Question

In the setting of a head injury, hypertension, bradycardia, and Biot respirations indicate.

A. herniation of the brain stem.
B. internal bleeding in the chest.
C. decreased cerebral blood flow.
D. an underlying skull fracture.

Answer 1

Hypertension, bradycardia, and Biot respirations in the setting of a head injury indicate a herniation of the brain stem, which is associated with increased intracranial pressure and is often caused by a hematoma.

Step-by-step explanation:

In the context of a head injury, the presence of hypertension, bradycardia, and Biot respirations suggests herniation of the brain stem. This trio of symptoms is commonly associated with Cushing's triad, which is indicative of increased intracranial pressure (ICP), often due to a hematoma forming and exerting pressure on the brain.

Herniation refers to the displacement of brain tissue due to this pressure, which can be life-threatening and requires immediate medical attention.