Red Urine
Dip stick
- Haem positive
- Haematuria
- Haemaglobinuria (haemolysis)
- Myoglobinuria (rhabdomyolysis)
- NB false neg: formalin (urine preservative), Vit C
- NB false pos: alkaline urine, hydrogen peroxide (dont use to clean perineum)
- Haem negative
- Drugs
- Chloroquine
- Deferoxamine
- Ibuprofen
- Iron sorbitol
- Metronidazole
- Nitrofurantoin
- Phenazopyridine (Pyridium)
- Phenolphthalein
- Phenothiazines
- Rifampin
- Salicylates
- Sulfasalazine
- Dyes
- Beets
- Blackberries
- Food coloring
- Rhubarb
- Metabolites
- Homogentisic acid
- Melanin
- Methemoglobin
- Porphyrin
- Tyrosinosis
- Urate crystals
- Drugs