Immunoglobulin A (IgA)

SIM

50160 

CPT

82784 

Synonyms

IgA 

Specimen Type

Plasma or serum 

Container

3.5 ml Green - Lithium heparin plasma separator 
4.0 ml Gold-top serum separator Green

Collection Instructions

Volume

2 ml plasma or serum 
Min: 0.5 ml

Additional Information

None

Patient Preparation

None

Specimen Processing Instructions

Plasma:  Centrifuge at 3380 rpm’s (±100) for a minimum of 10 minutes 
Serum:  Allow to clot.  Centrifuge at 3380 rpm’s (±100) for a minimum of 10 minutes 
Centrifuge within 2 hours of collection.

Transport Requirements

Refrigerated

Specimen Stability

Refrigerated: 5 days, Room temp: 8 hours 

Rejection Criteria

If not centrifuged within 2 hours of collection. 
Gross Hemolysis

Reference Range

Reference Range:

• 0 day – 30 days = 8 -45 mg/dl
• 31 day 2 month = 10 – 57
• 3 month – 4 month = 10 – 131
• 5 month - 12 month = 10 – 129
• 13 month – 24 month = 19 – 175
• 25 month – 36 month = 22 – 220
• 37 month – 48 month = 56 – 343
• 49 month – 60 month = 61 – 345
• 61 month 72 month = 43 – 253
• 73 month – 7 years = 41 – 297
• 8 years – 10 years = 51 – 259
• 11 years – 13 years = 44 – 395
• 14 years – 19 years = 44 – 441
• 20 years - Adult = 50 – 374 mg/dl 

Critical Value

none 

Test Includes

IgA 

Methodology

Immuno-Turbidimetric method 

Testing Frequency

Daily, Monday - Sunday 

Reviewed By

Crystal M. Killian

Reviewed Date

3/18/2021

Supplemental