Clinical Microscopy Flashcards
What are the three processes involved in urine formation?
- Glomerular filtration
- Tubular reabsorption
- Tubular secretion
What test is done to diagnose the cause of urinary tract infection and serves as a quick indicator of an individual’s glucose status and hepatic or biliary function?
Urinalysis
What composes urine?
95% water
5% solutes (organic or inorganic)
What is the normal range of urine volume?
600-2000 mL
What condition pertains to increased excretion of urine at night?
Nocturia
What condition pertains to the complete cessation of urine flow?
Anuria
A urine test should be done within ___ of collection.
2hrs
What should you do if urine testing is delayed?
Refrigerate the specimen
What is the ideal temperature to preserve a urine specimen for 2hrs?
20-24* C (room temp.)
What is the ideal temperature to preserve a urine specimen for 8hrs?
2-8* C (at the refrigerator)
What type of urine collection requires a chain of custody?
Drug specimen collection
What is the required urine temperature for drug test specimens within 4 minutes after collection?
32.5-37.7* C
What is the normal pH of urine?
4.5-8.0
What disease could be present if a urine specimen smells like maple syrup?
Maple syrup urine disease (MSUD)
What disease could be present if a urine specimen smells ammoniacal?
Urinary tract infection (UTI)
