Which of the following conditions would result in an increased ETCO₂? I. Seizures II. Hyperthermia III. Hemorrhage IV. Pulmonary emboli A) I and III only B) II, III, and IV only C) I and II only D) I, II, and III only

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Seizures and hyperthermia both increase metabolic activity, leading to increased carbon dioxide production, which can result in increased end-tidal CO2 (ETCO2). Hemorrhage and pulmonary emboli typically do not result in increased ETCO2; hemorrhage can lead to decreased ETCO2 due to reduced cardiac output, and pulmonary emboli can decrease ETCO2 due to impaired pulmonary blood flow and gas exchange.

Which of the Following Conditions Would Result in an Increased