NREMT Paramedic Practice

What are the late signs of hypoxia?

1. Increased heart rate, increased respiration, dizziness

2. Bradycardia, extreme restlessness, dyspnea

3. Low blood pressure, confusion, excessive sweating

4. Normal pulse, fatigue, lethargy

The correct answer is: Bradycardia, extreme restlessness, dyspnea

The late signs of hypoxia typically include bradycardia (an abnormally slow heart rate), extreme restlessness, and dyspnea (difficulty breathing). As hypoxia progresses, the body begins to exhibit more severe reactions to the lack of oxygen. Bradycardia can occur as the body becomes more hypoxic because it attempts to conserve oxygen, leading to a decrease in heart rate. Extreme restlessness is often a sign of the body’s distress as it struggles to obtain adequate oxygen, signaling that the brain is not receiving enough oxygen, which can lead to agitation. Dyspnea reflects the body’s effort to compensate for low oxygen levels, showcasing respiratory distress. These late signs indicate that the patient's condition is worsening and requires immediate medical intervention. The presence of these symptoms signals a level of oxygen deprivation that may lead to serious complications if not addressed promptly.