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HelpTest Code LAB810 Alpha 1 Antitrypsin
Clinical System Name
Alpha 1 Antitrypsin
Synonyms
A1 ATRY QN
A1AT
Alpha 1 Antitrypsin Quantitative
Sample Requirements
Specimen: Whole blood
Container(s): Gold SST, Gold Microtainer, Red
Preferred Vol: 2.0 mL
Minimum Vol: 1.0 mL
Note: Can share volume with any other serum testing performed on the ProSpec
Processing Instructions
Reject due to: gross lipemia
Spin: Y
Aliquot: Y
Temp: 2-8 C
Storage location: CPA refrigerator, FrigA rack.
Off-site collection: Spin and aliquot 0.5mL serum in plastic tube. Send refrigerated.
Stability
| Specimen Type | Temperature | Time |
|---|---|---|
| gel separator with serum | Refrigerated | 48 h |
| separated serum | Room temp | 2 h |
| Refrigerated | 8 d | |
| Frozen -20 C | 1 y |
Availability
| STAT | Performed | TAT |
|---|---|---|
| N | M, W, F, day shift | 1-3 d |
Performing Laboratory
Seattle Children's Laboratory
Department
Department: Chemistry
Location: Chem East
Phone Number: (206) 987-2617
CPT Codes
82103
Methodology
Method: Nephelometry by Siemens ProSpec
Analytical Volume: 0.4 mL serum (absolute minimum is 0.250 mL serum)
Limitations: Test is affected by lipemia and repeated freeze-thaw cycles. Not affected by hemolysis or icterus.
Reference Range
125 - 418 mg/dL