Table 1.

Timing of Vancomycin Trough Concentrations in Relation to the Next Scheduled Dose.

Trough Concentrations Suitable for Analysis	143
Trough Measured within 0.5 h of Next Dose	81 (57%)
Trough Measured >0.5 h and <2 h Prior to Next Dose	34 (24%)
Trough Measured ≥2 h Prior to Next Dose	28 (19%)