Chapter 5 Quiz PDF

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Chapter 5 Phlebotomy Quiz...

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Chapter 5. Special Blood Collection Multiple Choice Identify the choice that best completes the statement or answers the question. _C___ 1. The test order with the highest priority is classified as: A. fasting. B. timed. C. stat. D. postprandial. __A__ 2. A patient who is not allowed to have food or water for a specified time is classified as: A. fasting. B. NPO. C. preprandial. D. basal. __A__ 3. To monitor changes in a patient’s hemoglobin level, a blood collector may be requested to collect: A. a fasting sample. B. samples from both arms. C. samples at specific times. D. a sample as soon as possible. _C___ 4. A glucose tolerance test is performed to diagnose or evaluate: A. hypoglycemia. B. diabetes insipidus. C. diabetes mellitus. D. Both A and C _C___ 5. Plasma cortisol levels are scheduled to be drawn between 0800 and 1000 because: A. patients must be in a basal state. B. patients must not be fasting. C. cortisol exhibits diurnal variation. D. cortisol is only produced during the morning. __C__ 6. Peak and trough levels are collected to monitor: A. illegal drug use. B. diurnal variation.

C. therapeutic drug levels. D. basal metabolism. __C__ 7. The timing for an oral glucose tolerance test (OGTT) begins: A. after collection of the fasting sample. B. when the patient begins drinking the glucose. C. when the patient finishes drinking the glucose. D. 30 minutes after the glucose is finished. __C__ 8. A trough level is drawn: A. 30 minutes after drug administration. B. while the patient is fasting. C. prior to administering medication. D. immediately after administering medication. __B__ 9. The term diurnal variation is associated with: A. blood cultures. B. fasting samples. C. forensic samples. D. timed collections. __B__ 10. The number of samples collected from a patient receiving a 2-hour oral glucose tolerance test (OGTT) is: A. one. B. two. C. three. D. four. __A__ 11. The samples collected during the oral glucose tolerance test (OGTT) after the patient drinks the glucose will

be analyzed at the end of the test. The samples should be collected in: A. gray stopper tubes. B. serum separator tubes (SSTs). C. plasma separator tubes (PSTs). D. red stopper tubes. __D__ 12. What information should be included on a peak or trough level requisition form? A. Time the medication was given B. Method of medication administration

C. Time the sample was drawn D. All of the above __C__ 13. The fasting sample for an oral glucose tolerance test (OGTT) is drawn at 0700, and the patient finishes

drinking the glucose at 0745. The correct time to draw the 1-hour sample is: A. 0800. B. 0815. C. 0845. D. 0915. __D__ 14. A blood collector who cannot locate the patient on whom a cortisol level is scheduled for collection at 1000

should: A. return the requisition to the nursing station for rescheduling. B. request that the nursing station to call the laboratory when the patient is available. C. collect the sample 2 hours after the patient finishes lunch. D. reschedule the test for 1600. __A__ 15. Blood cultures are performed to detect the presence of: A. septicemia. B. spiking fevers. C. fever of unknown origin. D. antibiotics. _B___ 16. The most important consideration when collecting a blood culture is: A. aseptic technique. B. the puncture site. C. minimizing the number of sticks. D. the amount of blood collected. _B___ 17. Some blood culture collection systems contain a resin to: A. prevent clotting. B. inactivate antibiotics. C. concentrate the microorganism. D. remove skin contaminates. _A___ 18. The ideal time for collecting a blood culture is: A. just before the patient’s temperature spikes. B. after antibiotics have been given.

C. when the patient’s white blood cell count is the highest. D. when the patient’s temperature is the highest. __A__ 19. The purpose of sodium polyanetholsulfonate in a blood culture bottle is to: A. inhibit bacterial growth. B. prevent clotting. C. prevent contamination. D. identify bacterial growth. __A__ 20. When blood is inoculated into blood culture bottles using a winged blood collection set, the: A. anaerobic bottle is inoculated first. B. safety device is activated first. C. aerobic bottle is inoculated first. D. volume of blood inoculated is increased. __D__ 21. To inoculate blood culture media with blood drawn in a syringe, the blood collector: A. vents an anaerobic container. B. inoculates an aerobic bottle first. C. mixes the syringe before inoculation. D. inoculates an anaerobic bottle first. __B__ 22. Samples that require chilling immediately after collection are placed in a: A. container of ice cubes. B. container of ice and water. C. bag of dry ice. D. flask of cold water. __D__ 23. Samples for which of the following should be protected from light? A. Beta-carotene B. Vitamin A C. Bilirubin D. All of the above _B___ 24. Which of the following tests must be placed on ice immediately after collection? A. Cold agglutinins B. Lactic acid C. Cholesterol

D. Antibody identification __C__ 25. Chain of custody refers to the: A. method of infection control. B. patient identification procedures. C. documentation of sample handling for legal samples. D. collection of samples for employment physicals. _C___ 26. A blood sample for DNA analysis to determine paternity is considered a: A. routine sample. B. timed sample. C. legal sample. D. postprandial sample. __D__ 27. Samples for cold agglutinins must be: A. transported on ice. B. drawn in a green stopper tube. C. processed in a refrigerated centrifuge. D. kept warm. __C__ 28. A falsely decreased blood alcohol level may be obtained if: A. blood is collected in a gray stopper tube. B. the site is cleansed with Zephiran chloride. C. the tube is only partially filled. D. the tube is overfilled. _A___ 29. A blood collector on the evening shift draws a sample for cold agglutinins and places it in the refrigerator

for the morning shift. Test results of this sample will: A. be falsely decreased. B. be falsely increased. C. be unaffected. D. represent the patient’s true condition. __D__ 30. A blood collector required to testify in a legal proceeding may be asked about: A. sample collection method. B. patient identification procedure. C. time of collection.

D. All of the above _D___ 31. Select the response that lists the major steps of the 2-hour oral glucose tolerance test (OGTT) in the proper

order. A. Patient drinks a 75-g glucose solution within 5 minutes, a fasting glucose sample is collected,

and patient returns for an additional glucose test in 2 hours. B. Patient drinks a 75-g glucose solution within 5 minutes, patient returns for an additional

glucose test in 1 hour, and patient returns for an additional glucose test in 2 hours. C. A fasting glucose sample is collected, patient returns for an additional glucose test in 2 hours,

and patient drinks a 75-g glucose solution within 5 minutes. D. A fasting glucose sample is collected, patient drinks a 75-g glucose solution within 5

minutes, and patient returns for an additional glucose test in 2 hours. __A__ 32. To ensure patient safety and medication effectiveness, the blood levels of many therapeutic drugs are

monitored. The samples that are typically drawn to do this are: A. a trough level drawn before the next scheduled dose is given and a peak level drawn after the

dose is given. B. a trough level drawn as a fasting sample at 6:00 a.m. and a peak level drawn 2 hours later. C. a peak level drawn before the next scheduled dose is given and a trough level drawn after the

dose is given. D. a peak level drawn as a fasting sample at 6:00 a.m. and a trough level drawn 2 hours later. __D__ 33. Blood cultures may be ordered on a stat basis because: A. this makes collection of the samples more convenient for the blood collector. B. the concentration of microorganisms fluctuates and is often highest at specific times of the

day. C. the stat sample will act as a control for the cultures drawn at scheduled times. D. the concentration of microorganisms fluctuates and is often highest just before the patient’s

temperature spikes. __D__ 34. Which of the following statements regarding cold agglutinins testing is true? A. The sample must be kept warm until it is processed because cold agglutinins act at cold

temperatures. B. Cold agglutinins are autoantibodies produced by persons infected with Mycoplasma

pneumoniae. C. Cold agglutinins are autoantibodies produced by persons with an autoimmune hemolytic

anemia. D. All of the above __D__ 35. Blood collector training in the performance of arterial punctures should include which of the following?

A. Safety precautions B. Possible complications C. Supervised practice D. All of the above __B__ 36. Arterial blood may be requested for which of the following? A. Ammonia B. PCO2 C. Lactic acid D. All of the above __C__ 37. The artery located on the thumb side of the wrist is the: A. brachial. B. ulnar. C. radial. D. femoral. __B__ 38. A large artery located near the basilic vein and the median nerve is the: A. ulnar. B. brachial. C. radial. D. cephalic. __B__ 39. An alternate pathway capable of supplying blood to an area if the main pathway is obstructed is referred to

as: A. circulatory bypass. B. collateral circulation. C. shunt circulation. D. an arterial fistula. __A__ 40. Under normal conditions, arterial blood will have a(n): A. higher PO2 than PCO2. B. decreased PO2 and PCO2. C. equal amount of PO2 and PCO2. D. higher PCO2 than PO2. __C__ 41. When performing an arterial puncture, the finger of the nondominant hand is:

A. used to anchor the artery. B. placed where the needle enters the skin. C. placed where the needle enters the artery. D. used to measure the patient’s heart rate. _A___ 42. Upon completion of an arterial puncture, the syringe is rotated to: A. expel air from the syringe. B. activate the needle safety device. C. attach the Luer tip cap. D. mix the anticoagulant. __D__ 43. When collecting blood from an artery, the designated collector should: A. ask the patient to make a tight fist. B. tighten the tourniquet to stop arterial flow. C. request a nurse to be present. D. make sure that the patient is in a steady state. _D___ 44. To achieve a steady state in a patient prior to collection of arterial blood gases, the patient should: A. empty the bladder. B. fast for 12 hours. C. cough 5 to10 times to clear lungs. D. rest for 30 minutes. _D___ 45. The artery of choice for collecting arterial samples is the: A. ulnar. B. brachial. C. cephalic. D. radial. __A__ 46. The modified Allen test is used to determine collateral circulation in the: A. ulnar artery. B. brachial artery. C. radial artery. D. cephalic artery. ___D_ 47. Which of the following information is required on the requisition form when collecting arterial blood gases

(ABGs)?

A. Patient’s respiration rate B. Type of ventilation the patient is receiving C. Type of patient activity D. All of the above __D__ 48. When performing the modified Allen test, pressure is released from the: A. radial and ulnar arteries. B. ulnar and brachial arteries. C. radial artery only. D. ulnar artery only. __B__ 49. When performing an arterial puncture, the needle is inserted bevel: A. down at a 90-degree angle. B. up at a 30- to 45-degree angle. C. up at a 15- to 20-degree angle. D. down at a 10-degree angle. _A___ 50. After the artery has been entered, the syringe plunger: A. will be pushed back by the blood. B. should be rapidly pulled back. C. must be rotated. D. should be moved back and forth. __C__ 51. Following arterial sample collection, pressure is applied to the puncture site for: A. 2 minutes by the blood collector. B. 2 minutes by the blood collector or patient. C. 3 to 5 minutes by the blood collector. D. 10 minutes by the blood collector or patient. __D__ 52. Prior to completing an arterial puncture procedure, the blood collector should:

1. notify the nursing station. 2. check the site for hematoma. 3. check a radial pulse. 4. apply a pressure bandage. A. 1 and 3 B. 2 and 4 C. 3 and 4

D. 2, 3, and 4 __D__ 53. A blood collector would be most likely to perform an accidental arterial puncture when attempting to

puncture the: A. cephalic vein. B. median cubital vein. C. radial vein. D. basilic vein. __A__ 54. After pressure is released in the modified Allen test, if color returns to the patient’s palm within 5 seconds,

the: A. radial artery can be punctured. B. ulnar artery can be punctured. C. brachial artery should be used. D. test must be repeated. _A___ 55. Collateral circulation is necessary to prevent complications caused by: A. arteriospasm. B. infection. C. vasovagal reaction. D. hemorrhage. __C__ 56. Which of the following arterial puncture complications would cause a patient to lose consciousness rapidly? A. Arteriospasm B. Nerve damage C. Vasovagal reaction D. Hemorrhage _C___ 57. Failure to locate a radial pulse after arterial puncture of the radial artery indicates: A. venous blood was collected. B. the ulnar artery is occluded. C. a possible arteriospasm. D. the patient has expired. True/False Indicate whether the statement is true or false.

__T__ 58. When performing a glucose tolerance test (GTT), the fasting blood sample is tested before the patient drinks

the glucose. __T__ 59. Blood cultures should be mixed after collection. __F__ 60. Administering a local anesthetic before performing an arterial puncture may interfere with arterial blood gas

(ABG) results. ___F_ 61. When performing a modified Allen test, pressure is released on the radial artery. Matching

Match the following arterial puncture complications with the possible cause or collection error. A. Arteriospasm B. Hematoma C. Hemorrhage D. Infection E. Nerve damage F. Vasovagal reaction _E___ 62. Deep puncture __B__ 63. Tissue destruction _A___ 64. Failure to apply adequate pressure __C__ 65. Coagulation disorders __F__ 66. Apprehensive patient __D__ 67. Not cleansing the site...