NREMT Paramedic Practice

What is a common symptom of cyanide poisoning?

1. Clammy skin

2. Rapid progression of respiratory failure

3. Chest pain

4. Warm extremities

The correct answer is: Rapid progression of respiratory failure

A common symptom of cyanide poisoning is the rapid progression of respiratory failure. Cyanide interferes with the body’s ability to utilize oxygen at the cellular level, which can result in hypoxia. As the cells become deprived of oxygen, patients may experience difficulty breathing and rapidly deteriorating respiratory function. This may manifest as increased respiratory effort, shallow or labored breathing, or, in severe cases, cessation of breathing altogether. The occurrence of rapid progression in respiratory failure is particularly notable because it can happen within minutes of exposure, making it a critical symptom to recognize in emergency situations. This swift decline in respiratory status is often accompanied by other symptoms such as altered mental status, seizures, or loss of consciousness, reflecting the systemic impact of cyanide on the body. The other options, while potentially relevant in different clinical scenarios, do not capture the hallmark nature of cyanide poisoning as effectively as the progression towards respiratory failure.