Figure 11-32 Resting end-tidal CO2 (PETCO2 ) at baseline; 5 minutes and 30 minutes after morphine (0.21 mg/kg IV); and after nalbuphine (0.21 mg/kg IV), naloxone (0.014 mg/kg IV) and saline given 55 minutes after morphine. (From Bailey PL, Clark NJ, Pace NL, et al: Failure of nalbuphine to antagonize morphine: A double-blind comparison with naloxone. Anesth Analg 65:605–611, 1986.)


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