CHAP 15

Question 1

1. Preexamination errors in POCT include all of the following EXCEPT:
   a. improper storage of test materials
   b. failure to check reagent expiration dates
   c. performing the test too near the patient
   d. performing the test on the wrong patient

Answer 1

c. performing the test too near the patient

Question 2

2. Acceptable QC can ensure all of the following EXCEPT:
   a. correct patient identification
   b. integrity of testing materials
   c. correct performance of the test
   d. correct functioning of the testing device

Answer 2

a. correct patient identification

Question 3

3. Procedural controls that verify that the test kit and added reagents are performing correctly are called:
   a. electronic controls
   b. external controls
   c. internal controls
   d. proficiency testing

Answer 3

c. internal controls

Question 4

4. When performing POCT, the operator must be sure to document results of:
   a. patient tests
   b. quality control
   c. electronic controls
   d. all of the above

Answer 4

d. all of the above

Question 5

5. The most common POCT test performed at home and in the hospital is a:
   a. glucose
   b. bilirubin
   c. strep test
   d. urinalysis

Answer 5

a. glucose

Question 6

6. A waived test performed on the HemoCue analyzer that will indicate whether a patient may have an anemia is:
   a. glucose
   b. hemoglobin
   c. bilirubin
   d. Monotest

Answer 6

b. hemoglobin

Question 7

7. The recommended sample for urine pregnancy testing is a:
   a. random sample
   b. first-morning sample
   c. midstream clean-catch sample
   d. timed sample

Answer 7

b. first-morning sample

Question 8

8. The test used to monitor Coumadin therapy is:
   a. APTT
   b. ACT
   c. PT (INR)
   d. bleeding time

Answer 8

c. PT (INR)

Question 9

9. Errors most commonly associated with incorrect PT(INR) results include all of the following EXCEPT:
   a. failure to adequately cleanse and dry the capillary puncture site
   b. prematurely performing the capillary
   puncture before test strip/cartridge is
   ready to accept the sample
   c. using the first drop of dermal puncture
   blood
   d. inadequate application of specimen

Answer 9

c. using the first drop of dermal puncture
blood

Question 10

10. A POCT analyzer that can perform metabolic chemistry panels is:
    a. Bilichek
    b. Glucometer
    c. Cholestech LDX
    d. I-STAT

Answer 10

d. I-STAT