UA 1 -- Chapter 27 Urinalysis Test Review
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| What gives urine its Color? | Urochrome
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| Colorless Urine | Very dilute
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| Straw - Yellow Urine | Normal
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| Dark Yellow to Amber | Very concentrated
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| Orange | Analgesics; Antibiotics
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| Cloudy Pink, Red, Reddish Brown | Hematuria (intact RBCs); Hemoglobinuria (ruptured RBCs)
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| Yellow-Brown to Yellow-Green | Bilirubin
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| Brown | Oxidized RBCs
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| Black | Presence of melanin, Flagyl and certain hypertensives
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| Green-Blue to Green | Pseudomonas, anti-depressants, Clorets
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| When should you use Non-Sterile containers? | Random UA
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| Specific Gravity (Sp.Gr.) | Renal/kidney's ability to concentrate urine (normal range 1.003-1.030)
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| Urinary analysis can give us information about… | Many systems in the body
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| Renal Threshold | Point at which a substance reaches a blood cocentration high enough for kidneys to start removing it and it is detected in urine
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| What would you do with a specimen a Pt brings into the office in a mayo jar? | Discard, provide with sterile container and request new sample
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| What type of UA is performed if only using a Reagent Strip (dipstick)? | Random
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| What is the purpose of a Clean Catch? | To remove normal flora. Normal flora can impact the test results.
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| Cloudy urine can be present for many reasons. Some of which are… | Presence of bacteria, WBCs, RBCs, protien or lipids, as well as other possible causes.
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| Which test is used to check glucose in urine? | Clinitest -- note that if glucose is high, ketones may also be high.
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| False positive for blood in urine most likely indicates what? | Pt is in menses (menstrual cycle)
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| A Pt that has just worked out will most likely see an increase in what? | Ketones
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| Supernatant | The clear fluid above sediment after centrifugation (spinning)
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| How should you view a cloudy urine specimen? | First mix well then hold up to light source
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| The higher the concentration of urine, the higher the what? | Specific Gravity (Sp.Gr.)
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| What percentage of urine is water? | 95%
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| What are three terms used for expelling urine? | Urination, Micturition, Voiding
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| What is the minimum volume of urine needed for testing? | 10-12 mL
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| When should you refrigerate a urine specimen? | When it cannot be tested within 1-2 hours
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