Indices of global hypoperfusion |
Hypotension |
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Tachycarda |
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Oliguria |
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Delayed capillary refill |
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Clouded sensorium |
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Elevated blood lactate |
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Low mixed venous O2 saturation |
Indices of regional hypoperfusion |
Markers of organ function |
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Cardiac: myocardial ischemia |
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Renal: decreased urine output, increased blood urea nitrogen and creatinine |
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Hepatic: increased transaminases, increased lactate dehydrogenase, increased bilirubin |
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Splanchnic: stress ulceration, ileus, malabsorbtion |
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Direct assessment |
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Tonometry: increased gastric mucosal CO2 tension |
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Sublingual capnometry: increased sublingual CO2 tension |
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Near infrared spectroscopy: decreased tissue O2 saturation |
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Orthogonal polarization spectral imaging: low flow velocity score |