Tag: Angiography

The fluorescence lifetime of fluorescein is an incredibly brief 3–4 nanoseconds, while its pharmacological life within the body stretches across days. This significant difference is key to understanding this versatile molecule's dual nature and what is the lifetime of fluorescein in different contexts.

Fluorescein is an indispensable diagnostic dye, used widely in procedures like retinal angiography, where it can appear in the central retinal artery within 7 to 14 seconds of intravenous injection. Yet, answering the question of what is the half life of fluorescein is more complex than providing a single number, as its clearance involves a biphasic process with distinct elimination rates for both the parent drug and its primary metabolite.

Used extensively in modern diagnostic medicine, Omnipaque (iohexol) is an iodinated contrast agent designed to enhance the visibility of internal body structures during medical imaging. In fact, it is relied upon by radiologists and physicians worldwide to improve the clarity of images from a variety of scans, leading to more accurate diagnoses.