Urine may be colored yellow to green for a number of reasons.
Yellow coloration of the urine normally occurs because of excretion of urochrome. This color may be more intense with:
(1) starvation
(2) thyrotoxicosis (increased metabolic rate)
(3) fever (increased metabolic rate)
Additional causes of a yellow color:
(1) riboflavin
(2) infusion of fluorescein sodium
(3) mepacrine
Causes of a yellow-green color:
(1) ingestion of foods rich in carotenes
(2) methylene blue
Causes of a green urine:
(1) amitriptyline
(2) biliverdin
(3) methocarbamol
(4) conversion of a blue colored compound to green by urochrome
(5) chlorophyll
(6) propofol
Causes of a yellow-brown color:
(1) aminosalicylic acid
(2) bilirubin
(3) bismuth
(4) mercury
(5) sulfonamides
(6) nitrofurantoin
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Specialty: Nephrology, Clinical Laboratory
ICD-10: ,
