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| '''A'''rterial''' B'''lood '''G'''as (ABG)
| | This category contains articles that are related to Arterial Blood Gas tests ([[ABGs]]). |
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| ==ABG for APACHE II==
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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
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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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| 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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| IF [[FiO2]] ≤ 49% - Base the selection of the '''worst''' ABG on the '''worst''' [[PO2]].
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| IF [[FiO2]] ≥ 50% - Base the selection of the '''worst''' ABG on the '''worst''' [[AaDO2]].
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| [[AaDO2]] Calculation:
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| [[AaDO2]] is the arterial-alveolar O<sub>2</sub> tension difference)
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| [[AaDO2]] = ([[FiO2]] X 713) - [[PO2]] - [[CO2]]
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| e.g. ([[FiO2]] 0.5 X 713) - [[PO2]] 85- [[CO2]] 40 = [[AaDO2]] 231.5
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| *See [[FiO2]] table
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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 Physiological Variables]]
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This category contains articles that are related to Arterial Blood Gas tests (ABGs).