Test Code CREAT Creatinine, Plasma or Serum

Methodology

Jaffe Picric Acid

Decatur Morgan Hospital-Decatur Campus/Parkway Campus

Submit only 1 of the following specimens:

Plasma

Draw blood in a green-top (lithium heparin) tube(s). Spin down and send 1 mL (pediatric: 0.2 mL) of lithium heparin plasma.

Note: 1. Indicate plasma on request form.
2. Label specimen appropriately (plasma).

Serum

Draw blood in a plain, red-top tube(s) or a serum gel tube(s). Spin down and send 1 mL (pediatric: 0.2 mL) of serum.

Note: 1. Indicate serum on request form.
2. Label specimen appropriately (serum).

Males
0-6 days: 0.3-1.0 mg/dL
7 days-2 years: 0.2-0.6 mg/dL
2-12 years: 0.0-1.0 mg/dL
>12 years: 0.7-1.2 mg/dL

Females
0-6 days: 0.3-1.0 mg/dL
7 days-2 years: 0.2-0.6 mg/dL
2-12 years: 0.0-1.0 mg/dL
>12 years: 0.5-0.9 mg/dL

Critical values (automatic call-back)

0-30 days: ≥1.5 mg/dL

31days-23 months: ≥2.0 mg/dL

2-11 years: ≥2.5 mg/dL

12-15 years: ≥3.0 mg/dL

≥16 years: ≥10.0 mg/dL

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