PRETEST on Urinalysis

The primary chemical constituents of normal

urine are:

• Protein, sodium, and water

• Urea, water, and protein

• Urea, chloride, and water

• Urea, bilirubin, and glucose

An unidentified fluid is received in the laboratory with

a request to determine if the fluid is urine or another

body fluid. Using routine laboratory tests, what tests

would determine that the fluid is most probably urine?

• Glucose and ketones

• Urea and creatinine

• Uric acid and amino acids

• Protein and amino acids

A patient presenting with polyuria, nocturia, polydipsia,

and a high urine specific gravity is exhibiting

symptoms of what disorder?

• Diabetes insipidus

• Diabetes mellitus

• Urinary tract infection

• Uremia

A urine specimen for routine urinalysis would be

rejected by the laboratory because:

• The specimen had been refrigerated

• More than 50 mL was in the container

• The specimen and accompanying requisition did

  not match

• The label was placed on the side of the container

An unpreserved specimen collected at 8 a.m. and

remaining at room temperature until the afternoon

shift arrives can be expected to have:

1. Decreased glucose and ketones

2. Increased bacteria and nitrite

3. Decreased pH and turbidity

4. Increased cellular elements

• 1, 2, and 3

• 1, 2, and 4

• 1 and 2 only

• 4 only

Tags

NGSS.HS-LS2-3

NGSS.HS-LS2-5

What three changes will affect the results of the

microscopic examination of urine if it is not tested

within 2 hours?

• Decreased bacteria, decreased red blood cells,

  decreased casts

• Increased bacteria, increased red blood cells,

  increased casts

• Increased bacteria, decreased red blood cells,

  decreased casts

• Decreased bacteria, increased red blood cells,

  increased casts

What is the specimen of choice for routine urinalysis?

• Fasting specimen

• First morning specimen

• Random specimen

• 24-Hour specimen

A negative urine pregnancy test performed on a random

specimen may need to be repeated using a:

• Clean-catch specimen

• Fasting specimen

• First morning specimen

• 24-Hour specimen

Cessation of urine flow is termed:

• Anuria

• Azotemia

• Diuresis

• Dysuria

Three types of urine specimens that would be acceptable

for culture to diagnose a bladder infection

include all of the following except:

• Catheterized

• Midstream clean-catch

• Random

• Suprapubic aspiration