Deck 5: Equipment

Question 1

Yellow-stoppered tubes:

A) Contain either acid citrate dextrose (ACD)or sodium polyanetholsulfonate (SPS)
B) ACD prevents coagulation and maintains red blood vitality
C) Tubes with SPS may be used for collection of blood culture specimens
D) All of the above

Answer 1

D

Question 2

The proper collection of a blood specimen requires which of the following?

A) Proper collection technique
B) Proper evacuated tube selection
C) Proper needle selection
D) All of the above

Answer 2

D

Question 3

Plasma is defined as:

A) the liquid portion of blood,containing all formed elements
B) the liquid portion of blood,without clotting factors
C) the liquid portion of blood,with clotting factors
D) whole blood

Answer 3

C

Question 4

This evacuated tube contains no additive and results in a specimen that clots,producing a serum specimen that may be used for blood bank or serology testing.

A) Yellow stoppered tube
B) Light blue stoppered tube
C) Lavender stoppered tube
D) Red stoppered tube

Question 5

The proper tube to use for hematology testing such as a complete blood count is a:

A) Lavender stoppered tube
B) Light blue stoppered tube
C) Green stoppered tube
D) Red stoppered tube

Question 6

Tubes with green stoppers contain:

A) Sodium citrate
B) Ammonium heparin
C) EDTA
D) Potassium oxalate

Question 7

Evacuated blood collection tubes should be used before reaching their expiration date to prevent:

A) Failure to collect a full tube as a result of a loss of vacuum
B) Failure of the additive in the tube from working properly
C) Both a and b
D) None of the above

Question 8

The evacuated tube with the gold stopper contains which of the following additives?

A) Dry clot enhancer
B) Calcium inhibitor
C) No additive
D) Chelating agent

Question 9

Choose the best method for needle disposal.

A) Manually recap the needle and place it in appropriate container.
B) Unscrew the needle directly into a puncture-proof container.
C) Use a safety device to cover the needle immediately after use and dispose of the entire needle apparatus into a puncture resistant biohazard device.
D) None of the above is best.

Question 10

To reduce aerosol mist during handling and testing procedures,a tube with a splash guard placed over the rubber stopper has been manufactured.This tube is called a __________.

A) hemostat tube
B) microtainer tube
C) Hemogard tube
D) none of the above

Question 11

Pediatric evacuated tubes generally collect:

A) 3 to 10 mL of blood
B) 2 to 4 mL of blood
C) Less than 1 mL of blood
D) It does not matter how much blood is collected on a pediatric patient

Question 12

This evacuated tube must be filled completely for the resulting specimen to provide accurate test results:

A) Yellow stoppered tubes
B) Lavender stoppered tubes
C) Light blue stoppered tubes
D) Gold stoppered tubes

Question 13

Light blue-stoppered tubes:

A) are used for complete blood count specimens
B) contain sodium citrate as an anticoagulant
C) do not need to be filled to result in proper specimen collection
D) All of the above

Question 14

This evacuated tube contains EDTA as the anticoagulant additive:

A) Light blue stoppered tube
B) Green stoppered tube
C) Red stoppered tube
D) Lavender stoppered tube

Question 15

Serum is defined as:

A) the liquid portion of blood,containing all formed elements
B) the liquid portion of blood,without clotting factors
C) the liquid portion of blood,with clotting factors
D) whole blood

Question 16

As the diameter of the needle increases,the gauge of the needle ___________.

A) remains the same
B) increases
C) decreases
D) none of the above

Question 17

The size of the needle is referred to as the __________________.

A) bevel
B) Hub
C) gauge
D) length

Question 18

The most common needle gauge used for venipuncture is ___________.

A) 21 G
B) 23 G
C) 25 G
D) 18 G

Question 19

Gray stoppered tubes:

A) contain sodium fluoride as an anticoagulant
B) contain potassium oxalate as a glycolysis inhibitor
C) are used for glucose analysis when testing cannot be done immediately
D) all of the above

Question 20

Whole blood contains:

A) all cellular components and plasma
B) plasma and platelets
C) plasma and red cells
D) plasma and white cells

Question 21

What is the purpose of the tourniquet?

A) Stop venous blood flow
B) Increase resistance to venous blood flow
C) Stop arterial flow
D) Increase resistance to arterial blood flow

Question 22

The maximum time allowed for the tourniquet to remain tied on the arm of the patient is:

A) 30 seconds.
B) 1 minute.
C) 5 minutes.
D) 10 minutes.

Question 23

When a microcapillary specimen is collected for blood testing,this device is used to puncture the skin:

A) A multiple draw needle
B) A winged infusion set
C) A lancet
D) None of the above

Question 24

Winged infusion sets are best used for:

A) Routine venipuncture procedures
B) Collecting blood specimens from patients with small or difficult veins
C) Collecting units of blood from donors
D) All of the above

Question 25

The device used to hold the tube during venipuncture is known as:

A) the tube holder
B) the barrel
C) the adapter
D) all of the above