Full Test 6 1. Which set of elements should be documented to demonstrate that informed consent was properly obtained?Deselect Answer Patient signature and the nurse's initials only Date and time only Procedure name only Patient name, date/time, procedure, explanation of risks/benefits/alternatives, patient's questions, signature, and witness if required None Comment 2. Which action is most appropriate if blood flow is slow when using a winged infusion set?Deselect Answer Pull the needle back completely Apply excessive suction Gently adjust needle position Ask the patient to pump their fist repeatedly None Comment 3. Which antiseptic is commonly recommended for routine skin preparation prior to venipuncture?Deselect Answer Soap and water only Hydrogen peroxide 70% isopropyl alcohol Bleach solution None Comment 4. How should specimens that require cold transport (e.g., ammonia) be prepared for immediate transport?Deselect Answer Kept at room temperature in a padded carrier Placed in direct sunlight to warm briefly Placed in an ice-water slurry (crushed ice and water) or ice pack per protocol Stored upright in a refrigerator for 24 hours before transport None Comment 5. When should blood collection tubes be labeled during the specimen collection process?Deselect Answer At the patient's bedside immediately after the specimen is drawn, with patient present Later in the lab after specimens are transported Before entering the patient's room so labels don't touch the patient Only if requested by the ordering physician None Comment 6. Which class of fire extinguisher is appropriate for electrical fires involving energized equipment?Deselect Answer Class C Class A Class B Class D None Comment 7. Which skin antiseptic is preferred when collecting blood cultures from an adult to reduce contamination?Deselect Answer Chlorhexidine gluconate with alcohol Plain soap and water Normal saline wipe Hydrogen peroxide None Comment 8. Which preanalytical error is most likely to cause a falsely elevated potassium result?Deselect Answer Allowing the specimen to clot for 24 hours Transporting the sample on ice Underfilling a sodium citrate tube Hemolyzing the specimen (small needle, vigorous shaking, excessive force) None Comment 9. When is handwashing with soap and water preferred over alcohol-based hand sanitizer?Deselect Answer After touching intact skin and no fluids are present After caring for a patient with Clostridioides difficile (C. difficile) infection Before putting on gloves Only at the beginning and end of a shift None Comment 10. In the standard order of draw for venipuncture, which tube is typically collected immediately after blood culture bottles?Deselect Answer Lavender-top (EDTA) tube Light blue-top (sodium citrate) tube Green-top (heparin) tube Gray-top (potassium oxalate/sodium fluoride) tube None Comment 11. If a patient becomes lightheaded and begins to faint during a blood draw, what should the phlebotomist do first?Deselect Answer Continue the draw to finish the collection Immediately remove the needle, apply pressure, and call for assistance Offer the patient a sweet drink while drawing Lower the needle deeper to increase flow None Comment 12. Which tube color is typically used for coagulation studies such as PT and aPTT?Deselect Answer Lavender (EDTA) Green (heparin) Gray (potassium oxalate/fluoride) Light blue (sodium citrate) None Comment 13. Which of the following must always be included on a blood bank specimen label?Deselect Answer Room number and date only Last name and sex only Ordering physician and test name only Full name, DOB/unique ID, date/time of collection, and collector's initials None Comment 14. Which of the following is NOT an acceptable second identifier when collecting an inpatient specimen?Deselect Answer Hospital-assigned medical record number Patient's full name and date of birth Barcode or patient ID number from the wristband Room number None Comment 15. A patient has limited English proficiency. What is the most appropriate way to obtain informed consent?Deselect Answer Use a trained medical interpreter approved by the facility to explain the procedure and obtain consent Ask a bilingual family member in the room to translate Proceed after giving a written consent form in English Use gestures and simple words to get agreement None Comment 16. Before collecting a specimen from a patient, what is the first and essential step the collector must perform?Deselect Answer Verify the patient's identity using two patient identifiers Label the specimen container before confirming patient identity Begin collection immediately to avoid delays Ask a family member to confirm the patient's diagnosis None Comment 17. How long should you wash your hands with soap and water to appropriately remove pathogens during routine handwashing?Deselect Answer 5 seconds 10 seconds 20 seconds 60 seconds None Comment 18. Which of the following is TRUE about approved sharps containers used in healthcare settings?Deselect Answer They should be made of puncture-resistant material and clearly labeled They can be emptied into regular trash when full They should be left uncapped to allow airflow They should be replaced or closed when they reach the facility's recommended fill level (often 3/4 full) to prevent overfilling None Comment 19. If a patient is unconscious and cannot state their name or date of birth, which two identifiers are acceptable for specimen labeling?Deselect Answer Room number and nurse's name Diagnosis and attending physician's name Wristband identifiers (name/MRN) and the requisition/medical record number Bed number and time of admission None Comment 20. Which tube or container should be collected first when performing a venipuncture that includes blood cultures and routine tubes?Deselect Answer EDTA (lavender top) tube Serum (red top) tube Light blue (citrate) coagulation tube Blood culture bottles None Comment 21. What is the maximum recommended time a tourniquet should remain tied on a patient during venipuncture?Deselect Answer 3 minutes 1 minute 5 minutes 10 minutes None Comment 22. Which practice is the single most effective way to prevent the spread of infections in healthcare settings?Deselect Answer Performing proper hand hygiene (handwashing or alcohol-based rub) Wearing gloves for all patient interactions Cleaning floors once per shift Prescribing antibiotics for all suspected infections None Comment 23. What is the maximum recommended heel puncture depth for newborn infants to avoid bone injury?Deselect Answer 0.5 mm 1.0 mm 2.0 mm 4.0 mm None Comment 24. Which set of elements should be documented to demonstrate that informed consent was properly obtained?Deselect Answer Patient signature and the nurse's initials only Date and time only Procedure name only Patient name, date/time, procedure, explanation of risks/benefits/alternatives, patient's questions, signature, and witness if required None Comment 25. Which action is most appropriate if blood flow is slow when using a winged infusion set?Deselect Answer Pull the needle back completely Apply excessive suction Gently adjust needle position Ask the patient to pump their fist repeatedly None Comment 26. What is the maximum recommended depth for a heel puncture in a newborn?Deselect Answer 0.5 mm 1.0 mm 2.0 mm 3.0 mm None Comment 27. A requisition lists Robert J. King, DOB 07/10/1975. The patient introduces himself as 'Roberto King' but gives the same DOB. What is the best action?Deselect Answer Proceed because the DOB matches Proceed and label tubes after leaving the room Stop and resolve the name discrepancy before collecting Use the spelling on the requisition and continue None Comment 28. Which transmission-based precautions are required when collecting sputum from a patient suspected of active tuberculosis?Deselect Answer Standard precautions only Airborne precautions with an N95 respirator Droplet precautions with a surgical mask Contact precautions with gloves and gown None Comment 29. How long should a tourniquet remain on a patient during venipuncture to avoid hemoconcentration?Deselect Answer As long as necessary to find a vein No longer than one minute At least five minutes to dilate veins Until the first tube is completely filled None Comment 30. When is the correct time to label blood specimens collected from a patient?Deselect Answer At the nurse's station after all specimens are collected After returning to the lab to save time Immediately at the patient's bedside, in the presence of the patient When you have a quiet moment later in your shift None Comment 31. During cleanup after a venipuncture, which action best prevents accidental exposure to bloodborne pathogens?Deselect Answer Recapping the needle carefully Activating the safety device and disposing of the needle immediately Placing the needle on the tray temporarily Carrying the needle to the lab for disposal None Comment 32. Which action is most appropriate if blood flow is slow when using a winged infusion set?Deselect Answer Pull the needle back completely Apply excessive suction Gently adjust needle position Ask the patient to pump their fist repeatedly None Comment 33. Why is a standard surgical mask considered inadequate for protecting health-care workers from airborne infections?Deselect Answer It is too expensive for routine use It cannot be reused It does not filter small airborne particles nor form a tight face seal It covers the mouth but not the eyes None Comment 34. For an infant heel stick, what is the commonly recommended maximum puncture depth to avoid injuring the calcaneus (heel bone)?Deselect Answer 5.0 mm 3.5 mm 2.0 mm 0.5 mm None Comment 35. Which special handling is required for a specimen ordered for blood alcohol testing?Deselect Answer Immediate freezing Use of a non-alcohol skin antiseptic Transport in a warm container Extended clotting time None Comment 36. What is the most appropriate method to positively identify a patient before drawing blood?Deselect Answer Ask the patient to state their full name and date of birth and compare to the requisition or wristband Confirm the patient's room number and proceed Ask a family member to confirm the patient's identity Use the patient's chart at the nurse's station without asking the patient None Comment 37. Which evacuated tube is typically used for coagulation studies such as PT/INR?Deselect Answer Lavender top (EDTA) Red top (no additive) Light blue top (sodium citrate) Green top (heparin) None Comment 38. Which bedside check is most important immediately before starting a blood transfusion?Deselect Answer Verify patient identity vs ID band and blood unit label (and confirm verbally when possible) Record blood pressure 30 minutes after starting Flush IV line with heparin Set transfusion rate before identifying patient None Comment 39. What is the first step after sustaining a needlestick injury with a potentially contaminated needle?Deselect Answer Squeeze the wound to draw out blood and then cover it Finish your shift and report the incident at the end of the day Wash the area thoroughly with soap and water immediately Apply a topical antibiotic and ignore unless symptoms develop None Comment 40. A competent patient refuses a recommended treatment. What should the healthcare team do first?Deselect Answer Document the refusal and proceed with treatment anyway Respect the patient's decision, document the refusal, and notify the provider Contact security to force treatment if it's in the patient's best interest Ignore the refusal because the team believes the treatment is necessary None Comment 41. What is the most appropriate handling of an arterial blood gas (ABG) specimen after collection?Deselect Answer Leave at room temperature for 60 minutes Expose to air to allow oxygen exchange Centrifuge and separate plasma before transport Remove air bubbles, place on ice, and transport immediately None Comment 42. Which tube additive is typically required for collection of a blood alcohol specimen?Deselect Answer EDTA (lavender top) Lithium heparin (green top) Serum separator (SST, gold top) Sodium fluoride/potassium oxalate (gray top) None Comment 43. Which action best demonstrates that a patient has given valid informed consent?Deselect Answer The patient explains the procedure, risks, and alternatives and signs the consent form The patient nods once when the nurse asks if they agree A family member signs the form on behalf of the patient because they are present The chart shows a prior discussion but no signature was obtained None Comment 44. What is the correct way to dispose of a used hypodermic needle in a clinical setting?Deselect Answer Recap the needle and place it in the trash Place it uncapped immediately into a labeled, puncture-resistant sharps container Break the needle off and throw the parts away separately Rinse the needle and place it in a biohazard bag None Comment 45. When collecting blood cultures using a winged infusion set (butterfly), which bottle should be filled first to reduce the risk of introducing air into an anaerobic bottle?Deselect Answer Aerobic bottle first, then anaerobic Anaerobic bottle first, then aerobic Order does not matter Fill only one bottle None Comment 46. Which specimen condition is most likely to affect test accuracy if not corrected?Deselect Answer Gentle inversion after collection Prompt delivery to the lab Hemolysis due to rough handling Use of leak-proof transport bags None Comment 47. During cleanup after a venipuncture, which action best prevents accidental exposure to bloodborne pathogens?Deselect Answer Recapping the needle carefully Activating the safety device and disposing of the needle immediately Placing the needle on the tray temporarily Carrying the needle to the lab for disposal None Comment 48. If a patient begins to feel faint during a blood draw, what is the first action the phlebotomist should take?Deselect Answer Immediately remove the needle and tourniquet, and assist the patient to a safe position Apply more alcohol to the puncture site Hold the patient's arm down and complete the draw quickly Call for a supervisor and wait at the bedside without removing the needle None Comment 49. What is the best method to positively identify a patient before drawing blood?Deselect Answer Ask the patient their room number Check the wristband and ask the patient to state name and date of birth Rely on the patient's chart at the bedside Ask a nearby staff member to confirm identity None Comment 50. Which specimen condition is most likely to affect test accuracy if not corrected?Deselect Answer Gentle inversion after collection Prompt delivery to the lab Hemolysis due to rough handling Use of leak-proof transport bags None Comment 51. When using evacuated tubes, which tube should be drawn before EDTA to avoid contamination that could affect coagulation testing?Deselect Answer Light blue (sodium citrate) tube Gold/tiger-top (SST) tube Green (heparin) tube Gray (glucose) tube None Comment 52. Which special handling is required for a specimen ordered for blood alcohol testing?Deselect Answer Immediate freezing Use of a non-alcohol skin antiseptic Transport in a warm container Extended clotting time None Comment 53. Which practice is correct when drawing a specimen for PT/INR testing?Deselect Answer Use a purple-top EDTA tube Fill a light-blue sodium citrate tube to proper volume (9:1 ratio) and invert gently Collect in a green-top heparin tube and freeze immediately Allow the specimen to clot before centrifuging None Comment 54. In the standard order of draw for venipuncture, which tube is typically collected immediately after blood culture bottles?Deselect Answer Lavender-top (EDTA) tube Light blue-top (sodium citrate) tube Green-top (heparin) tube Gray-top (potassium oxalate/sodium fluoride) tube None Comment 55. Which special handling is required for a specimen ordered for blood alcohol testing?Deselect Answer Immediate freezing Use of a non-alcohol skin antiseptic Transport in a warm container Extended clotting time None Comment 56. Which tube is typically used for a complete blood count (CBC)?Deselect Answer Light blue (sodium citrate) Lavender (EDTA) Green (heparin) Red (no additive) None Comment 57. Which statement about an emancipated minor's ability to consent is correct?Deselect Answer Emancipated minors can never consent to their own care Emancipated minors can consent to medical treatment without parental permission Only parents can consent for emancipated minors Teachers may consent for emancipated minors None Comment 58. What is the maximum recommended time a tourniquet should remain on a patient before releasing to avoid hemoconcentration?Deselect Answer 2 minutes 1 minute 3 minutes 5 minutes None Comment 59. During a 24-hour urine collection, how should the urine be stored until returned to the lab?Deselect Answer Room temperature in a warm place Add formalin routinely Direct sunlight to keep it warm Refrigerate or keep on ice throughout the 24 hours None Comment 60. A therapeutic drug "peak" level is ordered for an IM antibiotic. When should the specimen be collected to measure peak concentration?Deselect Answer 1 to 2 hours after administration Immediately before the next scheduled dose Just before the medication is administered 24 hours after administration None Comment 61. During which situation is wearing a surgical mask (not respirator) indicated?Deselect Answer When performing procedures likely to generate splashes or sprays of blood or body fluids For care of patients under airborne precautions When sterile technique is not required and no splashes are expected To replace hand hygiene between patients None Comment 62. If a blood or body fluid splashes into your eye at work, how long should you flush the eye with water or saline?Deselect Answer 30 seconds 1 minute 15 minutes 5 minutes None Comment 63. Which practice is required when collecting a blood sample for legal blood alcohol testing (e.g., DUI cases)?Deselect Answer Chilling on ice immediately at bedside Following chain-of-custody procedures with documentation and secure transport Using any antiseptic if labeled correctly Drawing two tubes and discarding one None Comment 64. For cryoglobulin testing, what is the most appropriate specimen handling procedure to prevent false results?Deselect Answer Refrigerate immediately at 4°C Keep at room temperature until clot forms Keep the specimen at 37°C (warm) until clot/serum separation Freeze immediately None Comment 65. A patient scheduled for laboratory testing reports feeling faint before the draw. What is the best initial action?Deselect Answer Continue with the draw to finish quickly Have the patient stand to improve circulation Seat or position the patient safely and assess before proceeding Cancel the test without explanation None Comment 66. What is the maximum recommended depth for a heel puncture in a newborn?Deselect Answer 0.5 mm 1.0 mm 2.0 mm 3.0 mm None Comment 67. A patient clearly refuses a blood draw but a family member insists the procedure be done. What is the best action for the phlebotomist?Deselect Answer Explain to the family that you must honor their request and proceed Ask the family member to sign a consent form and proceed Stop the procedure and notify the nurse or provider according to facility policy Tell the patient they must comply because a test was ordered None Comment 68. Which hand hygiene is recommended immediately before putting on gloves to collect blood cultures if hands are not visibly soiled?Deselect Answer No hand hygiene is needed if gloves will be worn Wash with soap and water for at least 2 minutes Use an alcohol-based hand rub before donning gloves Apply hand lotion before gloving None Comment 69. How long should a tourniquet be left in place during venipuncture to minimize hemoconcentration risk?Deselect Answer No longer than 1 minute before releasing or removing it At least 5 minutes to ensure a strong vein fill Until you have finished labeling the tubes Until the patient requests it to be removed None Comment 70. Which specimen condition is most likely to affect test accuracy if not corrected?Deselect Answer Gentle inversion after collection Prompt delivery to the lab Hemolysis due to rough handling Use of leak-proof transport bags None Comment 71. Which of the following is the correct policy regarding recapping needles after use?Deselect Answer Recap using two hands to secure the cap Do not recap; immediately dispose of the needle in a sharps container without recapping Recap and store for later disposal if the container is full Recap and hand off to another trained employee for disposal None Comment 72. If you experience an accidental needlestick from a contaminated needle, what should you do first?Deselect Answer Squeeze the puncture site to draw blood out and then continue working Delay reporting until the end of your shift Cover the wound with a sterile bandage and return to the patient Immediately wash the area with soap and water, report the incident to your supervisor, and seek medical evaluation per facility policy None Comment 73. Which color-coded bag is typically used for disposable infectious waste (regulated medical waste) in many healthcare settings?Deselect Answer Clear Blue Red Yellow None Comment 74. Which action is most appropriate if blood flow is slow when using a winged infusion set?Deselect Answer Pull the needle back completely Apply excessive suction Gently adjust needle position Ask the patient to pump their fist repeatedly None Comment 75. After completing a venipuncture and withdrawing the needle, what is the safest immediate action to prevent a needlestick injury?Deselect Answer Recap the needle carefully and place it in a biohazard bag Leave the needle on the bedside table while you finish charting Hand the uncapped needle to a coworker for disposal Activate safety mechanism if present and immediately dispose of the needle in a puncture-resistant sharps container without recapping None Comment 76. Why must food be kept out of specimen or laboratory storage areas labeled for specimens only?Deselect Answer Food can be stored there if it is in a sealed container Food helps maintain refrigerator temperature stability Food is allowed as long as it is labeled with the technician's name Storing food risks cross-contamination and violates infection-control policies None Comment 77. What is the most reliable method to identify a patient before performing venipuncture?Deselect Answer Verify the patient's room number Ask a family member to confirm the patient's name Ask the patient to state their full name and date of birth and compare with the wristband Rely on the name on the requisition form None Comment 78. Who is typically authorized to give consent for medical treatment of a minor?Deselect Answer A neighbor who brings the child to the clinic The child's parent or legal guardian A schoolteacher who witnessed an injury Any adult family friend present at the visit None Comment 79. What is the recommended safe method for handling a used hypodermic needle immediately after venipuncture?Deselect Answer Recap the needle using two hands before disposal Bend the needle before discarding Place it on a bedside tray for later disposal Activate the safety feature or use the one-handed scoop technique and dispose in a sharps container None Comment 80. For an adult capillary (fingerstick) specimen, which site is generally preferred?Deselect Answer Tip of the thumb Lateral side of the middle or ring finger (distal segment) Center of the fingertip pad Pad of the index finger None Comment 81. Which tube should generally be collected first in routine venipuncture after sterile culture bottles?Deselect Answer Lavender-top (EDTA) Light-blue top (sodium citrate) Gray-top (glycolysis inhibitor) Red-top serum tube None Comment 82. Which specimen condition is most likely to affect test accuracy if not corrected?Deselect Answer Gentle inversion after collection Prompt delivery to the lab Hemolysis due to rough handling Use of leak-proof transport bags None Comment 83. Before performing a venipuncture, what is the best method to verify a patient's identity?Deselect Answer Ask a family member in the room to confirm the patient's name Ask the patient to state their full name and date of birth and compare with the requisition Rely on the patient's room number and bed label Use the name on the patient chart without asking the patient None Comment 84. If a patient has designated a durable power of attorney for healthcare, who makes medical decisions when the patient lacks capacity?Deselect Answer The agent the patient appointed in the durable power of attorney document The attending nurse without consulting others The primary physician automatically without consulting the agent Any adult family member regardless of the document None Comment 85. What is the maximum recommended time a tourniquet should remain tied on a patient's arm during venipuncture?Deselect Answer 5 minutes 1 minute 3 minutes 10 minutes None Comment 86. Two patients in the same unit share the same first and last name. Before drawing blood from one of them, the phlebotomist should:Deselect Answer Use the room number to identify the correct patient Ask the family which one to draw Use the last four digits of the SSN only Verify two identifiers such as full name, DOB or medical record number and check the wristband None Comment 87. What is the most reliable method to identify a patient before performing venipuncture?Deselect Answer Verify the patient's room number Ask a family member to confirm the patient's name Ask the patient to state their full name and date of birth and compare with the wristband Rely on the name on the requisition form None Comment 88. Which special handling is required for a specimen ordered for blood alcohol testing?Deselect Answer Immediate freezing Use of a non-alcohol skin antiseptic Transport in a warm container Extended clotting time None Comment 89. An infant in the nursery does not yet have a given name. Which identifiers should be used when collecting specimens?Deselect Answer Infant's nickname and birth weight Mother's room number and infant's length Nursery location and time of birth Mother's full name and the infant's date of birth None Comment 90. If a healthcare worker encounters a chemical spill containing a hazardous cleaner, what should they do first?Deselect Answer Ensure personal safety (put on PPE) and follow the facility spill procedure Immediately mop it up with a towel without PPE Ignore it if it seems small Mix a different cleaner with the spill to dilute it None Comment 91. A specimen arrives at the lab with obvious hemolysis. What is the most appropriate action?Deselect Answer Centrifuge at a higher speed to reduce hemolysis effects Analyze the sample and annotate the report Dilute the sample and proceed with testing Request a recollection of the specimen None Comment 92. A patient scheduled for laboratory testing reports feeling faint before the draw. What is the best initial action?Deselect Answer Continue with the draw to finish quickly Have the patient stand to improve circulation Seat or position the patient safely and assess before proceeding Cancel the test without explanation None Comment 93. Which skin antiseptic is preferred when collecting blood cultures from an adult to reduce contamination?Deselect Answer Chlorhexidine gluconate with alcohol Plain soap and water Normal saline wipe Hydrogen peroxide None Comment 94. What is the correct sequence for donning personal protective equipment for airborne precautions?Deselect Answer Mask/respirator, gloves, gown, goggles Gown, mask/respirator, goggles/face shield, gloves Gloves, gown, mask, goggles Goggles, gloves, gown, mask None Comment 95. A collected blood tube arrives at the lab with no patient identifier on the tube but a completed requisition form. What should the phlebotomist or technologist do?Deselect Answer Accept the tube since the requisition has the information Label the tube based on the requisition and process it Ask a coworker to initial the tube for identification Reject the specimen and request recollection with proper labeling None Comment 96. If a patient becomes faint or lightheaded during a blood draw, what is the most appropriate immediate action?Deselect Answer Speed up the draw to finish quickly Continue the draw and apply cold compress Ignore mild complaints and finish the procedure Stop the procedure, withdraw the needle, apply pressure, and have the patient sit or lie down None Comment 97. After using a needle to draw blood, what is the proper immediate action to take?Deselect Answer Dispose the uncapped needle immediately into an approved sharps container without recapping Recap the needle with two hands before disposal Place the needle into a regular lined trash can Bend or break the needle before disposal to prevent reuse None Comment 98. A trough level is scheduled but the patient missed their dose. What is the appropriate action?Deselect Answer Collect anyway to avoid delaying the lab Give the missed dose and collect the trough immediately Reschedule without informing the provider Notify the nurse/provider because timing is affected and instructions are needed None Comment 99. During cleanup after a venipuncture, which action best prevents accidental exposure to bloodborne pathogens?Deselect Answer Recapping the needle carefully Activating the safety device and disposing of the needle immediately Placing the needle on the tray temporarily Carrying the needle to the lab for disposal None Comment 100. During cleanup after a venipuncture, which action best prevents accidental exposure to bloodborne pathogens?Deselect Answer Recapping the needle carefully Activating the safety device and disposing of the needle immediately Placing the needle on the tray temporarily Carrying the needle to the lab for disposal None Comment 101. Which vein is typically the first choice for routine venipuncture in the antecubital fossa?Deselect Answer Cephalic vein Basilic vein Dorsal metacarpal vein Median cubital vein None Comment 102. A patient scheduled for laboratory testing reports feeling faint before the draw. What is the best initial action?Deselect Answer Continue with the draw to finish quickly Have the patient stand to improve circulation Seat or position the patient safely and assess before proceeding Cancel the test without explanation None Comment 103. Which of the following best describes standard precautions in clinical settings?Deselect Answer Use isolation only for symptomatic patients Wear a gown for all patient interactions Treat all blood and body fluids as potentially infectious and use appropriate PPE Only use gloves when blood is visible None Comment 104. According to the standard order of draw, which tube is collected immediately after a light blue tube?Deselect Answer Lavender (EDTA) tube Red (plain, no additive) tube Green (heparin) tube Gray (sodium fluoride) tube None Comment 105. During a venipuncture the patient becomes pale and dizzy and begins to faint. What should the phlebotomist do first?Deselect Answer Apply a cold compress and continue the draw Immediately remove the needle, apply pressure, lower the patient to a supine position and call for help Tell the patient to take deep breaths and keep drawing Leave the needle in and call for security None Comment 106. In which situation is implied consent most appropriate?Deselect Answer An unconscious patient who needs immediate life-saving treatment A conscious patient who says they are unsure about surgery A routine blood draw for a competent outpatient When a family member verbally approves treatment None Comment 107. When should you use soap and water for hand hygiene instead of an alcohol-based hand rub?Deselect Answer After every glove use regardless of visible soil When hands are visibly soiled or after caring for a patient with diarrhea Only at the beginning of a shift Never; alcohol-based rubs are always preferred None Comment 108. Which method is the most reliable for positively identifying an outpatient before drawing blood?Deselect Answer Ask the patient to state their full name and date of birth and compare with the requisition Ask the patient a yes/no question such as 'Are you John Smith?' Use the room number listed on the appointment schedule Verify the name on the outside of the patient's chart without asking the patient None Comment 109. When should specimens be labeled to ensure correct patient identification?Deselect Answer After returning to the laboratory to avoid distractions In the hallway immediately after leaving the room At the bedside in the presence of the patient (or witness) immediately after collection When there is time later during your shift None Comment 110. What is the primary purpose of a 'type and screen'?Deselect Answer Screen for bacterial contamination in donor blood Determine hemoglobin/hematocrit Reserve a specific donor unit Determine ABO/Rh type and screen for unexpected antibodies None Comment 111. Which practice is most likely to cause a hemolyzed blood specimen?Deselect Answer Delaying centrifugation by 24 hours Using the wrong tube color Failing to invert a tube after collection Forcing blood through a small-gauge needle or vigorous transfer from syringe through a needle None Comment 112. A patient scheduled for laboratory testing reports feeling faint before the draw. What is the best initial action?Deselect Answer Continue with the draw to finish quickly Have the patient stand to improve circulation Seat or position the patient safely and assess before proceeding Cancel the test without explanation None Comment 113. How should a technician transport a blood specimen to the laboratory to prevent leaks and contamination?Deselect Answer Place tube open-side up in a paper bag Seal primary tube, then place it in a leak-proof secondary container labeled with biohazard symbol Carry unsealed tubes in a tray covered by a cloth Transport multiple tubes together without separation None Comment 114. Which antiseptic is preferred for skin cleansing prior to collecting blood cultures to reduce contamination?Deselect Answer 70% isopropyl alcohol alone Povidone-iodine scrub for 15 seconds Hydrogen peroxide solution 2% chlorhexidine gluconate in 70% isopropyl alcohol None Comment 115. Which antiseptic is preferred for skin cleansing prior to collecting blood cultures to reduce contamination?Deselect Answer 70% isopropyl alcohol alone Povidone-iodine scrub for 15 seconds Hydrogen peroxide solution 2% chlorhexidine gluconate in 70% isopropyl alcohol None Comment 116. If a chemical splash reaches the eyes, what is the minimum recommended duration to flush the eyes with water?Deselect Answer 5 seconds 1 minute At least 15 minutes No flushing is needed unless pain occurs None Comment 117. When is the correct time to label blood collection tubes for a fasting glucose sample?Deselect Answer At the nurses' station after you return In the laboratory upon receipt After drawing and leaving the patient's room Immediately at the patient's bedside after collection None Comment 118. Which vein is the preferred site for routine antecubital venipuncture because it is well-anchored and accessible?Deselect Answer Median cubital vein Cephalic vein Basilic vein Dorsal venous network of the hand None Comment 119. Which method is the most reliable for positively identifying an outpatient before drawing blood?Deselect Answer Ask the patient to state their full name and date of birth and compare with the requisition Ask the patient a yes/no question such as 'Are you John Smith?' Use the room number listed on the appointment schedule Verify the name on the outside of the patient's chart without asking the patient None Comment 120. How many gentle inversions are recommended immediately after collection of an EDTA (lavender-top) tube to ensure proper mixing?Deselect Answer 1-2 inversions 3-4 inversions 5-7 inversions 8-10 inversions None Comment 1 out of 120
