A nurse performs a respiratory assessment on a client and notes the respiratory rate to be 8 breaths per minute. The nurse knows the medical term for this finding is:

Bradypnea is defined as an abnormally slow respiratory rate, typically fewer than 12 breaths per minute in adults. A respiratory rate of 8 breaths per minute is significantly below the expected normal range and indicates decreased ventilatory drive or respiratory depression. Rationale: Normal adult respiratory rate ranges from approximately 12 to 20 breaths per minute. When the rate falls below this range, it is termed bradypnea. This condition may result from multiple underlying causes affecting the central nervous system or respiratory system. Common causes include central nervous system depression from medications such as opioids, sedatives, or anesthetics, which suppress the respiratory center in the brainstem. It may also occur in conditions such as increased intracranial pressure, metabolic disorders, hypothermia, or severe sleep-related breathing disturbances. A respiratory rate of 8 breaths per minute is clinically significant because it may lead to inadequate oxygenation and carbon dioxide retention (hypoventilation). This can progress to respiratory acidosis if not addressed. The nurse should immediately assess oxygen saturation, level of consciousness, and airway patency. Additional assessment for drug administration history, especially opioid use, is critical. Depending on severity, interventions may include oxygen therapy, stimulation of the patient, notification of the healthcare provider, and preparation for possible reversal agents or ventilatory support.