1.48: Urinalysis

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Oval fat bodies are:
1. white cells with fat inclusions
2. degenerated tubular epithelium containing fat
3. globules of free fat
4. fat-filled casts
5. fertilized ova
If a precipitate of amorphous phosphates obscures the sediment in urine, the precipitate can be removed by adding:
1. dilute sodium hydroxide
2. ethanol
3. concentrated nitric acid
4. dilute acetic acid
5. acetone
The action of the Clinitest tablet is based on:
1. the reduction of ferric ions
2. the reduction of cupric ions
3. an enzyme specific for glucose
4. an enzyme specific for reducing sugars
5. the reaction of glucose with o-toluidine
Which of the following analytes react(s) with para-dimethylaminobenzaldehyde to form a cherry red compound?
1. creatinine
2. ketones
3. protein
4. glucose
5. urobilinogin
A healthy individual may occasionally have __ RBC/high powered field in a random urine specimen:
1. zero
2. 2-4
3. 8-10
4. 15-25
5. 25-30
The specific gravity of normal urine is:
1. 1.000 - 1.005
2. 1.005 - 1.020
3. 1.005 - 1.030
4. 1.010 - 1.040
5. 1.05 - 1.07
The nitroprusside test used on dipsticks detects:
1. beta-hydroxybutyric acid
2. creatinine
3. glucose
4. acetoacetic acid
5. blood
The protein test on the Multistix is based on the principle that:
1. protein changes the pH of the test area and therefore the color of the indicator
2. proteins are zwitterions and change the charge on the buffer
3. the buffer changes the charge on the proteins causing them to form colored complexes
4. at a fixed pH certain indicators will have one color in the presence of protein and another in the absence of protein
5. proteins precipitate at high pH

Answer

b (p. 1104)
d (p. 1097 see table)
b (p. 1099-1100)
e (p. 1100)
b (p. 1013)
c (p. 1097)
d (p. 1100)
a (p. 1099)