Archive for the ‘ARDS’ Category

Lactate Levels as Predictors of the Relationship between Oxygen Delivery and Consumption in ARDS: Discussion (4)Factors which increase metabolic demands for oxygen may also precipitate an anaerobic condition and thus lead to supply dependency over a […]

Our findings are consistent with investigations of patients with systemic sepsis. Many patients with ARDS have sepsis as well. The similarity in patterns of systemic oxygen utilization in sepsis and ARDS may also be attributed to similar systemic pathophysiology in both conditions, pathophysiology that may be a characteristic of severe systemic inflammation. asthma inhalers

Lactate Levels as Predictors of the Relationship between Oxygen Delivery and Consumption in ARDS: Discussion (2)In several studies of patients with ARDS, a much greater proportion of patients exhibited supply-dependent behavior when compared to the proportion […]

The results of this study confirm that a supply-dependent Vo2 response is characteristic of patients with ARDS and elevated blood lactate concentrations, whereas patients without hyperlactatemia appear to be supply independent with respect to tissue oxygenation. These findings suggest that the pattern of oxygen utilization in ARDS may be biphasic and support the hypothesis that a systemic oxygen debt, as exemplified by increased blood lactate, is a characteristic of supply-dependent […]

Lactate Levels as Predictors of the Relationship between Oxygen Delivery and Consumption in ARDS: ResultsDescriptive features of patients with normal aqd with elevated lactate levels are shown in Table 1. The alveolar-arterial oxygen tension gradient and mortality were significantly higher in the elevated lactate group. […]

Arterial and mixed venous oxygen tensions were measured using standard automated blood gas instrumentation. Hemoglobin concentrations and oxyhemoglobin saturations were measured spectro-photometrically using an automated spectrophotometric oximeter (CO-oximeter). Blood lactate concentrations were determined on iced arterial blood specimens using spectrophotometric or ampe-rometric enzyme assays.

Lactate Levels as Predictors of the Relationship between Oxygen Delivery and Consumption in ARDS: Materials and Methods (1)Data from 58 patients from the MICUs of Mount Carmel Mercy Hospital (n = 10), Detroit Receiving Hospital (n = 36), and Harper Hospital (n […]

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