Urinalysis & Body Fluids Exam 2024 Questions & Answers 100% Accurate!

Urinalysis & Body Fluids Exam 2024 Qu1. After receiving a 24-hour urine for quantitative total protein analysis, the technician must first: a: subculture the urine for bacteria b: add the appropriate preservative c: screen for albumin with a dipstick d: measure the total volume - ANSWERSd: measure the total volume; Measure the total volume of the sample before removing an aliquot. To calculate the total protein, measure the protein of an aliquot to learn the mg/dL. Then multiply that answer by the number of dL in the 24-hour collection. False results in urobilinogen testing may occur if the urine specimen is: a: exposed to light b: adjusted to a neutral pH c: cooled to room temperature d: collected in a nonsterile container - ANSWERSa: exposed to light; Urobilinogen is degraded by light. A clean-catch urine is submitted to the laboratory for routine urinalysis and culture. The routine analysis is done first, and 3 hours later, the specimen is sent to the microbiology department for culture. The specimen should: a: be centrifuged and the supernantant cultured b: be rejected due to the time delay c: not be cultured if no bacteria are seen d: be processed for culture only if nitrite is positive - ANSWERSb: rejected due to the time delay; It is common practice to share samples between the microbiology department and urinalysis. Ideally, the culture is set up first to prevent contamination. If that is not feasible timewise, the sample should be aliquotted using aseptic technique, and refrigerated until it can be cultured. which of the following urine results is most apt to be changed by prolonged exposure to light? a: pH b: protein c: ketones d: bilirubin - ANSWERSd: bilirubin; Bilirubin and urobilinogen are degraded by light, the other analytes will not be affected. estions & Answers 100% Accurate!