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| '''A'''rterial''' B'''lood '''G'''as
| | This category contains articles that are related to Arterial Blood Gas tests ([[ABGs]]). |
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| Select the '''worst deviation from normal''' Arterial Blood Gases (ABG) in the first 24 hours of ICU admission as outlined on the [[APACHE Scoring table]]. '''Do not use venous gases.'''
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| *an ABG result is preferred, but if no ABG available during the first 24 hours in ICU then select the worst '''[[serum CO2]]'''
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| FiO<sub>2</sub> ≤ 49% - Base your selection of the '''worst''' ABG on the '''worst''' PO2.
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| FiO<sub>2</sub> ≥ 50% - Base your selection of the '''worst''' ABG on the '''worst''' [[AaDO2]].
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| AaDO<sub>2</sub> Calculation:
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| (AaDO<sub>2</sub> is the arterial-alveolar O<sub>2</sub> tension difference)
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| AaDO<sub>2</sub> = (Fi02 X 713) - PO<sub>2</sub> - CO<sub>2</sub>
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| e.g. (FiO<sub>2</sub> 0.5 X 713) - PO<sub>2</sub> 85-CO<sub>2</sub> 40 = AaDO<sub>2</sub> 231.5
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| *'''all arterial blood gas results ([[FiO2]], [[PO2]], [[CO2]] & [[PH]]) should be obtain from the same specimen'''.[[User:TOstryzniuk|TOstryzniuk]] 20:57, 5 March 2009 (CST)
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| *See [[APACHE Scoring table]]
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| This element is also collected for:
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| *[[Labs]] test counts
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| [[User:TOstryzniuk|TOstryzniuk]] 20:07, 5 March 2009 (CST)
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| {{stub}}
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| [[Category: APACHE II]]
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This category contains articles that are related to Arterial Blood Gas tests (ABGs).