Urinalysis (possible questions with accurate answers)

What time frame can we run a urinalysis within? correct answers fresh urine should be evaluated within 2-4 hours of collection for the most valid results. Ms. D says that we need to run it within the first 30 minutes... What can we evaluate with the urinalysis? correct answers renal function values protein concentrations metabolic functions What is a "complete urinalysis"? correct answers the evaluation of the physical (color, clarity and specific gravity), chemical, and formed element characteristics of urine What are the two preferred methods for urine collection? correct answers cystocentesis catheterization What are the two less useful methods of urine collection? correct answers free-catch bladder expression What should we keep in mind if the only way to get a sample is to do a free catch? correct answers midstream to decrease contamination What kind of abnormalities do we need a NON free catch for? correct answers We need to obtain cysto or catheterized samples for problems related to disease in the kidneys or urinary bladder What are some problems with bladder expression? correct answers possibility of rupturing the bladder if excessive pressure is used or if the bladder wall is compromised. When should we get a urinalysis ideally? correct answers A first morning sample will provide the best evaluation concentrating ability What is the best time to get a u/a to evaluate urine for casts? correct answers first stream of the morning Why do we do the u/a ASAP after collecting the sample? correct answers because cellular element and crystals can deteriorate, making it difficult to recognize them correctly. Plus, crystals can dissolve over time. How long can we postpone running a urinalysis? correct answers a sample can be refrigerated for 6 hours - NO LONGER. What do we have to remember about a sample if it has been refrigerated? correct answers Sample needs to return to room temperature before running any tests on it.