Nephrotoxic

Nephrotoxicity is toxicity in the kidneys. It is a poisonous effect of some substances, both toxic chemicals and medications, on renal function. There are various forms, and some drugs may affect renal function in more than one way. Nephrotoxins are substances displaying nephrotoxicity.

Nephrotoxicity should not be confused with the fact that some medications have a predominantly renal excretion and need their dose adjusted for the decreased renal function (e.g., heparin).

The nephrotoxic effect of most drugs is more profound in patients already suffering from kidney failure.

Drug-induced glomerular disease is not common but there are a few drugs that have been implicated. Glomerular lesions occur primarily through immune-mediated pathways rather than through direct drug toxicity.

Nephrotoxicity is usually monitored through a simple blood test. A decreased creatinine clearance indicates poor renal function. Normal creatinine level is between 80 - 120 μmol/L. In interventional radiology, a patient's creatinine clearance levels are all checked prior to a procedure.

Serum creatinine is another measure of renal function, which may be more useful clinically when dealing with patients with early kidney disease.

The word nephrotoxicity (/ˌnɛfroʊtɒkˈsɪsᵻti/) uses combining forms of + + , yielding "kidney poisoning".

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