JBL EMT Practice Exam 2025 – Comprehensive All-in-One Resource for Exam Success!

Adequate breathing in an adult is characterized by a respiratory rate that typically falls within the normal range of 12 to 20 breaths per minute, combined with regular and effective chest movement, indicating sufficient airflow in and out of the lungs.

The chosen answer highlights respirations of 20 breaths per minute, which is at the upper limit of the normal range and indicates that the individual's breathing is consistent with what can be considered adequate. Additionally, the mention of bilateral chest movement suggests that both sides of the chest expand and contract equally during breathing, which is essential for effective ventilation. This indicates that the lungs are functioning properly, allowing for effective oxygen exchange.

In contrast, the other options depict signs of inadequate or problematic breathing. For instance, cool, clammy skin and retracting muscles suggest distress and potentially inadequate oxygenation. Respirations that are too rapid at 30 breaths per minute, paired with reduced tidal volume, indicate overbreathing without adequate air exchange. The use of accessory muscles and signs of cyanosis are key indicators of respiratory distress and insufficient oxygenation, illustrating that the person is struggling to breathe adequately.

Thus, the characteristics listed in the correct answer align well with signs of adequate breathing in adults, making it the clearly correct choice