Air Diving Supervisor Practice Exam 2025 - Free Diving Supervisor Practice Questions and Study Guide

Question: 1 / 400

Which of the following is NOT a symptom of hypercapnia?

Increased breathing rate

Loss of consciousness

Excessive nausea

Excessive nausea is not typically recognized as a symptom of hypercapnia. Hypercapnia occurs when there is an elevated level of carbon dioxide in the bloodstream, often due to inadequate respiration or respiratory disorders. The body's attempts to compensate for high carbon dioxide levels usually manifest as increased breathing rate to help expel CO2. Alongside respiratory efforts, individuals may also experience confusion, drowsiness, or in severe cases, a euphoric state. The more serious effects can include loss of consciousness, but nausea, while it can occur in multiple medical conditions, is not a primary or well-documented response specifically associated with hypercapnia.

Recognizing symptoms related to hypercapnia is crucial for timely intervention, especially in diving and high-exposure environments, where maintaining proper gas exchange is vital for safety.

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Confusion or feeling of euphoria

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