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Test Code IgA Immunoglobulin A Level

Clinical System Name

Immunoglobulin A Level

Sample Requirements

Specimen: Whole blood

Container(s): Gold SST, Gold Microtainer, Red, Lavender/EDTA, Lt. Green/Lithium Heparin, Dark Green/Sodium Heparin

Preferred Vol: 1.0 mL

Minimum Vol: 0.5 mL

 

Note: Can share volume with IgA, IgG, and IgM.

Processing Instructions

Reject due to

Spin: Y

Aliquot: Y

Temp: 2-8 C

Storage location: CPA refrigerator, FrigA rack.

 

Off-site collection: Spin and aliquot serum/plasma in plastic tube. Send refrigerated.

Stability

Specimen Type Temperature Time
gel separator with serum/plasma Refrigerated 48 h
separated serum/plasma Room temp 2 h
  Refrigerated 8 d
  Frozen -20 C 3 m

 

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

Reference Range

 

Age Male (mg/dL) Female (mg/dL)
1 - 30 days 1 - 17 1 - 16
1 month - 6 months 6 - 47 1 - 49
6 months - 12 months 8 - 89 13 - 75
1 - 3 years 15 - 142 21 - 117
4 - 6 years 50 - 192 39 - 170
7 - 9 years 64 - 209 34 - 181
10 - 12 years 51 - 223 61 - 198
13 - 15 years 35 - 252 68 - 246
16 - 18 years 74 - 261 75 - 267
>18 years 70 - 400 70 - 400

 

Methodology

Method: Nephelometry by Siemens ProSpec

Analytical Volume: 0.250 mL serum/plasma

Limitations: Test is affected by repeated freeze-thaw cycles.  Not affected by hemolysis or icterus.

CPT Codes

82784