Urinalysis and Body Fluids Questions and Correct Answers | Latest Update
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Urinalysis and body fluids
Institution
Urinalysis And Body Fluids
What substance is normally found in urine that is principally responsible for its yellow
coloration?
-:- Urochrome
In certain malignant disorders, what substance is found in the urine that turns the urine dark
brown or black on exposure of the urine to air?
-:- Melanin
What is the expecte...
Urinalysis and Body Fluids Questions and
Correct Answers | Latest Update
What substance is normally found in urine that is principally responsible for its yellow
coloration?
✓ -:- Urochrome
In certain malignant disorders, what substance is found in the urine that turns the urine dark
brown or black on exposure of the urine to air?
✓ -:- Melanin
What is the expected pH range of a freshly voided urine specimen?
✓ -:- 4.5 to 8.0
Urine specimens should be analyzed as soon as possible after collection. If urine specimens
are allowed to stand at room temperature for an excessive amount of time, the urine pH
will become alkaline because of bacterial decomposition of...?
✓ -:- Urea
What term is defined as a urine volume:
1. In excess of 2000mL/24hr period?
2. Less than 500mL/24hr period?
3. Completely suppressed?
4. Increased level of dissolved solute?
✓ -:- 1. Polyuria
2. Oliguria
3. Anuria
4. Hypersthenuria
The reagent test strips used for the detection of protein in urine are MOST REACTIVE
to...?
A urine specimen that is being shaken and suspected of having an increased concentration of
WHAT if it exhibits:
1. Yellow foam?
2. White foam?
✓ -:- Normal urine does not form foam on being shaken
1. Yellow foam: increased bilibrubin
2. White foam: increased urine protein
How should controls be run to ensure precision and accuracy of the reagent strips used for
the chemical analysis of the urine?
✓ -:- Pos and Neg controls should be run on daily basis
The colorimetric reagent strip test for protein is able to detect as little as 5-20mg/dL of
protein. What may cause false-positive urine protein reading if pH...?
✓ -:- pH is greater than 8.0
"Isosthenuria" is a term applied to a series of urine specimens from the same patient that
exhibit a...?
What causes this condition?
✓ -:- Fixed Specific Gravity of approximately 1.010
Severe renal damage in which both of diluting and concentrating ability of the kidney have
been severely affected
What is the major ORGANIC and INORGANIC substances found in urine?
✓ -:- Organic: Urea
Inorganic: Na
What is "ketone bodies?"
2|P a g e | G r a d eA + | 2 0 2 0 2 5
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