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Table 2 Details of concentrations of morphine and bupivacaine

From: Measurement of drug concentration and bacterial contamination after diluting morphine for intrathecal administration: an experimental study

Group Method 1 Method 2 Method 3 Pharmacy
Morphine concentration (μg/ml) 60 (59–110) 76 (72–80) 69 (66–71) 59 (59–59)
Bupivacaine (mg/ml) 1.98 (1.73–2.06) 2.00 (1.95–2.03) 1.97 (1.91–2.00) 2.54 (2.54–2.55)
Morphine Out-of-range (< 80%) 0 (0%) 0 (0%) 0 (0%) 0 (0%)
Morphine Out-of-range (> 120%) 7 (28%) 18 (72%) 3 (12%) 0 (0%)
Bupivacaine
Out-of-Range (< 80%)
1 (4%) 0 (0%) 1 (4%) 0 (0%)
Bupivacaine
Out-of-Range (> 120%)
0 (0%) 1 (4%) 0 (0%) 0 (0%)
  1. Data presented as median (95% CI) or n (%) where appropriate