High Performance Liquid Chromatography (HPLC)
Monitor therapeutic drug level.
Trimethoprim: >2 mcg/mL; Sulfamethoxazole: 90 - 100 mcg/mL, Toxic > or = 300 mcg/mL.
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
2 - 7 days
Test sent to Mayo Medical Laboratories.