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April 16, 2014

Homework Help: acid-base question

Posted by Lena on Monday, March 21, 2011 at 4:50pm.

This man had a myocardial infarct a couple days ago and his lab report from an arterial blood sample reveals this (normal values in brackets):
pH 7.30 (7.35-7.45)
HCO3- = 20 mEq/liter (22-26)
PCO2 = 32 mmHg (40 mmHg)

What's his acid-base status and what compensation is taking place?

I don't know whether he is suffering from respiratory alkalosis or metabolic acidosis. Im leaning towards alkalosis just because he had a heart attack. But his pH is lower than normal so im thinking metabolic acidosis but that wouldnt be caused by a heart attack.

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