CSCP Clinical Perfusion Practice Questions - CSCP National Certification Examination - Clinical Perfusion (Canada) Exam

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When managing acid-base chemistry using the alpha-stat strategy during hypothermic cardiopulmonary bypass at 30°C, how should the arterial blood gas values be interpreted?

The blood gas values must be corrected to the patient's actual body temperature of 30°C The blood gas values measured at 37°C should be maintained at a pH of 7.40 and a PaCO2 of 40 mmHg Carbon dioxide should be added to the oxygenator sweep gas to keep the pH at 7.40 at 30°C The patient's actual pH at 30°C should be maintained at 7.40 regardless of the 37°C measurement

Correct Answer:

The blood gas values measured at 37°C should be maintained at a pH of 7.40 and a PaCO2 of 40 mmHg

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