A normal value is 0.8 to 1.4 mg/dL.
Females usually have a lower creatinine than males, because they usually have less muscle mass.
Note: Normal value ranges may vary slightly among different laboratories. Talk to your doctor about the meaning of your specific test results.
What abnormal results mean
Higher-than-normal levels may indicate:
Acute tubular necrosis
Eclampsia(a condition of pregnancy that includes seizures) Glomerulonephritis
- Kidney failure
- Reduced kidney blood flow (shock, congestive heart failure)
- Urinary tract obstruction
Lower-than-normal levels may indicate:
- Muscular dystrophy (late stage)
- Myasthenia gravis
Additional conditions under which the test may be performed:
Alport syndrome Atheroembolic kidney disease
- Chronic kidney disease
- Cushing syndrome
- Dementia due to metabolic causes
Digitalis toxicity Ectopic Cushing syndrome
- Generalized tonic-clonic seizure
Goodpasture syndrome Hemolytic-uremic syndrome (HUS) Hepatorenal syndrome Interstitial nephritis Lupus nephritis Malignant hypertension (arteriolar nephrosclerosis) Medullary cystic kidney disease
Membranoproliferative GN Iand GN II Type 2 diabetes Polymyositis (adult) Prerenal azotemia
- Primary amyloidosis
- Secondary systemic amyloid
- Thrombotic thrombocytopenic purpura
- Wilms' tumor
Review Date: 08/07/2009
Reviewed By: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.