Phlebotomy Exam
While preparing the phlebotomy equipment for a blood draw, the medical assistant notices the patient appears very anxious. Which of the following questions should the assistant ask the patient to ensure the patient's safety?
"Have you ever fainted during a phlebotomy test?"
Which of the following questions should a medical assistant ask a patient prior to obtaining a blood specimen for a lipid panel?
"When was the last time you had anything to eat or drink?"
A. allows control over suction B. most commonly used systems in adults C. Best for drawing from small, fragile veins
- syring needle system - evacuated needle system - butterfly system
Which of the following is the correct angle to use when using a winged infusion set?
10 to 15 degrees
Which of the following is the minimum amount of time a medical assistant should instruct a patient to leave their bandage in place following a phlebotomy or capillary puncture?
15 min
Which of the following angle is used for a routine venipuncture?
15 to 30 degrees
Of the following sites, where should the vein be anchored on the patient?
2 to 3 inches below the puncture site
Which of the following is the appropriate needle size when using a butterfly system?
22-gauge, 1/2-inch
How long should serum specimens be allowed to clot prior to centrifugation?
30 min
Which of the following is the preferred alcohol concentration for disinfecting the skin prior to a phlebotomy test?
70%
How many times should an EDTA tube be inverted?
8 to 1o times
Which of the following may occur if the needle is removed from the arm before removing the tourniquet?
Bleeding may occur around the puncture site
The additive in either yellow tubes are?
Blood Cultures & SPS
While reading the order form, the MA does not recognize one of the tests that needs to be preformed. What should the MA do in this situation?
Check the laboratory reference manual to determine which tube to use, how many tubes to draw, and other specifics about the test
Which of the following steps should a medical assistant take if they are unsure which tube to use when obtain a blood specimen?
Consult the laboratory reference manual
Which of the following information should be included on a laboratory requisition form?
Diagnosis code
Which of the following often requires chain of custody documentation?
Drug screening
Which of the following is the most common extreme reaction to phlebotomy?
Fainting
A clinic has just received laboratory results for a patient indicating an error with the sample. Which of the following actions should the medical assistant take first?
Forward the results and alert the ordering provider
Which tube has Alcohol/Glucose Sodium Fluoride and Potassium Oxalate?
Gray top tube
Which of the following tube is used for glucose testing?
Gray top tubes
Which tube is used for plasma determination?
Green top tubes
Which of the following is a post analytical consideration in phlebotomy?
Improper data entry
An infection that is acquired in a hospital setting:
Nosocomial infection
A medical assistant s preparing t centrifuge a blood sample when they notice the centrifuge is 3 months overdue for calibration. Which of the following actions should the assistant take?
Notify the laboratory supervisor and use another device
Which of the following components of blood is responsible for preventing excessive blood loss when a vessels is damages?
Platelets
The additive in the lavender or pink tube is?
Potassium EDTA
Which of the following color tubes should be drawn first?
Red
How should critical laboratory values be handled when they are received at the office?
Reports the critical values to the provider right away and document that the provider was notified.
A medial assistant is performing a phlebotomy draw on a patient who reports feeling lightheaded and restless. Which of the following actions should the assistant take?
Stop the procedure and alert the provider
Which of the following describes capillary puncture?
The method of acquiring blood from a fingertip or heel
Which of the following is a characteristic of collecting timed specimens?
They monitor therapeutic medication levels
How should light-sensitive samples be prepared for transport?
They should be wrapped in foil
T/F pressing the fingers against the patient's arm during the blood collection procedure helps keep the needle in the vein and limits the unnecessary movement of the syringe
True
Which of the following is the other name for the butterfly method of venipuncture?
Winged infusion method
Which of the following describes hematoma?
a collection of blood underneath the skin
In which of the following places should a medical assistant first attempt to locate a vein?
antecubital space
which of the following is the best next choice for venipuncture if the median cubital is not accessible?
cephalic vein
Which of the following should a medical assistant do when setting up a tray for winged infusion collection?
check expiration dates on all supplies
Which of the following may change the status of the patient's collection site?
dehydration
When performing a capillary puncture, the finger should not be squeezed to avoid?
diluting the blood sample with tissue fluid
Which of the following is used for blood collection with or without additives?
evacuated tube system (ETS)
Rupture or destruction of red blood cells?
hemolysis
Which of the following antecubital veins is considered the best vein to use for a venipuncture?
median cubital vein
Which of the following results in patient discomfort during the venipuncture procedures?
moving the needle after it has been inserted into the vein
Which of the following tube is used for serum testing?
red top tubes
Which of the following describes venipuncture?
the method of acquiring blood with a hollow needle inserted into a vein
Which of the following statements is not true in applying tourniquet?
tourniquet should be removed after two minutes of application
Which of the following areas of the foot should be used for capillary blood collection in infants?
underside of the heels
which of the following may be used for blood culture specimens?
yellow top tubes
