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Old 01-10-2013
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Question Arterial blood gases

Lets make a list of ABG's in different condition-
COPD- ph- <7.35, paCO2 > 40, respiratory acidosis
Pulm embolism,anxiety,panic disorder- ph>7.45, PaCO2 < 40, resp alkalosis
Be good , be better , be the BEST
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Old 05-27-2013
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Pulmonary Embolus

pH>7.45, paCO2<40 mmHg, paO2<80 mmHg

Not always true in reality but for the purpose of the boards, I've come across 3 questions in UWorld's Qbank where the correct ABG for PEs had some manifestation of Resp Alkalosis with the above lab findings.
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