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Lab Dept:
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Chemistry
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Test Name:
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SULFISOXAZOLE LEVEL
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General Information
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Lab Order Codes:
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SULF
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Synonyms:
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Gantrisin; Sulfonamides
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CPT Codes:
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84311 – Spectrophotometry, quantitation of analyte not otherwise specified
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Test Includes:
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Sulfisoxazole level reported in mcg/mL.
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Logistics
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Test Indications:
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Useful for monitoring therapy to avoid urinary crystal formation.
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Lab Testing Sections:
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Chemistry - Sendouts
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Referred to:
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Mayo Medical Laboratories (Test# 90525) forward to NMS Laboratories
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Phone Numbers:
Minneapolis:
Saint Paul:
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612-813-6280
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651-220-6550
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Test Availability:
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Daily, 24 hours
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Turnaround Time:
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1 - 4 days, test set up Monday - Friday
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Special Instructions:
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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.
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Specimen
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Specimen Type:
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Blood
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Container:
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Red top (plain, no gel) tube. Do Not use SST tubes.
Alternate tube: Lavender top (EDTA) tube
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Draw Volume:
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3 mL (Minimum: 1.5) blood
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Processed Volume:
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1 mL (Minimum: 0.5 mL) serum/plasma
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Collection:
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Routine venipuncture
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Special Processing:
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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.
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Patient Preparation:
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None
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Sample Rejection:
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Mislabeled or unlabeled specimens; sample collected in a gel tube
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Interpretive
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Reference Range:
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Therapeutic concentration: 50 - 100 mcg/mL
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Critical Values:
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N/A
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Limitations:
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N/A
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Methodology:
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Spectrophotometry
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References:
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Mayo Medical Laboratories (January 2011)
NMS National Medical Services Laboratory (January 2011)
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Updates:
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1/24/2011: Specimen forward to NMS. Note CPT change, therapeutic range change and method change.
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