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The concentration of a normal urine specimen can be estimated by which of the following?
The normal yellow color of urine is produced by:
A yellow-brown specimen that produces a yellow foam when shaken can be suspected of containing:
A urine that turns black after standing may contain:
Specimens that contain intact RBCs can be visually distinguished from those that contain hemoglobin because:
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After eating beets purchased at the local farmers’ market, Mrs. Williams notices that her urine is red, but Mr. William’s urine remains yellow. The Williamses should:
Specimens from patients receiving treatment for urinary tract infections frequently appear:
Freshly voided normal urine is usually clear; however, if it is alkaline, a white turbidity may be present due to:
Microscopic examination of a clear urine that produces a pink precipitate after refrigeration will show:
Under what conditions will a port-wine urine color be observed in a urine specimen?
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Which of the following specific gravities would be most likely to correlate with a dark yellow urine?
Urine specific gravity is equally influenced by the presence of glucose and sodium.
In what circumstance might a sediment be slightly warmed prior to microscopic examination?
A urine specific gravity measured by refractometer is 1.029, and the temperataure of the urine is 14C. The specific gravity should be reported as:
Refractive index compares:
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Refractometers are calibrated using:
A correlation exists between a specific gravity of 1.050 and a:
An alkaline urine turns black upon standing, develops a cloudy white precipitate, and has a specific gravity of 1.012. The major concern about this specimen would be:
The reading of distilled water by the refractometer is 1.003. You should:
A urine specimen with a specific gravity of 1.008 has been diluted 1:5. The actual specific gravity is:
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The method for determining a urine specific gravity that is based on the principle that the frequency of a sound wave entering a solution changes in proportion to the density of the solution is:
A specimen with a specific gravity of 1.005 would be considered:
Specific gravity is of more diagnostic value than osmolarity in evaluating renal concentration ability.
A strong odor of ammonia in a urine specimen could indicate:
The microscopic of a cloudy amber urine is reported as rare WBCs and epithelial cells. What does this suggest?
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A specimen with a strong ammonia odor and a heavy white precipitate when it arrives in the laboratory may require:
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