Trough levels of vancomycin — measured just before the next scheduled dose — guide dosing adjustments in patients receiving this important antibiotic. Target trough levels vary by infection type and severity, typically 15-20 mg/L for severe MRSA infections.
This test is used in patients on intravenous vancomycin for serious infections to ensure therapeutic but not toxic levels. Monitoring helps balance efficacy against kidney and ear toxicity. Sample type is serum, drawn within 30 minutes before the next scheduled dose.