MedPreps | Phlebotomy Practice Test

Phlebotomy Practice Test

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Question 1

A hydrogen breath test can be used to detect which of the following conditions?

A	glucose metabolism disorders
B	H. Pylori infections
C	lactose intolerance
D	PKU

Question 1 Explanation:

Hydrogen breath tests detect hydrogen gas released by bacteria in the intestines that ferment lactose. High hydrogen gas levels in the breath indicate lactose intolerance.

Question 2

The most important part of collecting a specimen for a test is

A	patient identification
B	proper phlebotomy technique
C	courtesy to the patient
D	state-of-the-art equipment

Question 2 Explanation:

The most important step in collecting a sample is patient identification. Being courteous to the patient and using good phlebotomy technique are also very important but not the most important.

Question 3

Major functions of this organ include glycogen storage, secretion of bile, and detoxification of harmful substances:

A	liver
B	spleen
C	pancreas
D	gall bladder

Question 3 Explanation:

The liver's main functions include glycogen storage, protein catabolism, detoxification of harmful substances, and bile secretion.

Question 4

To mix an additive tube, you should:

A	centrifuge
B	invert 3-8 times
C	invert 8-10 times
D	shake gently

Question 4 Explanation:

Additive microtubes should be mixed by inverting 8-10 times, depending on the manufacturer's instructions.

Question 5

If sufficient blood does not appear at first from a capillary puncture site on a finger, what should be done?

A	the patient should hold up his/her arm
B	the patient should clench his/her hand
C	gentle pressure should be applied proximal to the site
D	the finger should be firmly squeezed several times

Question 5 Explanation:

To stimulate blood flow, the site should be positioned downward and gentle pressure should be applied proximal to the site. The area should not be pressed too hard or squeezed repetitively. That could cause hemolysis or tissue fluid contamination.

Question 6

Which of the following may still occur during arterial puncture even when using good technique and proper procedure?

A	arteriospasm
B	extreme pain
C	thrombus formation
D	hematoma

Question 6 Explanation:

Because arteriospasms are a reflex, they may not be avoidable, especially with anxious patients. The other three conditions should avoidable using proper procedure.

Question 7

This blood bank test is used to check for unsuspected antibodies and antigens in the recipient's and donor's blood that could cause severe reactions during transfusion:

A	Compatibility testing
B	Type and Rh
C	Antibody screen
D	Type and crossmatch

Question 7 Explanation:

Compatibility testing is used to check for unsuspected antibodies and antigens in the recipient's and donor's blood that could cause severe reactions during transfusion.

Question 8

Loss of consciousness resulting from insufficient blood flow to the brain is known as:

A	syncope
B	infarction
C	nausea
D	trauma

Question 8 Explanation:

Syncope is the clinical term for fainting. It involves loss of consciousness due to insufficient blood flow to the brain.

Question 9

When reviewing a requisition all of the following must be performed EXCEPT:

A	ensure special circumstances are met before performing test
B	verify the date, time, and test to be collected
C	check that required information is present and complete
D	verifying the patient's social security number

Question 9 Explanation:

A through review of a test requisition involves: checking for all required information; verifying time, date, and test to be collected; identifying any special circumstances; and determining the collection status and test priority.

Question 10

The "lubb" or first sound of the heartbeat is caused by:

A	the contraction of the ventricles
B	the closing of the AV valves
C	the closing of the semilunar valves
D	the contraction of the atria

Question 10 Explanation:

The first sound of the heartbeat, "lubb," is caused by the closing of the AV valves.

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