chemical exam of urine Flashcards
how many parameters are in a reagent strip?
10
what are the two major types of reagent strips used in the laboratory?
multistix, chemstrip
the reagent strip must be dipped completely but briefly into a well-mixed specimen at RT?
TRUE
what is the reading time of glucose and bilirubin?
30 seconds
what is the reading time for ketones?
40 seconds
what is the reading time of specific gravity?
45 seconds
what is the parameter that has the longest reading time of 120 seconds?
Leukocyte Esterase (LE)
the reagent strips are refrigerated.
FALSE
the urine specimen must be (centrifuged, uncentrifuged) before dipping to the reagent strip.
uncentrifuged
when is the quality control of reagent strips must be performed?
at the beginning of each shift
what is the pH of a first morning specimen?
pH 5.0-6.0
alkaline tide is found after?
after meals
what is the pH of normal random specimens?
pH 4.5-8.0
the causes of acid urine are the following EXCEPT?
a) diabetes mellitus
b) dehydration
c) monurol
d) renal tubular acidosis
d) renal tubular acidosis
the causes of alkaline urine are the following EXCEPT?
a) cranberry juice
b) hyperventilation
c) urease-producing bacteria
d) vegetarian diet
a) cranberry juice
