Which set lists the three components of the classic blast triad?

Which set lists the three components of the classic blast triad?

• A. Apathy, Bradycardia, Fever
• B. Respiratory distress, Hypertension, Tachycardia
• C. Oliguria, Hypertension, Apnea
• D. Apnea, Bradycardia, Hypotension

Answer: (D)

The classic blast triad reflects an acute brainstem-driven response to a blast injury. Apnea shows respiratory center depression, bradycardia comes from a vagal stimulation response to hypoxia or brainstem irritation, and hypotension results from loss of autonomic vascular tone. Together, they signal severe CNS involvement after a blast and require immediate airway, breathing, and circulation management. The other groupings mix signs that don’t fit this immediate brainstem response—for example, fever or apathy aren’t typical acute indicators in this context, and hypertension with tachycardia or oliguria with apnea point to different underlying processes.

The classic blast triad reflects an acute brainstem-driven response to a blast injury. Apnea shows respiratory center depression, bradycardia comes from a vagal stimulation response to hypoxia or brainstem irritation, and hypotension results from loss of autonomic vascular tone. Together, they signal severe CNS involvement after a blast and require immediate airway, breathing, and circulation management. The other groupings mix signs that don’t fit this immediate brainstem response—for example, fever or apathy aren’t typical acute indicators in this context, and hypertension with tachycardia or oliguria with apnea point to different underlying processes.