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HelpTest Code LAB559 Alpha Fetoprotein (AFP) - Tumor
Clinical System Name
Alpha Feto Protein - Tumor
Synonyms
AFP
Sample Requirements
Specimen: Whole blood
Container(s): Gold SST, Red, Gold Microtainer, Lavendar/EDTA, Dark Green/Sodium Heparin, Lt. Green/Lithium Heparin
Preferred Vol: 1.0 mL
Minimum Vol: 1.0 mL
Processing Instructions
Reject due to:
Spin: Y
Aliquot: Y
Temp: 2-8 C
Storage location: CPA refrigerator, FrigD rack. Serum should be removed from separator for storage.
Off-site collection: Spin blood. Transfer serum/plasma to aliquot container. Refrigerate.
Stability
| Specimen Type | Temperature | Time |
|---|---|---|
| serum/plasma | Room temp | 3 d |
| serum/plasma | Refrigerated | 7 d |
| Frozen -20 C | 4 w |
Specimens are stable stored on or off the clot, red blood cells, or separator gel.
Availability
| STAT | Performed | TAT |
|---|---|---|
| N | M-F | 1-4 d |
Performing Laboratory
Seattle Children's Laboratory
Department
Department: Chemistry
Location: Chem West
Phone Number: (206) 987-2617
CPT Codes
82105
Methodology
Method: Chemiluminescent microparticle immunoassay (CMIA) on the Alinity i
Analytical Volume: 0.250 mL serum
Limitations:
Reference Range
Assay was transferred from Ortho Vitros to Abbot Alinity i on Aug 8, 2022. New assay has 20% positive bias.
| Age | Range (ng/mL) |
| <1 mo | >200 |
| 1-6 mo | 10 - 1359 |
| 6mo - 1 yr | <102 |
| 1 yr - 2 yrs | <35 |
| >2 yrs | ≤10 |
Test result is affected by patient's age, activity of certain types of malignant tumors, & pregnancy status of females.