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Test Code LAB3468 Sulfamethoxazole, Serum

Additional Codes

Sulfamethox

Reporting Name

Sulfamethoxazole, S
Seattle Children's Hospital Note:

SCH Clinical System Name: Sulfamethoxazole Level

Useful For

Monitoring sulfamethoxazole therapy to ensure drug absorption, clearance, or compliance


Specimen Required


Supplies: Sarstedt Aliquot Tube, 5 mL (T914)

Collection Container/Tube: Red top (gel tubes/SST are not acceptable)

Submission Container/Tube: Plastic vial

Specimen Volume: 1 mL

Collection Instructions:

1. Serum for a peak level should be collected 60 minutes after dose.

2. Within 2 hours of collection, centrifuge and aliquot serum into a plastic vial.


Specimen Type

Serum Red

Specimen Minimum Volume

0.5 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Serum Red Refrigerated (preferred) 28 days
  Ambient  28 days
  Frozen  28 days

Day(s) Performed

Monday, Thursday

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Method Name

Liquid Chromatography Mass Spectrometry (LC-MS/MS)

Method Description

Samples are extracted with analyte detection by tandem mass spectrometry.(Unpublished Mayo method)

Reference Values

>50 mcg/mL (Peak)

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.

CPT Code Information

80299

LOINC Code Information

Test ID Test Order Name Order LOINC Value
SFZ Sulfamethoxazole, S 10342-4

 

Result ID Test Result Name Result LOINC Value
8238 Sulfamethoxazole, S 10342-4

Report Available

2 to 5 days

Reject Due To

Gross hemolysis OK
Gross lipemia OK
Gross icterus OK

Forms

If not ordering electronically, complete, print, and send a Therapeutics Test Request (T831) with the specimen.

Seattle Children's Hospital Additional Information:

Aliases: Bactrim; Bactrim (Sulfamethoxazole and trimethoprim); Gantanol (Sulfamethoxazole); SEPTRA (Sulfamethoxazole and Trimethoprim); Sulfamethoxazole; Sulfamethoxazole and Trimethoprim (Bactrim, SEPTRA); Trimethoprim and Sulfamethoxazole (Bactrim, SEPTRA)