88281:SULFONAMIDES (SULFAS)

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88281:SULFONAMIDES (SULFAS)
Alias Names: Sulfa / Bactrim / Gantricin / Septra / Sulfa Drugs
Methodology: Spectrophotometry (S)
Edit Date: 3/17/2010
Performed: Tuesday, Friday
Released: 1-5 Days after setup at PeaceHealth Laboratories’ reference lab
CPT Code: 80299-90
Specimen Collection Details
Collection: One 5 mL red top tube. Draw peak sample 2 hours post dose. Also acceptable: One 4 mL green top tube (heparin), 4 mL lavender top tube (EDTA), or one 4 mL grey top tube (sodium fluoride/potassium oxalate).
Handling: Allow to clot, centrifuge and separate serum or plasma into a plastic vial. NOTE: Indicate which sulfa drug is being administered. Refrigerate.
Stability: 14 days ambient, 14 days refrigerated, or 14 days frozen.
Standard Volume: 1 mL serum or plasma
Minimum Volume: 0.5 mL serum or plasma
Comments: This test is designed to measure sulfamethoxazole and sulfisoxazole. Peak sulfonamide (total) blood levels of 5-15 mg/dL may be effective for most infections, with concentrations of 12-15 mg/dL being optimal for serious infections. Sulfonamide levels should not exceed 20 mg/dL.
This test may require insurance company prior authorization before ordering.
Please check the prior authorization list
.
Failure to gain preauthorization may result in denial of coverage.

Therapeutic Range 5.0-15.0 mg/dL
Toxic >20.0 mg/dL