Neutrophil Chemotaxis
Test Code
CHTX
Description
Collect
Green top tube (Sodium or Lithium Heparin).
Additionally, send a similar sample from an unrelated, normal subject to serve as a control.
Specimen Preparation
Do NOT centrifuge! Keep at room temperature (18-22°C).
Preferred volume: 10mL
Pediatric Collection
Minimum volume: 6 mL blood
Unacceptable Conditions
Frozen, clotted, hemolyzed or centrifuged specimens. Anticoagulants other than heparin. Specimens >24 hrs old.
Storage Transport Temp
Maintain and transport specimens at room temperature (18-22°C).
Ship specimens Priority Overnight via Fed Ex in container sufficiently insulated to avoid temperature extremes (<10°C and >37°C).
Stability
24 hours at room temperature (18-22°C)
Notes
Test must be scheduled with the laboratory at least one week in advance of draw. Please call ADx Immunology lab at 303.398.1344 to schedule testing.
Specimen must be received in the laboratory within 24 hours of collection.
Reference Interval
Buffer: 24-54 microns migrated, Zymosan Activated Serum (ZAS): 68-114 microns migrated.
Interpretation
This test assesses the ability of neutrophils to migrate in response to a chemoattractant and is useful in the assessment of suspected neutrophil defects.
CPT Code
86155 X 2