Lab marker · High

High Creatinine: what it means

A Creatinine result above the normal range is considered high. Here is what a raised Creatinine can point to, and when it is worth discussing with a doctor.

Reference range: Men 0.7–1.3 mg/dL; Women 0.6–1.1 mg/dL

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What a high Creatinine can mean

  • Acute kidney injury — dehydration, drug toxicity (NSAIDs, contrast media, certain antibiotics), urinary obstruction.
  • Chronic kidney disease — diabetes, hypertension, glomerulonephritis are the top causes.
  • High muscle mass / heavy meat meal — modest rise without true kidney injury.
  • Some medications — trimethoprim and cimetidine block tubular secretion of creatinine without changing actual filtration.

When to discuss with a doctor

Sustained eGFR <60 (typically pairs with creatinine >1.3 in men, >1.1 in women) is the threshold for chronic kidney disease and warrants a primary-care work-up. Sudden creatinine jumps within days/weeks are acute kidney injury and need urgent evaluation. Mediora.AI plots your trajectory; treatment of CKD is highly individualised and requires a clinician.

Conditions this can relate to

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Mediora.AI is informational - interpretation, not a diagnosis. A single out-of-range value is common and often benign; always discuss decisions with your doctor.