Bio & Biochem Quiz
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FOUNDATIONAL CONCEPT 3: ORGAN SYSTEMS AND HOMEOSTASIS
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In an ICU, a sedative depresses ventilation, increasing arterial PCO2 from 40 to 60 mmHg over 30 minutes. Arterial pH decreases from 7.40 to 7.25. The ventilator is adjusted to increase minute ventilation, returning PCO2 toward 40 mmHg and pH toward 7.40. Which of the following best describes the control system operating after ventilator adjustment?
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