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Green urine- Is it something alarming ?

Description

A 29 year old female, diagnosed to have severe COVID 19 related pneumonia, was referred to our centre for further care. On Day 2 of admission in our intensive care unit her urine colour abruptly appeared greenish which was alarming. Upon considering the various causes and going through the referral summary, to our surprise we found that she received intravenous methylene blue as a part of Covid 19 management 48hrs prior. Hence we diagnosed it to be methylene blue related green urine, which is a self resolving benign entity. A possible cause of the production of green urine is mixing of blue coloured methylene blue dye metabolites with bilirubin pigments in urine giving it a greenish hue. Patient was reassured.

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