Test Name

IgA,
Quantitative

Test Code

621

Unit

mg/dL

Station

Chemistry

Synonym Name/Abbreviation

IgA serum; Quantitative IgA,
serum

CPT Code

82784

Performing Facility

American Medical Labs, Herzliya
Pituah

Analyzer

Roche cobas 6000

Test Method

Immunoturbidimetric

AML Preferred Tube

5 mL SST gel

Storage Instructions

Separate serum from cells within 45 minutes.

Stability:

8 months at 15 to 25 ^oC,at 2 to 8
^oC, or 8 months at -20^oC. Samples suspected of having
macroglobulins or cryoglobulins should be drawn and held at
37^oC.

Samples suspected of containing cold agglutinins should not
be refrigerated prior to serum separation from
clot.

Min. Volume

1 mL

Comments

State patients age on the request form. Reference range is
age dependent

Turn-Around-Time

One day

Intended Use

Evaluate humoral immunity; monitor therapy in IgA
myeloma

Limitations

If samples containing macroglobulins, cryoglobulins, or cold
agglutinins are handled at incorrect temperatures,  or in case of monoclonal
gammopathy, false low or inaccurate results  may be obtained. Measuring range:
50 to 800 mg/dL.

Patient Preparation

No patient preparation
needed.

Reasons for Rejection

Excessive lipemia

Adult Reference Ranges

 70 to 400
mg/dL