[P] Quiz - Introduction To Urinalysis

Question 1

The average daily output of urine is:

A. 200 mL
B. 500 mL
C. 1200 mL
D. 2500 mL

Answer 1

C. 1200 mL

Question 2

An unidentified fluid is received in the laboratory with a request to determine whether the fluid is urine or another body fluid. Using routine laboratory tests, what tests would determine that the fluid is most
probably urine?

A. Glucose and ketones
B. Urea and creatinine
C. Uric acid and amino acids
D. Protein and amino acids

Answer 2

B. Urea and creatinine

Question 3

The primary inorganic substance found in urine is:

A. Sodium
B. Phosphate
C. Chloride
D. Calcium

Answer 3

C. Chloride

Question 4

A patient presenting with polyuria, nocturia, polydipsia, and a low urine specific gravity is exhibiting symptoms of

A. Diabetes insipidus
B. Diabetes mellitus
C. Urinary tract infection
D. Uremia

Answer 4

A. Diabetes insipidus

Question 5

A patient with oliguria might progress to having:

A. Nocturia
B. Polyuria
C. Polydipsia
D. Anuria

Answer 5

D. Anuria

Question 6

All of the following are characteristics of recommended urine containers except:

A. A flat bottom
B. A capacity of 50 mL
C. A snap-on lid
D. Are disposable

Answer 6

C. A snap-on lid

Question 7

Labels for urine containers are:

A. Attached to the container
B. Attached to the lid
C. Placed on the container prior to collection
D. Not detachable

Answer 7

A. Attached to the container

C. Placed on the container prior to collection (Ito nakalgay sa book)

Question 8

A urine specimen may be rejected by the laboratory for all of the following reasons except the fact that the:

A. Requisition states the specimen is catheterized
B. Specimen contains toilet paper
C. Label and requisition do not match
D. Outside of the container has fecal material contamination

Answer 8

A. Requisition states the specimen is catheterized

Question 9

A cloudy specimen received in the laboratory may have been preserved using:

A. Boric acid
B. Chloroform
C. Refrigeration
D. Formalin

Answer 9

A. Boric acid

C. Refrigeration (book)

Question 10

For general screening the most frequently collected specimen is a:

A. Random one
B. First morning
C. Midstream clean-catch
D. Timed

Answer 10

A. Random one

Question 11

The primary advantage of a first morning specimen over a random specimen is that it:

A. Is less contaminated
B. Is more concentrated
C. Is less concentrated
D. Has a higher volume

Answer 11

B. Is more concentrated

Question 12

. If a routine urinalysis and a culture are requested on a catheterized specimen, then:

A. Two separate containers must be collected
B. The routine urinalysis is performed first
C. The patient must be recatheterized
D. The culture is performed first

Answer 12

B. The routine urinalysis is performed first

D. The culture is performed first (book)

Question 13

If a patient fails to discard the first specimen when collecting a timed specimen the:

A. Specimen must be recollected
B. Results will be falsely elevated
C. Results will be falsely decreased
D. Both A and B

Answer 13

B. Results will be falsely elevated

D. Both A and B (book)

Question 14

The primary cause of unsatisfactory results in an unpreserved routine specimen not tested for 8 hours is:

A. Bacterial growth
B. Glycolysis
C. Decreased pH
D. Chemical oxidation

Answer 14

A. Bacterial growth

Question 15

Prolonged exposure of a preserved urine specimen to light will cause:

A. Decreased glucose
B. Increased cells and casts
C. Decreased bilirubin
D. Increased bacteria

Answer 15

C. Decreased bilirubin

Question 16

Which of the following would be least affected in a specimen that has remained unpreserved at room temperature for more than 2 hours?

A. Urobilinogen
B. Ketones
C. Protein
D. Nitrite

Answer 16

C. Protein

Question 17

Bacterial growth in an unpreserved specimen will:

A. Decrease clarity
B. Increase bilirubin
C. Decrease pH
D. Increase glucose

Answer 17

A. Decrease clarity

Question 18

The most sterile specimen collected is a:

A. Catheterized
B. Midstream clean-catch
C. Three-glass
D. Suprapubic aspiration

Answer 18

D. Suprapubic aspiration

Question 19

19. Which of the following would not be given to a patient prior to the collection of a midstream clean-catch specimen?

A. Sterile container
B. Iodine cleanser
C. Antiseptic towelette
D. Instructions

Answer 19

B. Iodine cleanser

Question 20

Urine specimen collection for drug testing requires the collector to do all of the following except:

A. Inspect the specimen color
B. Perform reagent strip testing
C. Read the specimen temperature
D. Fill out a chain-of-custody form

Answer 20

B. Perform reagent strip testing