Alpha Fetoprotein
Label Mnemonic: AFP
Epic Lab Code: LAB554
Downtime Form: A-1a General Laboratory Requisition
Chemistry
6240 RCP
356-3527
Specimen(s):
Plasma
Collection Medium:
Plasma Separator Tube 4.5 mL
Alternate Collection Media:
Call laboratory for additional acceptable specimen collection containers.
Minimum:
3 mL whole blood in light green top tube or TWO Microtainer® devices for pediatric patients.
Testing Schedule:
24 hrs/day, 7 days a week, including holidays.
Turn Around Time:
1 hour (upon receipt in laboratory)
Reference Range:
All units in ng/mL Age Male Female ------ ------------- ------------ 0-13 days 5,000 - 105,000 5,000 - 105,000 14-30 days 300 - 60,000 300 - 60,000 1 month 100 - 10,000 100 - 10,000 2 months 40 - 1,000 40 - 1,000 3 months 11 - 300 11 - 300 4 months 5 - 200 5 - 200 5 months 0 - 90 0 - 90 6-11 months 0 - 60 0 - 97 1 year 0 - 17 0 - 41 2 years 0 - 12 0 - 12 3+ years 0 - 9 0 - 9 Reference ranges updated 6/30/2011 by addition of pediatric reference ranges below 3 years old.
Test Limitations:
Hemolysis: No significant interference up to an H index of 2200 (approximate hemoglobin concentration: 2200 mg/dL).

Lipemia: No significant interference up to an L index of 1500 (approximate triglycerides concentration: 3000 mg/dL). Note there is poor correlation between turbidity and triglyceride concentration.

Icterus: No significant interference up to an I index of 65 (approximate conjugated and unconjugated bilirubin concentration: 65 mg/dL).
Methodology:
Electrochemiluminescence Immunoassay
CPT Code:
82105