Urine Color

• Colorless: recent fluid consumption
• Pale Yellow: Polyuria
• Pale Yellow: Diabetes insipidus and Diabetes mellitus
• Pale Yellow: Dilute random specimen
• Dark Yellow: Concentrated specimen
• Dark yellow: dehydration
• Dark yellow: bilirubin
• Dark yellow: carotene
• Orange-yellow: Phenazopyridine
• Yellow-Green: bilirubin oxidized to biliverdin
• Blue-Green: Pseudomonas infection
• Blue-Green: Urinary indican
• Blue-Green: Medications
• Blue-Green: ingestion of clorets 10 at a time
• Purple: Klebsiella or Providencia species
• Pink or Red: RBCs
• Hematuria: blood in urine
• Hemoglobinuria: red and clear hemoglobin
• Myoglobinuria: red and clear myoglobin
• Pink or Red: menstrual contamination
• Rifampin: medication for TB
• Portwine: porphyrin
• Brown or Black: Methemoglobin
• Brown or Black: Melanin
• Brown or Black: Homogentisic acid
• Methemoglobin: acidic urine after standing
• Homogentisic acid: alkaline urine after standing