Ordering Recommendation

New York DOH Approval Status

This test is not New York state approved.

Specimen Required

Patient Preparation

To collect peak concentrations draw patient 2-3 hours after dose. To test for delayed drug absorption, a second specimen may be collected 4 hours after the peak.

Collect

Plain red. Also acceptable: Green (sodium heparin).

Specimen Preparation

Separate from cells ASAP or within one hour of collection. Transfer 2 mL serum or plasma to an ARUP standard transport tube and freeze immediately. (Min: 0.5 mL)
Test is not performed at ARUP; separate specimens must be submitted when multiple tests are ordered.

Storage/Transport Temperature

CRITICAL FROZEN.

Unacceptable Conditions

Severely hemolyzed or thawed specimens.

Remarks
Stability

Ambient: Unacceptable; Refrigerated: Unacceptable; Frozen: 1 month

Methodology

Quantitative High Performance Liquid Chromatography-Tandem Mass Spectrometry

Performed

Varies

Reported

13-17 days

Reference Interval

By report

Interpretive Data



Compliance Category

Performed by non-ARUP Laboratory

Note

Hotline History

N/A

CPT Codes

80299

Components

Component Test Code* Component Chart Name LOINC
2009362 Antimicrobial Level, Azithromycin, Serum 16420-2
2013379 Azithromycin Comment 48767-8
3000294 Azithromycin Specimen 31208-2
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.

Aliases

  • Zithromax
  • Zmax
Antimicrobial Level - Azithromycin by HPLC, Serum or Plasma

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