Advanced Diagnostic Laboratories

Collect

Collect blood in an 8-10 mL plain red top tube.
An 8-10 mL green top tube is also acceptable for this assay, but not preferred.

Specimen Preparation

Allow to clot for 30 minutes, separate serum from cells immediately by centrifugation and aliquot into a labeled polypropylene or similar plastic tube. Use a separate tube for each test ordered. Allow room for expansion of sample inside tube.

Preferred volume: 2 mL of serum (or plasma).
Minimum volume: 0.25 mL serum (or plasma).

Pediatric Collection

If minimum volume cannot be obtained, contact Laboratory.

Unacceptable Conditions

Severe hemolysis, thawed samples for greater than 24 hours

Storage Transport Temp

Fully complete PK requisition, including drug dose amount, frequency, method, and date and time of last dose prior to draw.

Ship samples via overnight delivery on >3 lbs of dry ice.

Stability

Freeze at -70C if possible, but at minimum -20C. Up to 24 hours at room temperature.

Notes

Ship samples to be received Monday through Friday. Do not ship on Friday or Saturday. For shipping and detailed collection instructions, click here.

Performed

Weekdays

Methodology

LC/MS

Reported

Within 10 Business days

Department

Pharmacokinetics Lab

Synonyms

Zithromax (Azithromycin, Level);Zmax (Azithromycin, Level);mycobacteria (Azithromycin, Level);HPLC (Azithromycin, Level);pharmacokinetics (Azithromycin, Level);ATAZ

Reference Interval

By Report

CPT Code

80299