Sulfonamides - LG1147


Sunquest Code:ARMISC  
Epic Code:LAB4909Epic Name:Send Outs Misc Test
Methodology:Colormetry
CPT Code:80299
Turnaround Time:Specimens are sent to reference laboratory Mon-Sat; results are reported within 1-5 days.
Special Instructions:Record the specific sulfonamide the patient is taking on request form.


Collection Instructions

Specimen:Blood
Optimal Volume:2 mL
Minimum\Peds Volume:1.2 mL
Container:Red (no gel) (Purple (EDTA))
Collection Instructions:Collect peak sample 2 hours post dose. Record the specific sulfonamide the patient is taking on the request form.
Causes for Rejection:Whole blood samples. Samples collected in gel tubes.


Processing and Shipping

Specimen Processing:Centrifuge and aliquot within 2 hours of collection 1 mL, 0.5 mL minimum. Store refrigerated.
Shipping Instructions:Ship at refrigerated temperature.
Test Performed at or Referral Lab Lab Sendouts  (ARUP)
Referral Lab number:20044


Interpretive

Reference Range:5.0-15.0 mg/dL Toxic: >20.0 mg/dL
Use:This test is designed to measure sulfamethoxazole and sulfisoxazole. Peak sulfonamide (total) blood levels of 5.0-15.0 mg/dL may be effective for most infections, with concentrations of 12.0-15.0 mg/dL being optimal for serious infections. Sulfonamide levels should not exceed 20.0 mg/dL. Adverse effects may include blood dyscrasias, skin rash, nausea, vomiting and fever.


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