Chapter 11

Question 1

When drawing a blood alcohol specimen, it’s acceptable to clean the arm with…

A: benzalkonium chloride
B: isopropyl alcohol
C: methanol prep
D: tincture of iodine

Answer 1

A: Benzalkoniun chloride

Question 2

Which of the following is the most critical part of blood culture collection ?

A: adequately mixing the media vitals
B: antisepsis of the collection site
C: selecting the collection site
D: timing of the second set of cultures

Answer 2

B: antisepsis of the collection site

Question 3

TDM peak concentration may be defined as the

A: highest concentration of the drug during a dosing interval
B: lowest concentration of the drug during a dosing interval.
C: concentration required for maximum drug effectiveness.
D: none of the above.

Answer 3

A: highest concentration if the drug during a dosing interval.

Question 4

In performing a glucose tolerance test, the fasting specimen is drawn at 08:15 hours and the patient finishes the glucose beverage at 08:20 hours. When should the one-hour specimen be collected?

A: 09:15 hours
B: 09:20 hours
C: 09:45 hours
D: 09:50 hours

Answer 4

B: 09:20 hours

Question 5

What color is the stopper of CTAD tube, for what type of test is it used, and why?

A: gray; blood alcohol; inhibits volatilization of alcohol
B: lavender; molecular genetic testing; preserves DNA
C: light blue; coagulation; to inhibit platelet activation
D: orange; special chemisty; to decrease clotting time

Answer 5

C: light blue; coagulation; to inhibit platelet activation.

Question 6

Removing a unit of blood from a patient and not replacing it is used as a treat for

A: arthritis
B: leukemia
C: polycythemia
D: tuberculosis

Answer 6

C: polycythemia

Question 7

Which of the following tests may require special chain-of-custody documentation when the specimen is collected?

A: blood culture
B: cross match
C: drug screen
D: TDM

Answer 7

C: Drug screen

Question 8

Individuals who wish to donate blood in most states must be at least

A: 16 and weigh at least 105 lbs
B: 17 and weigh at least 110 lbs
C: 18 and weigh at least 120 lbs
D: 21 and weigh at least 125 lbs

Answer 8

B: 17 and weigh at least 110 lbs

Question 9

Which of the following tests must have a 9:1 ratio of blood to anticoagulant in the collection tube?

A: two-hour PP
B: blood culture
C: electrolytes
D: protime

Answer 9

D: protime

Question 10

Which of the following tests are collected in a trace element-free tube?

A: ABGs
B: aluminum
C: BUN
D: Hemoglobin

Answer 10

B: aluminum

Question 11

Common chemistry tests performed by POCT Instruments include:

A: Hgb and Hct
B: Na and K
C: PT and PTT
D: T4 and TSH

Answer 11

B: Na and K

Question 12

Which of the following is a test that measures packed cell volume?

A: hCG
B: Hct
C: INR
D: TnT

Answer 12

B: Hct

Question 13

Which test requires 4 special tubes collected using a special order of draw?

A: ETOH
B: OGTT
C: PT/INR
D: TB-Gold

Answer 13

D: TB-Gold

Question 14

Hemochromatosis

A: can be treated by removing blood
B: causes iron deposits in the tissues
C: is sometimes an inherited disorder
D: all of the above

Answer 14

D: all of the above

Question 15

Which is a nonspecific marker of systemic inflammation?

A: ACT
B: BNP
C: CRP
D: TnT

Answer 15

C: CRP

Question 16

A patient undergoing a GTT vomits 1 hour and 5 minutes after drinking the glucose beverage. Which action should the phlebotomist take?

A: continue the test, and note on the laboratory slip that the patient vomited and at what time
B: discontinue the test, and write on the requisition that the patient vomited the drink.
C: give the patient another dose of the glucose beverage and continue with the test
D: notify the nurse/physician immediately to see if the test should be rescheduled

Answer 16

D: notify the nurse/physician immediately to see if the test should he rescheduled.

Question 17

When does blood glucose level in normal individuals typically peak after glucose ingestion?

A: in 15 to 20 min
B: in 1/2 hr to 1 hr
C: in 1 to 1 and a 1/2 hr
D: in roughly 2 hrs

Answer 17

B: in 1/2 hr to 1 hr.

Question 18

The definition of toxicology is:

A: A protocol for drug trafficking
B: the science study of poisons
C: the study of drug therapy levels
D: the tracking of illicit drug trade

Answer 18

B: the science study of poisons.

Question 19

Septicemia is..

A: A positive test for transmissable disease
B: bacteria measurement in whole blood
C: fever in which the cause is not known
D: the presence of microbes in the blood

Answer 19

D: the presence of microbes in the blood.

Question 20

Rapid syphilis tests detect

A: clostridium difficile
B: neisseria meningitidis
C: streptococcus pneumoniae
D: treponema pallidum

Answer 20

D: Treponema Pallidum