OB-GYN 101
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Urinalysis

Urine Color

Urine is normally pale yellow to amber. Abnormal or unusual colors include:

Color Significance
  Black
  • Alkaptonuria
  Port wine
  • Porphyrins
  • Methemoglobin
  • Hemoglobin
  • Lysol poisoning
  Red-Brown
  • Hemoglobinuria
  • Blood
  • Myoglobinuria
  • Porphyrins
  Red
  • Eating beets
  • Cascara and Senna laxatives
  • Phenazopyridine ingestion
  Orange
  • Concentrated urine
  • Small amounts of bile
  • Phenazopyridine ingestion
  • Oral anticoagulants
  • Ethoxazene
  • Chlorzoxazone
  Yellow-Brown
  • Bilirubin
  • Sulfonamides
  • Nitrofurantoin
  Yellow-Green
  • Bilirubin
  • Pseudomonas
  Green-Blue
  • Methylene blue
  • Amitriptyline
  Smoky
  • Blood

 

 

 

 

Normal Values*

Color

Pale yellow to amber

Turbidity 

Clear to slightly hazy

Specific Gravity

1.015 to 1.025

pH

4.5-8.0

Glucose

Negative

Ketones

Negative

Blood

Negative

Protein

Negative

Bilirubin

Negative

Urobilinogen

0.1-1.0

Nitrate for bacteria

Negative

Leukocyte esterase

Negative

Casts

Negative

Red blood cells

Negative

Crystals

Negative

White blood cells

Negative/Rare

Epithelial cells

Few

*These are general values taken from a variety of sources. The actual normal values may vary from lab to lab and from one type of testing protocol to another.

 

Source: Operational Medicine 2001,  Health Care in Military Settings, NAVMED P-5139, May 1, 2001, Bureau of Medicine and Surgery, Department of the Navy, 2300 E Street NW, Washington, D.C., 20372-5300

OB-GYN 101: Introductory Obstetrics & Gynecology
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