Explore this test

  • Test Details
  • Lab Values
  • Clinical Significance
  • Treatment Options
DOWNLOAD SPECIMEN PREP FLYER

Explore this test

Test Code 1007

Test Details

Creatinine

Creatinine is the break-down product of creatine phosphate in muscle and is usually produced at a fairly constant rate. Creatinine is filtered by the kidneys and is not re-absorbed to any significant extent.

Methodology

Enzymatic

Patient Preparation

None

Preferred Specimen

1.0 mL serum (0.5 mL minimum) collected in serum separator tube (SST/Tiger Top)

Alternate Specimen

1.0 mL EDTA plasma (0.5 mL minimum) collected in plasma separator tube (Pearl Top)

Transport Temperature

Refrigerated (ship on frozen cold packs)

Stability

Refrigerated:  7 days

Lab Values

Lab Values

Creatinine

Male

  • Low: <0.67
  • Normal: 0.67-1.17 mg/dL
  • High: >1.17 mg/dL

Female

  • Low: <0.51
  • Normal: 0.51-0.95 mg/dL
  • High: >0.95 mg/dL
Test Details
Clinical Significance

Clinical Significance

Creatinine

  • Elevated levels of creatinine may indicate kidney dysfunction.
  • Creatinine is used to evaluate renal function and in monitoring renal dialysis.
Lab Values
Treatment Options

Treatment Options

Creatinine

  • Treatment is based on cause of elevation.
  • Consider additional diagnostic tests as indicated.
Clinical Significance