Clinics and Departments

Laboratory Services

Lab Dept:

Chemistry

Test Name:

SULFISOXAZOLE LEVEL

General Information

Lab Order Codes:

SULF

Synonyms:

Gantrisin; Sulfonamides

CPT Codes:

84311 – Spectrophotometry, quantitation of analyte not otherwise specified

Test Includes:

Sulfisoxazole level reported in mcg/mL.

Logistics

Test Indications:

Useful for monitoring therapy to avoid urinary crystal formation.

Lab Testing Sections:

Chemistry - Sendouts

Referred to:

Mayo Medical Laboratories (Test# 90525) forward to NMS Laboratories

Phone Numbers:

MIN Lab: 612-813-6280

STP Lab: 651-220-6550

Test Availability:

Daily, 24 hours

Turnaround Time:

1 - 4 days, test set up Monday - Friday

Special Instructions:

Peak levels should be drawn 30 minutes after completion of infusion of an intravenous dose or 60 minutes after an intramuscular or oral dose of the antimicrobial to be assayed.

Specimen

Specimen Type:

Blood

Container:

Red top (plain, no gel) tube. Do Not use SST tubes.

Alternate tube: Lavender top (EDTA) tube

Draw Volume:

3 mL (Minimum: 1.5) blood

Processed Volume:

1 mL (Minimum: 0.5 mL) serum/plasma

Collection:

Routine venipuncture

Special Processing:

Lab Staff: Centrifuge specimen, remove serum/plasma aliquot into a screw-capped round bottom plastic vial. Store and ship at refrigerated temperatures. Indicate serum or plasma on specimen label. Forward promptly.

Patient Preparation:

None

Sample Rejection:

Mislabeled or unlabeled specimens; sample collected in a gel tube

Interpretive

Reference Range:

Therapeutic concentration: 50 - 100 mcg/mL

Critical Values:

N/A

Limitations:

N/A

Methodology:

Spectrophotometry

References:

Mayo Medical Laboratories (January 2011)

NMS National Medical Services Laboratory
(January 2011)

Updates:

1/24/2011: Specimen forward to NMS. Note CPT change, therapeutic range change and method change.



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