Angioedema Panel, Hereditary, Comprehensive

Test Code

17706

CPT Codes
86161, 86160 (x2)

Includes

C1 Esterase Inhibitor, Functional
Complement Component C4c
C1 Esterase Inhibitor, Protein

Preferred Specimen

3 mL frozen serum collected in a red-top tube (no gel)

Patient Preparation

Overnight fasting is preferred

Minimum Volume

1.2 mL

Instructions

Freeze serum within one hour of collection.
Do not submit the sample in a glass tube. Do not thaw.

Transport Container

Plastic screw-cap vial

Transport Temperature

Frozen

Specimen Stability

Room temperature: Unacceptable
Refrigerated: Unacceptable
Frozen: 21 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Lipemia • Received at room temperature

Methodology
Immunoassay (IA) • Immunoturbidimetry • Nephelometry

Setup Schedule

Set up: Tues, Sat; Report available: 1-3 days

Limitations

Patients taking anabolic steroids may have falsely elevated C4 values.

Reference Range

See individual tests

Clinical Significance

This panel is designed to assist in the diagnosis of hereditary angioedema.

Performing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly, VA 20153

Last Updated: September 26, 2019

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.