Question 1

The difference between glass and plastic red stopper tubes is that the:

Accepted Answer

A)   glass tubes cannot be used for serology tests.
B)   glass tubes contain heparin.
C)   plastic tubes contain a clot activator.
D)   plastic tubes are recommended for blood bank tests.E) None of the above
F) All of the above

Question 2

The advantages of vacuum collection tubes over a syringe are: 
1. no transfer of blood is necessary
2. it is a closed system
3. the holder can be reused
4. you have more control over the vacuum

Accepted Answer

A)   1 and 2
B)   2 and 4
C)   1, 2, and 3
D)   1, 2, 3, and 4E) A) and D)
F) A) and C)

Question 3

Match the following evacuated tube stopper colors with the tube description.
-Designated for blood bank specimens

Accepted Answer

A)  Black
B)  Pink
C)  Red/gray or gold
D)  Royal blue
E)  TanF) WhiteG) Yellow/gray or orangeH) A) and B)
I) B) and G)

Question 4

The purpose of sodium fluoride in gray stopper tubes is to:

Accepted Answer

A)   prevent hemolysis.
B)   prevent clotting.
C)   preserve glucose.
D)   maintain cellular morphology.E) A) and B)
F) A) and C)

Question 5

The primary antiseptic for routine venipuncture is:

Accepted Answer

A)   iodine.
B)   chlorhexidine.
C)   isopropyl alcohol.
D)   Betadine.E) A) and B)
F) B) and C)

Question 6

Some evacuated tubes are designed not to completely fill.

Accepted Answer

A) True 
 B)False

Question 7

Blood collected in a syringe is transferred to evacuated tubes.

Accepted Answer

A) True 
 B)False

Question 8

Which of the following tubes contains an anticoagulant that does not bind calcium?

Accepted Answer

A)   Light blue
B)   Green
C)   Gray
D)   LavenderE) A) and C)
F) C) and D)

Question 9

Plasma separator tubes (PST) contain the anticoagulant ethylenediaminetetraacetic acid (EDTA).

Accepted Answer

A) True 
 B)False

Question 10

To obtain a serum sample for a stat test on a patient receiving anticoagulant therapy, the recommended tube is:

Accepted Answer

A)   light green.
B)   red/gray or gold.
C)   yellow/gray or orange.
D)   red.E) None of the above
F) A) and D)

Question 11

All of the following tubes contain a separation gel except:

Accepted Answer

A)   green.
B)   light green.
C)   white.
D)   red/gray.E) None of the above
F) B) and D)

Question 12

The tube that will best prevent falsely increased potassium test results is:

Accepted Answer

A)   light green.
B)   green.
C)   red.
D)   gold.E) B) and D)
F) C) and D)

Question 13

Failing to adequately invert a lavender stopper tube after collection will:

Accepted Answer

A)   cause hemolysis.
B)   falsely elevate calcium results.
C)   destroy coagulation factors.
D)   produce a clotted specimen.E) A) and C)
F) A) and B)

Question 14

Match the following evacuated tube stopper colors with the tube description.
-Sedimentation rates

Accepted Answer

A)  Black
B)  Pink
C)  Red/gray or gold
D)  Royal blue
E)  TanF) WhiteG) Yellow/gray or orangeH) A) and B)
I) A) and G)

Question 15

All of the following can decrease the possibility of developing a latex allergy except:

Accepted Answer

A)   wearing powdered gloves.
B)   wearing nonpowdered gloves.
C)   washing the hands as soon as gloves are removed.
D)   wearing cotton gloves.E) None of the above
F) B) and D)

Question 16

Match the following evacuated tube stopper colors with the tube description.
-Contains thrombin

Accepted Answer

A)  Black
B)  Pink
C)  Red/gray or gold
D)  Royal blue
E)  TanF) WhiteG) Yellow/gray or orangeH) B) and C)
I) C) and D)

Question 17

Forcing blood from a syringe into an evacuated tube:

Accepted Answer

A)   prevents the blood from clotting.
B)   can only be done when using a small syringe.
C)   may hemolyze the specimen.
D)   is required when using a transfer device.E) All of the above
F) B) and C)

Question 18

A blood-alcohol test should not be collected in a gray stopper tube.

Accepted Answer

A) True 
 B)False

Question 19

Drawing a lavender stopper tube before an SST tube can cause a falsely:

Accepted Answer

A)   increased calcium value.
B)   decreased glucose value.
C)   decreased calcium value.
D)   increased glucose value.E) All of the above
F) A) and B)

Question 20

Match the following evacuated tube stopper colors with the tube description.
-Rubber stoppers are specially formulated

Accepted Answer

A)  Black
B)  Pink
C)  Red/gray or gold
D)  Royal blue
E)  TanF) WhiteG) Yellow/gray or orangeH) B) and E)
I) A) and B)

Exam 8: Venipuncture Equipment

To obtain a serum sample for a stat test on a patient receiving anticoagulant therapy, the recommended tube is:

Correct AnswerverifiedShow Answer

The primary antiseptic for routine venipuncture is:

Correct AnswerverifiedShow Answer

Match the following evacuated tube stopper colors with the tube description. -Contains thrombin

Correct AnswerverifiedShow Answer

The advantages of vacuum collection tubes over a syringe are: 1. no transfer of blood is necessary 2. it is a closed system 3. the holder can be reused 4. you have more control over the vacuum

Correct AnswerverifiedShow Answer

All of the following tubes contain a separation gel except:

Correct AnswerverifiedShow Answer

Plasma separator tubes (PST) contain the anticoagulant ethylenediaminetetraacetic acid (EDTA).

Correct AnswerverifiedShow Answer

Forcing blood from a syringe into an evacuated tube:

Correct AnswerverifiedShow Answer

Some evacuated tubes are designed not to completely fill.

Correct AnswerverifiedShow Answer

The purpose of sodium fluoride in gray stopper tubes is to:

Correct AnswerverifiedShow Answer

The tube that will best prevent falsely increased potassium test results is:

Correct AnswerverifiedShow Answer

Match the following evacuated tube stopper colors with the tube description. -Rubber stoppers are specially formulated

Correct AnswerverifiedShow Answer

A blood-alcohol test should not be collected in a gray stopper tube.

Correct AnswerverifiedShow Answer

The difference between glass and plastic red stopper tubes is that the:

Correct AnswerverifiedShow Answer

All of the following can decrease the possibility of developing a latex allergy except:

Correct AnswerverifiedShow Answer

Failing to adequately invert a lavender stopper tube after collection will:

Correct AnswerverifiedShow Answer

Blood collected in a syringe is transferred to evacuated tubes.

Correct AnswerverifiedShow Answer

Match the following evacuated tube stopper colors with the tube description. -Sedimentation rates

Correct AnswerverifiedShow Answer

Drawing a lavender stopper tube before an SST tube can cause a falsely:

Correct AnswerverifiedShow Answer

Match the following evacuated tube stopper colors with the tube description. -Designated for blood bank specimens

Correct AnswerverifiedShow Answer

Which of the following tubes contains an anticoagulant that does not bind calcium?

Correct AnswerverifiedShow Answer

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