Immunoglobulin A

Alphabetical Test listing

Immunoglobulin A-1141

Test name:

Immunoglobulin A

Test number:

1141

Excellian order number:

82784.3

Abbreviation:

IGA

Alternate names:

IgA

Specimen type:

Serum

Collection container:

Gold serum separator (SST) tube

Volume:

1.0 mL

Minimum volume:

0.2 mL (2 microtainers)

Collection instructions:

Immediatley following collection, mix sample by gently inverting 5 times

Processing instructions:

1. Allow sample to clot for a minimum of 30 minutes
2. Spin within two (2) hours of sample collection

Transport container:

Gold serum separator (SST) tube

Alternate collection container:

Red serum vial/tube - 5 mL

Alternate processing instructions:

Allow sample to clot
Spin
Transfer serum to a False bottom plasma/serum transport vial/tube (AHL), labelled as serum, within two (2) hours of sample collection

Alternate transport container:

False bottom plasma/serum transport vial/tube (AHL)

Transport and stability:

Refrigerated (preferred) - 7 days

Frozen (OK)

Reason for rejection:

Improper labels (unlabeled or mislabeled)
Hemolysis (some procedures)
Improper anticoagulant or ratio
Delay in transport
Improper storage temperature affecting results
Improper container
Leaking container resulting in compromised specimen
Quantity not sufficient (QNS)

Performing lab:

AHL - Immunology: I

Days set up:

Mo - Fr

TAT:

1 - 3 days

Method:

Turbidimetric

Reference ranges:

Reference range varies according to age

Age	Reference range
<1 year	0 - 83 mg/dL
1 through 3 years	20 - 100 mg/dL
4 through 6 years	27 - 195 mg/dL
7 through 9 years	34 - 305 mg/dL
10 through 11 years	53 - 204 mg/dL
12 through 13 years	58 - 358 mg/dL
14 through 15 years	47 - 249 mg/dL
16 through 19 years	61 - 348 mg/dL
Adult	84.5 - 499 mg/dL

CPT codes:

82784

Date created:

11/30/2001

Revised date:

10/03/2025

Review date:

01/24/2024