Phlebotomy Essentials Questions To Chapter 7

Front 1

Which additive prevents glycolysis?

Back 1

a. EDTA

b. Heparin

c. Potassium oxalate

d. Sodium fluoride

Hint 1

d. Sodium fluoride

Front 2

The following supplies were gathered for a routine venipuncture. Which item is incorrect?

Back 2

a. ETS tubes

b. Iodine swab

c. Safety needle

d. Tourniquet

Hint 2

a. ETS tubes

Front 3

Which of the following tubes can be used to collect a serum specimen?

Back 3

a. Light-blue top

b. Green top

c. PST

d. Red top

Hint 3

d. Red top

Front 4

A tourniquet is used in venipuncture to:

Back 4

a. concentrate the blood specimen.

b. find and enter veins more easily.

c. keep the vein from collapsing.

d. all of the above.

Hint 4

b. find and enter veins more easily.

Front 5

You are about to perform routine venipuncture
on a patient with no known allergy to antiseptics. Which of the following substances
would you use to clean the site?

Back 5

a. 5.25% sodium hypochlorite
b. 70% isopropyl alcohol
c. Antibacterial soap and water
d. Povidone–iodine

Hint 5

b. 70% isopropyl alcohol

Front 6

Which of the following needles has the largest
diameter?

Back 6

a. 18 gauge

b. 20 gauge

c. 21 gauge

d. 23 gauge

Hint 6

a. 18 gauge

Front 7

What causes evacuated tubes to fill with blood automatically?

Back 7

a. Arterial blood pressure
b. Fist pumping by the patient
c. Pressure from the tourniquet
d. Premeasured tube vacuum

Hint 7

d. Premeasured tube vacuum

Front 8

Lavender-top tubes are most commonly used to
collect:

Back 8

a. chemistry tests.
b. coagulation specimens.
c. hematology tests.
d. immunology tests.

Hint 8

c. hematology tests.

Front 9

Of the following tubes or containers, which is filled last in the recommended order of draw?

Back 9

a. Blood culture bottle

b. Lavender top

c. Light-blue top

d. Red top

Hint 9

b. Lavender top

Front 10

A butterfly is typically used for:

Back 10

a. coagulation specimens.
b. difficult and hand veins.
c. draws from a basilic vein.
d. all of the above.

Hint 10

b. difficult and hand veins.

Front 11

An antiglycolytic agent:

Back 11

a. enhances coagulation.

b. inhibits thrombin formation.

c. keeps the specimen from clotting.

d. prevents the breakdown of glucose.

Hint 11

d. prevents the breakdown of glucose.

Front 12

Sharps containers do not have to be:

Back 12

a. marked “biohazard.”
b. disposable.
c. puncture-resistant.
d. recyclable.

Hint 12

d. recyclable.

Front 13

Which of the following substances would be the best thing to use to disinfect a blood spill on a lab countertop
prior to cleanup?

Back 13

a. A 1:10 dilution of bleach
b. 70% Isopropyl alcohol
c. Antibacterial soap and water
d. Povidone–iodine swab sticks

Hint 13

a. A 1:10 dilution of bleach

Front 14

This needle is the standard needle for routine venipuncture.

Back 14

a. 20 gauge
b. 21 gauge
c. 22 gauge
d. 23 gauge

Hint 14

b. 21 gauge

Front 15

Needles are color-coded according to:

Back 15

a. expiration date.
b. gauge.
c. length.
d. manufacturer.

Hint 15

b. gauge.

Front 16

The most common, direct, and efficient means of venipuncture is:

Back 16

a. butterfly and tube holder.
b. butterfly and syringe.
c. ETS needle and tube holder.
d. needle and syringe.

Hint 16

c. ETS needle and tube holder.

Front 17

Which of the following would be the best choice of equipment for drawing a small hand vein?

Back 17

a. A 21-gauge needle and syringe
b. A 22-gauge needle and ETS holder
c. A 23-gauge butterfl y and ETS holder
d. A 25-gauge butterfl y needle and syringe

Hint 17

c. A 23-gauge butterfl y and ETS holder

Front 18

Which of the following equipment is required in collecting blood by syringe?

Back 18

a. Multisample needle
b. Tube holder
c. Transfer device
d. Winged infusion set

Hint 18

c. Transfer device

Front 19

Which anticoagulant prevents coagulation by inhibiting thrombin formation?

Back 19

a. EDTA
b. Heparin
c. Sodium citrate
d. Potassium oxalate

Hint 19

b. Heparin

Front 20

Which of the following tubes would typically be used to collect plasma for a stat chemistry specimen?

Back 20

a. Light-blue top
b. Green top
c. Red top
d. Yellow top

Hint 20

b. Green top

Front 21

EDTA is a(n):

Back 21

a. anticoagulant.
b. clot activator.
c. glucose preservative.
d. plasma separator.

Hint 21

a. anticoagulant.

Front 22

A light-blue–topped tube is most often associated with tests in this department.

Back 22

a. Chemistry
b. Coagulation
c. Hematology
d. Serology

Hint 22

b. Coagulation

Front 23

Of the following tubes, which would be filled second from a syringe according to the CLSI recommended order
of draw?

Back 23

a. Gray top
b. Lavender top
c. Light-blue top
d. Green top

Hint 23

c. Light-blue top

Front 24

A PST contains:

Back 24

a. citrate and gel.
b. EDTA and gel.
c. heparin and gel.
d. silica and gel.

Hint 24

c. heparin and gel.

Front 25

Of the following tubes or containers, which is filled first in the ETS order of draw?

Back 25

a. Lavender top
b. Light-blue top
c. PST
d. SPS

Hint 25

b. Light-blue top

Front 26

For which of the following tubes is the blood-to-additive ratio most critical?

Back 26

a. Green top
b. Lavender top
c. Light-blue top
d. Red top

Hint 26

c. Light-blue top

Front 27

Which of the following additives provides a physical barrier to prevent glycolysis?

Back 27

a. EDTA
b. Silica
c. Sodium fluoride
d. Thixotropic gel

Hint 27

c. Sodium fluoride

Front 28

Which of the following tubes contains an anticoagulant that works by binding calcium?

Back 28

a. Green top
b. Light-blue top
c. PST
d. SST

Hint 28

b. Light-blue top

Front 29

What is the purpose of a royal blue–topped tube?

Back 29

a. Minimize trace-element contamination
b. Prevent the breakdown of glucose
c. Prevent the specimen from clotting
d. Protect the specimen from light

Hint 29

a. Minimize trace-element contamination