Paroxysmal Nocturnal Hemoglobinuria (PNH) with FLAER (High Sensitivity)

Test Code

CD5559

Quest Code

94148

Alias/See Also

CD55
CD59
CD5559
PNH with FLAER
FCM for PNH
FLAER, PNH

CPT Codes
88184, 88185 (x7), 88187<br><strong>This test code is for non-New York patient testing. For New York patient testing, use test code 38687.</strong>

Includes

Antibodies directed against CD45, glycophorin A, CD59, CD24, CD14, CD15, CD64, as well as FLAER.

Preferred Specimen

10 mL whole blood collected in a sodium heparin (green-top) tube, or acid citrate dextrose ACD-A (yellow-top) tube, or EDTA (lavender-top) tube

Minimum Volume

5 mL

Other Acceptable Specimens

Whole blood collected in: ACD-A (yellow-top) tube or EDTA (lavender-top) tube

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 72 hours
Refrigerated: Unacceptable
Frozen: Unacceptable

Methodology
Flow Cytometry (FC)

FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by the U.S. Food and Drug Administration. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Setup Schedule

Set up: Daily; Report available: 2-3 days

Reference Range

See Laboratory Report

Clinical Significance

The high sensitivity and quantitative flow cytometry assay is used in the diagnosis and follow-up of patients with paroxysmal nocturnal hemoglobinuria (PNH). FLAER as well as antibodies directed against glycosylphosphosphatidylinositol (GPI)-linked antigens are used to evaluate for the presence of (GPI)-deficient cell populations down to a level of 0.01%.

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

Last Updated: September 12, 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.