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BOC Urinalysis

Urinalysis: Physical Examinaiton

QuestionAnswer
A patient with uncontrolled diabetes mellitus will most likely have: pale urine with a high specific gravity. Due to polyuria and increased glucose in urine.
While performig and analysis of a bay's urine, the technologist notices the specimen to have a "mousy" odor. Of the following substances that may be excreted, the one that most characteristically produces this odor is: phenylpyruvic acid. Phenylketonuria is a genetic disorder that results in a urine with a mousy odor. Acetone has a fruity odor, Bacteria can produce ammonia odor. Porphyrin has no odor.
An ammonia-like odor is characteristically associated with urine from patients who: have an infection with Proteus spp. Proteus spp. is urease positive. Proteus excrete urease, and urease breaksdown ammonia.
Urine that develops as a port wine color after standing may contain: porphyrins. Melanin is black, bilirubin is amber/brown.
Acid urine that contains hemoglobin will darken on standing die to the formation of: methemoglobin.
Urine from a 50-year-old man was noted to turn dark red on standing. This change is caused by: porphyrins.
The clarity of a urine sample should be determined: following thorough mixing of the specimen.
Milky urine from a 24 year old woman would most likely contain: many WBCs or (sperm)
A brown-black urine would most likely contain: melanin. Bile is green/brown.
The yellow color of urine is primarily die to: The only normal pigment is urochrome.
Red urine may be due to: Myoglobin.
Urine osmolality is related to: specific gravity. Both measure the solutes in a urine.
Urine specific gravity is an index of the ability of the kidney to: concentrate the urine. Specific gravity relates to H2O ONLY.
Osmolality is a measure of: dissolved particles, including ions.
To prepare a solution appropriate for quality control of the refractometer, a technician should use: NaCl with a specific gravity of 1.022.
A urine's specific gravity is directly proportional to its: dissolved solids.
Use of a reftactometer over a urinometer is preferred due to the fact that the refractometer uses: a small volume of urine and compensates for temperature.
The method of choice for performing a specific gravity measurement of urine following administration of x-ray contrast dyes is: reagent strip because it is not affected by the dye.
Created by: skrr1988