Urinalysis Questions and Answers Already Passed

Urinalysis Questions and Answers Already Passed What is the initial action a technician should take upon receiving a 24-hour urine sample for quantitative total protein analysis? - A. Initiate bacterial subculture - B. Introduce the appropriate preservative - C. Screen for albumin - D. Measure the total volume In urobilinogen testing, which factor might lead to inaccurate results? - A. Exposure to light - B. Adjustment to a neutral pH - C. Cooling to room temperature - D. Collection in a non-sterile container A clean-catch urine sample is submitted for routine UA and culture. After performing the routine UA, the specimen is sent to the microbiology department 3 hours later. What action should be taken regarding the specimen? 2 - A. Centrifuge and culture the supernatant - B. Reject due to the time delay - C. Refrain from culturing if no bacteria are visible - D. Process for culture only if nitrate is positive Which urine component is most susceptible to alteration with prolonged exposure to light? - A. pH - B. Protein - C. Ketones - D. Bilirubin Why is it recommended to examine urine samples within 1 hour of voiding? - A. Agglutination of RBCs, leukocytes, and casts - B. Increase in urobilinogen and decrease in bilirubin - C. Alkalization due to bacterial contamination - D. Rise in ketones from bacterial and cellular metabolism 3 A urine specimen arrives at the lab 7 hours after collection. Under what condition would it be acceptable for culture? - A. Stored at room temperature - B. Stored at 4-7oC - C. Frozen - D. With a preservative additive How would a urine specimen be impacted by being left at room temperature for 3 hours before analysis? - A. Detection of occult blood - B. Measurement of specific gravity - C. Determination of pH - D. Quantification of protein What could lead to the absence of RBC casts in a urine sample? - A. Staining the specimen - B. Centrifuging an unmixed specimen - C. Agitating the sediment post-decantation