Practice Quiz 31

inflammation of

-itis

tumor or swelling

-oma

incision

-otomy

pertaining to

-ous

Which of the following gauge needles is used most often to perform a routine venipuncture using the vacuum tube method

21G

Your physician has requested an electrolyte profile on a patient. The laboratory directory indicates this test requires 4 mL of serum. Which of the following tubes should be used to collect the specimen?

A 10-mL SST

After drawing a blood specimen for an electrolyte profile, the next step is to

Allow the specimen to stand in an upright position for 30-45 minutes

Which of the following is the proper method for identifying a patient before performing a venipuncture?

Ask patient to state his or her full name and DOB

What may occur if the needle is removed from the arm before removing the tourniquet?

Bleeding may occur around the puncture site

Which of the following should NOT be used as a venipuncture site?

Bruised skin an area that is painful to the patient burned skin scarred skin

When performing a capillary puncture, the finger should NOT be squeezed, to avoid

Diluting the blood sample with tissue fluid

An evacuated tube with a lavender stopper contains

EDTA

How is serum obtained?

Form clotted blood that has been centrifuge

Which of the following should be performed if an evacuated tube contains a clot activator?

Gently invert the tube five times after drawing it

Which of the following are characteristics of the brachial artery (located in the antecubital space)?

If punctured, blood is bright red in color Has a more elastic and thicker wall than a vein Pulsates when palpated If punctured, patient feels more than usual amount of pain

If a fibrin clot formed in the serum layer of a blood specimen, it would

Interfere with adequate serum collection

When collecting a blood specimen using the vacuum tube method of venipuncture, venous reflux is prevented by

Keeping the patient's arm in a downward position

All of the following are guidelines that should be followed when assembling equipment and supplies for a venipuncture except

Label each blood tube with one unique patient identifier

When collecting a venous blood specimen to be transported to an outside laboratory for testing, which of the following should be consulted for information on collecting and handling requirements?

Laboratory directory

Which of the following sites can be used to make a skin puncture on an adult?

Lateral part of the third fingertip

What color stopper tube is used to collect a blood specimen for a complete blood cell count (CBC)?

Lavender

All of the following tubes can be used to collect serum except

Lavender-stoppered

All of the following are correct techniques for applying a tourniquet except

Leaving the tourniquet on for a least 3 minutes before drawing the specimen

What color stopper tube is used to collect a blood specimen for a prothrombin time test?

Light blue

The purpose of applying a tourniquet when performing venipuncture is to

Make the patient's veins more visible and easier to palpate

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 procedure?

Moving the needle after it has been inserted into the vein

An evacuated tube with a red stopper contains

Nothing

What may occur if a finger puncture is made that is deeper than 3.1 mm?

Penetration of the bone

An individual who collects blood specimens is known as a(n)

Phlebotomist

On standing, a blood specimen to which an anticoagulant has been added separates into

Plasma, buffy coat, and blood cells

You are performing a venipuncture, and the patient becomes dizzy and is about to faint. Your first priority in this situation should be to

Protect the patient from injury

Which of the following is NOT a method for performing venipuncture?

Retractable lancet method

What position should be used for a venipuncture if a patient appears nervous or has fainted in the past from a venipuncture?

Semi-Fowler

On standing, a blood specimen to which an anticoagulant has NOT been added separates into

Serum and blood cells

Which of the following represents an error in technique when working with evacuated tubes?

Shaking a tube containing an anticoagulant after drawing it

Phlebotomy includes which of the following?

Skin puncture Arterial puncture Venipuncture

On palpation, a scarred vein feels

Stiff and hard

Which of the following may occur if a tourniquet is applied too tightly?

The arterial blood flow may be obstructed. It may be uncomfortable for the patient. Inaccurate test results may occur. The venous blood flow may be obstructed.

What may occur if an angle of less than 15 degrees is used to perform the venipuncture?

The needle may enter the skin above the vein and not puncture it

Why should the veins of the hands be used as a venipuncture site only as a last resort?

The procedure is more uncomfortable for the patient. The hand veins are more susceptible to collapsing. They are more difficult to stick. They have a tendency to roll.

What may occur if an outdated evacuated tube is used to collect the blood specimen?

The tube may no longer have a vacuum

You need to collect a venous blood specimen from a patient to run an FBG. Which of the following would be an inappropriate statement to make to the patient during this procedure?

This procedure will not hurt

Which of the following represents an error in technique when obtaining a capillary blood specimen?

Using the first drop of blood for the test

The size of the evacuated tube you choose to obtain a venous blood specimen depends on the

amount of specimen required for the test

before

ante-

against

anti-

Which of the following techniques can be used to prevent a vein from rolling?

applying firm pressure below and to the side of the vein

cartialge

chondr/o

Which of the following is found in the serum of blood?

glucose, chloride, hormones, antibodies

blood

hemat/o

During the venipuncture procedure, a sudden swelling occurs in the area around the puncture site. You should

immediately remove the tourniquet and then the needle

Hemolysis of a blood specimen results in

inaccurate test results

breakdown

lysis

bone marrow

myel/o

bone

oest/o

vein

phleb/o

Which of the following indicates the correct order of draw for the vacuum tube method of venipuncture?

red, green, lavender, gray

When performing a venipuncture, which of the following techniques represents a violation of the OSHA standard?

removing the plastic holder from the needle for reuse

Which of the following veins is most likely to collapse when performing a venipuncture?

small veins

control, stop

stasis

If you think a vein selected for venipuncture may collapse, you should

use the butterfly method to perform the venipuncture

Which of the following may result in hemolysis of the blood specimen?

using a needle with a small lumen to collect the specimen

Whole blood is obtained by

using a tube containing an anticoagulant

Which of the following represents an error in technique when selecting a vein for venipuncture?

using the thumb to palpate the vein

Which of the following is another name for the butterfly method of venipuncture?

winged infusion method