Critical care medicine
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Critical care medicine · May 1991
Cardiovascular adjustments and gas exchange during extreme hemodilution in humans.
To examine the cardiovascular adjustments and pattern of gas exchange that occur during hemodilution. ⋯ The data suggest that, during hemodilution, tissue autoregulation of VO2 and utilization are not impaired, but gas exchange function (Qsp/Qt) is impaired.
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Critical care medicine · May 1991
Efficacy and safety of potassium infusion therapy in hypokalemic critically ill patients.
To evaluate the efficacy and safety of potassium replacement infusions in critically ill patients. ⋯ In the select group of hypokalemic patients studied, potassium infusions of 20 to 40 mmol delivered over 1 hr were safe to administer and effectively increased serum potassium levels in a dose-dependent and predictable fashion. Furthermore, these results were independent of the patient's underlying renal function or associated diuretic administration.
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Critical care medicine · May 1991
Efficacy of daily routine chest radiographs in intubated, mechanically ventilated patients.
To determine the efficacy of daily routine chest radiographs in intubated, mechanically ventilated patients. ⋯ These data demonstrate that, while a large percentage of radiographs will not disclose new findings, routine daily studies have a substantial impact on the management of intubated, mechanically ventilated patients in the ICU. These findings support the use of daily chest radiographs in critically ill patients.
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Critical care medicine · Apr 1991
Randomized Controlled Trial Clinical TrialChanges in whole body and tissue oxygen consumption during recovery from hypothermia: effect of amino acid infusion.
To study the effects of amino acids on whole body and peripheral energy metabolism during recovery from post-operative hypothermia. ⋯ The amino acid infusions had no effect on the leg uptake of glucose, ketone bodies, and pyruvate and the leg release of lactate, free fatty acids, and triglycerides, which remained constant during the study.
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Critical care medicine · Apr 1991
Objective assessment of changing mortality risks in pediatric intensive care unit patients.
To develop and validate a mortality risk predictor based on physiologic data that estimates daily the probability of a patient dying within the next 24 hrs as that probability changes with disease and recovery. ⋯ The predictor is valid for assessing the 24-hr mortality risk in pediatric ICU patients hospitalized in other tertiary care institutions, different from those used for predictor development. The predicted mortality risks allow prospective patient stratification into risk groups. The ability of this predictor to follow risk changes over time expands its applicability over static predictors by enabling the charting of patient courses, and permitting ICU efficiency analysis.