Certified Transport Registered Nurse Certification Practice Exam

Which of the following symptoms might occur during the disturbance stage?

1. Increased coordination

2. Cyanosis

3. Enhanced cognitive function

4. Decreased heart rate

The correct answer is: Cyanosis

Cyanosis, or a bluish discoloration of the skin and mucous membranes, is a symptom that can occur during the disturbance stage, particularly in situations involving respiratory distress or circulatory failure. This stage is characterized by inadequate oxygen delivery to the tissues, which can result from various factors such as compromised airway, lung pathology, or cardiovascular issues. When tissues do not receive enough oxygen, the saturation of hemoglobin decreases, leading to the visible manifestation of cyanosis. In contrast, increased coordination, enhanced cognitive function, and decreased heart rate do not align with the physiological challenges present during the disturbance stage. Typically, a lack of oxygen can impair coordination and cognitive abilities, while heart rate is more commonly expected to increase as the body compensates for insufficient oxygenation or blood flow. Understanding these physiological responses is crucial for recognizing signs of distress and implementing appropriate interventions in transport nursing.