Deck 4: Phlebotomy: Collecting and Processing Blood

Question 1

A popular at-home point-of-care test (POCT)is for ____ testing.

A) thyroid
B) glucose
C) electrolyte
D) cholesterol

Answer 1

glucose

Question 2

The pale,straw-colored fluid visible in clotted blood in a test tube is:

A) plasma.
B) serum.
C) fibrinogen.
D) fibrin.

Answer 2

serum.

Question 3

The draw volume of blood into an evacuated tube can be affected at greater than ____ feet of altitude.

A) 2000
B) 5000
C) 15,000
D) 25,000

Answer 3

5000

Question 4

The first critical step in blood collections is:

A) introduction of the phlebotomist.
B) a brief explanation of the procedure and tests to be performed.
C) patient identification.
D) a check of test requisitions for ordered tests.

Question 5

Major errors in the identification of patients can include:

A) absent wristband.
B) erroneous information on the wristband.
C) partially missing information on the wristband.
D) all of the above.

Question 6

Most mistakes in laboratory testing involve ____ errors.

A) preanalytical (pre-evaluation)
B) analytical (evaluation)
C) postanalytical (post-evaluation)
D) a combination of any of the above

Question 7

Blood for the screening of newborns is for certain conditions such as:

A) phenylketonuria.
B) hypothyroidism.
C) galactosemia.
D) all of the above.

Question 8

The anticoagulant of choice for blood cell counting and sizing is:

A) EDTA.
B) sodium citrate.
C) heparin.
D) sodium fluoride.

Question 9

Environmental factors that can affect the quality of evacuated tubes can be:

A) sunlight.
B) ambient temperature.
C) humidity.
D) all of the above.

Question 10

The most common cause of an abnormal appearance of a collected blood specimen is:

A) hemolysis.
B) icterus (jaundice).
C) lipemia.
D) excess anticoagulant.

Question 11

The shelf life of an evacuated tube is determined by:

A) stability of the additive.
B) vacuum retention.
C) clinical use of the additive.
D) both a and b.

Question 12

Quality assessment:

A) requires establishing policies that maintain and control processes involving the patient.
B) requires establishing policies that maintain and control the process of laboratory analysis of specimens.
C) regulates collection, transportation, and processing of patient specimens.
D) all of the above.

Question 13

The first tier of infection control for health care professionals is to use ____ precautions.

A) standard
B) contact
C) airborne
D) droplet

Question 14

Specimens must reach the laboratory for testing in less than:

A) 30 minutes.
B) 1 hour.
C) 2 hours.
D) 8 hours.

Question 15

The relationship between patients and physicians and other health care professionals is described in the recently published:

A) patient's bill of rights.
B) patient care partnership document.
C) Clinical Laboratory Improvement Amendment (CLIA) regulations.
D) both a and b.

Question 16

The most frequently analyzed specimen in the clinical laboratory is:

A) urine.
B) body fluids.
C) blood.
D) feces.

Question 17

For a patient to be in a fasting state,he or she must abstain from food and liquids other than water for ____ hours.

A) 2 to 4
B) 4 to 8
C) 8 to 12
D) 12 to 24

Question 18

When collecting blood in multiple evacuated tubes,the correct order of draw should start with:

A) light blue (citrate).
B) yellow (blood cultures).
C) lavender (EDTA).
D) white.