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20 Cards in this Set
- Front
- Back
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_____ mL of urine is needed for centrifugation for urine sedimentation.
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6 mL
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The ideal method of urine collection is ________?
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Cystocentesis
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What can be seen when examining the urine sediment on low power?
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Casts and Epithelial cells
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Identify the element pictured
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Red Blood Cell Cast
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Identify the primary element pictured
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Struvite Crystals or Triple Phosphate Crystals
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Monohydrate Calcium Oxalate Crystals are typically associated with what toxicity
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Ethylene Glycol
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A cell that is large and flat, has angular sides and small nuclei. Cell also originates from the distal 1/3 of the urethra, prepuce, and vagina. Large flat cell with angular sides and small nuclei that originates from the distal 1/3 of the urethra, vagina, or prepuce.
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Squamous Epithelium
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Explain how casts are formed in the kidneys.
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Casts are formed in the renal tubules. This is where the secreted protein precipitates due to greater acidity of the urine in the tubules.
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Which cast indicates chronic, severe, degeneration of the renal tubules?
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Waxy Casts
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What artifacts other than casts, crystals, or red or white blood cells be found when examining urine sediment under the microscope?
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Mucus threads, spermatozoa, fat droplets, hair, other misc. artifacts
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White blood cell casts are indicative of __________.
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Pylonephritis
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Which cast that when seen in low numbers is considered normal?
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Hyaline Casts
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Casts that are formed in the renal tubules usually take what shape?
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The form of the tubule the cast was formed in.
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Renal epithelial cells originate from
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the renal tubules.
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What type of crystals may be seen with renal tubular dysfunction?
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Cystine Crystals
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Epithelial cells that originate from the renal pelvis, bladder, proximal urethra or ureters are
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Transititional epithelial cells
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This crystal may be present in urine with portacaval shunts.
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Ammonium Biurate
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What are the two urine stains that are used when staining urine sediment?
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SediStain and or New-Methylene Blue
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When centrifuging urine for microscopic examination, how long should the urine be spun at what speed?
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3 - 6 minutes at 1,000 - 2,000 rpm
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What time of the day is best for collecting urine?
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First urine in the morning.
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