American journal of critical care : an official publication, American Association of Critical-Care Nurses
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Randomized Controlled Trial Comparative Study Clinical Trial
Effect of position on selected hemodynamic parameters in postoperative cardiac surgery patients.
Indirect/noninvasive blood pressure, heart rate and central venous pressure are frequently monitored hemodynamic parameters in postoperative cardiac surgery patients. No previous studies have explored the effect of lateral position on these variables in this population. ⋯ Lateral positioning of postoperative cardiac surgery patients appears to cause no detrimental effects on indirect/noninvasive blood pressure or heart rate measurements. However, significant differences in central venous pressure may occur and supine positioning for determination of central venous pressure is recommended.
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Randomized Controlled Trial Comparative Study Clinical Trial
Effects of two dosing regimens of intravenous ranitidine on gastric pH in critically ill children.
Gastric bleeding in children is associated with critical illness, shock, and physical trauma. Histamine-2 receptor antagonist therapy is used prophylactically to treat gastric bleeding, but it is not known whether bolus dosing or continuous infusion dosing is more effective. ⋯ Both bolus dosing and continuous infusion dosing of 4 mg/kg per day of intravenous ranitidine were effective at raising and maintaining gastric pH in critically ill children.