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Ophthalmic Technician

Category - Ophthalmic Imaging

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Which blood investigation is mandatory prior to performing fluorescein angiography?

Serum creatinine
Erythrocyte sedimentation rate (ESR)
Serum calcium
Serum electrolytes

Explanation

Answer: A - Serum creatinine is a useful indicator of renal function. Because fluorescein dye is excreted out of the body by the kidneys, it is mandatory to check for normal kidney function. Fluorescein angiography is avoided in those with deranged or compromised kidneys.

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