Question
Different chemical, food or pharmaceutical agent exposure can change the color of the urine.
What could cause this patient's urine to turn green?
Answer
Green or greenish-blue color urine can result from exposure to follow substances:
- amitriptyline
- anthraquinones
- chlorophyll breath mints
- flavin derivatives
- blue food dye
- indigo blue
- magnesium salicylate
- methocarbamol
- methylene blue
- phenol
- propofol
- triamterene
The picture came from a patient who received methylene blue after being diagnosed with methemoglobinemia (65%).