Test Overview
Test Methodology

Radioimmunoassay (RIA)

Reference Range *

0 - 2830 ng/mL

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Details
Days Set Up
1st and 3rd Thursday of the month
Analytic Time

21-44 days

Soft Order Code
FC4A
MiChart Code
C4ades Arg Level (Sendout)
Synonyms
  • C4ades Arg Level
Laboratory
Sendout
Reference Laboratory
Mayo FC4A (57800) (National Jewish Health C4AL)
Section
Special Testing
Specimen Requirements
Collection

Collect specimen in a lavender top tube. Mix well, centrifuge, and aliquot plasma into a plastic vial within 30 minutes of collection. Freeze immediately.

Special Handling

Must arrive in lab or aliquot and freeze within 30 minutes.

Lavender Top Tube
Normal Volume
1 mL EDTA plasma
Minimum Volume
0.5 mL EDTA plasma
Additional Information

Test sent to Mayo Medical Laboratories; performed by National Jewish Health.

Billing
CPT Code
86160
Fee Code
AA388
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