To determine whether contamination of the catheter was the cause of pyrexis in patients receiving total parenteral nutrition through central venous catheters, semiquantitative culture of blood drawn through the line kept in place was performed. Eighty-three catheters from 75 patients were studied. The predictive value of a negative culture using this method was greater than 97%.
Pancuronium 0.02--0.08 mg kg-1 induced a dose-related increase of heart rate in patients anaesthetized with nitrous oxide supplemented with either fentanyl 0.003 mg kg-1 or fentanyl 0.003 mg kg-1 plus droperidol 0.15 mg kg-1. The tachycardia was more marked following the administration of droperidol.
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