Urinalysis & Body Fluids questions with correct answers

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 using a dipstick D. measure the total volume - Answer measure the total volume 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 - Answer exposed to light A clean-catch urine is submitted to the laboratory for routine urinalysis and culture. The routine urinalysis 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 supernatant cultured B. be rejected due to time delay C. not be cultured if no bacteria are seen D. be processed for culture only if the nitrate is positive - Answer be rejected due to the time delay Which of the following urine results is most apt to be changed by proloinged exposure to light? A. pH