In hypothermia management, arterial blood gas abnormalities should be corrected to match the patient’s temperature.

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Multiple Choice

In hypothermia management, arterial blood gas abnormalities should be corrected to match the patient’s temperature.

Temperature changes alter how blood gases behave, so arterial blood gas values aren’t interpreted the same at hypothermic temperatures as they are at normal body temperature. In hypothermia, CO2 solubility and buffering shift with temperature, which can make pH and PCO2 appear more or less abnormal than they truly are once the patient warms. Therefore, ABG abnormalities should be corrected to reflect the patient’s current temperature (often interpreted as or compared after adjusting to normal body temperature) to reveal the true acid–base status and guide appropriate management. If you don’t adjust for temperature, you risk misinterpreting whether there is a metabolic or respiratory disturbance and how to treat it.

Temperature changes alter how blood gases behave, so arterial blood gas values aren’t interpreted the same at hypothermic temperatures as they are at normal body temperature. In hypothermia, CO2 solubility and buffering shift with temperature, which can make pH and PCO2 appear more or less abnormal than they truly are once the patient warms. Therefore, ABG abnormalities should be corrected to reflect the patient’s current temperature (often interpreted as or compared after adjusting to normal body temperature) to reveal the true acid–base status and guide appropriate management. If you don’t adjust for temperature, you risk misinterpreting whether there is a metabolic or respiratory disturbance and how to treat it.

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