Home » Test Directory » IgA Subclasses

IgA Subclasses QIGASC

Method(s)

Immunoturbidimetry

Components

IgA1, IgA2, and IgA, Serum

Collect

One 5 mL gold (SST) top tube.

Transport

2 mL serum ambient (Min: 1 mL).

Patient Preparation: Fasting preferred

Stability

Ambient: 5 days

Refrigerated: 15 days

Frozen: 30 days

Unacceptable Conditions

Schedule

Sun, Thu; Report available: 4-7 days

CPTCode

82784, 82787 x2

Notes

Performing Laboratory-Quest Diagnostics-Chantilly VA

IgA1
6-11 months	1-115 mg/dL
1 year	3-120 mg/dL
2 years	7-132 mg/dL
3 years	11-143 mg/dL
4-7 years	23-175 mg/dL
8-11 years	33-204 mg/dL
12-17 years	47-249 mg/dL
Greater than or equal to 18 years	46-378 mg/dL
IgA2
6-11 months	0-19 mg/dL
1 year	0-23 mg/dL
2 years	1-23 mg/dL
3 years	1-25 mg/dL
4-7 years	2-33 mg/dL
8-11 years	2-37 mg/dL
12-17 years	4-50 mg/dL
Greater than or equal to 18 years	13-91 mg/dL
IgA, Serum
Cord Blood	1-3 mg/dL
1-28 days	2-40 mg/dL
1-3 months	3-40 mg/dL
4-6 months	7-47 mg/dL
7-11 months	12-53 mg/dL
1 year	20-73 mg/dL
2 years	20-99 mg/dL
3-5 years	22-140 mg/dL
6-8 years	31-180 mg/dL
9-11 years	33-200 mg/dL
12-16 years	36-220 mg/dL
17-60 years	47-310 mg/dL
Greater than or equal to 61 years	70-320 mg/dL