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MLS Review- Urinalysis and Body Fluids Test Banks With Solutions
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MLS Review- Urinalysis and Body Fluids Test Banks With Solutions Urine Specimens- Random use: routine urinalysis (UA) collection: anytime other: not ideal since urine may be dilute or contaminated Urine Specimens- First am use: Routine UA collection: upon awakening other: best for screenin...

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  • October 26, 2024
  • 32
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • Urinalysis and Body Fluids
  • Urinalysis and Body Fluids

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MLS Review- Urinalysis and Body Fluids
Test Banks With Solutions

Urine Specimens- Random use: routine urinalysis (UA)


collection: anytime

other: not ideal since urine may be dilute or contaminated




Urine Specimens- First am use: Routine UA


collection: upon awakening

other: best for screening- most concentrated




Urine Specimens- 2 hr postprandial use: Diabetes mellitus monitoring


collection: 2hr after eating

other: best for detecting glycosuria




Urine Specimens- 24-hr use: Quantitative chemistry tests




collection: Discard 1st void on day 1 & note time.

Collect all urine for next 24 hr, including first void at same time on day 2

, MLS Review- Urinalysis and Body Fluids
Test Banks With Solutions

other: Improper collection is common source of error. Refrigerate or keep on ice. Preservatives

required for some tests.




Urine Specimens- Clean Catch use: routine, culture


collection: Cleanse external genitalia & collect midstream in sterile cup

other: less contamination. do culture before UA




Urine Specimens- Catheterized use: culture


collection: catheter inserted into urethra

other: avoids contamination




Urine Specimens- Suprapubic aspiration Use: culture


collection: needle inserted through abdomen into bladder

other: avoids contamination




Normal Daily Urine Volume 600ml - 2000ml (average 1,200-1,500mL)

, MLS Review- Urinalysis and Body Fluids
Test Banks With Solutions
Normal Day to Night ratio (urine) 2:1-3:1




exocrine function of kidney elimination of metabolic waste products




Diuresis increase urine production




Polyuria excessive production of urine




Adult: >2,500mL daily

Children: 2.5-3mL/kg/day




Oliguria Decreased urine output




Adult: <400mL/day

Children: <0.5mL/kg/hr

Infants: <1mL/kg/hr

, MLS Review- Urinalysis and Body Fluids
Test Banks With Solutions
Anuria no urine production




Normal Urine color yellow due to urochrome




Dilute urine color colorless, pale yellow




Concentrated Urine color Dark yellow, amber




Bilirubin urine color Amber, orange, yellow-green; yellow foam on shaking




Urobilin Urine Color Amber, orange; no yellow foam on shaking




Homogentisic acid Normal on voiding; brown or black on standing




Melanin brown or black standing




Methemoglobin brown or black

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