What is Cushing's Triad?

A. The compensatory stage involves subtle changes as the brain attempts to maintain normal ICP, typically without severe symptoms like dilated pupils.
B. The refractory stage is the final stage where brain injury is irreversible and signs are severe, often including coma.
C. The initial stage usually shows minimal or no symptoms.
D. The progressive stage of increased ICP is characterized by worsening neurological signs, including vomiting, dilated pupils due to cranial nerve compression, and decreased level of consciousness. These symptoms indicate that intracranial pressure is rising and beginning to impair brain function.

A. Tension headaches are typically related to stress and do not have a specific pattern of occurring at night or in the morning.
B. Sinusitis headaches usually worsen with sinus pressure and may be worse when bending forward, not specifically nocturnal or morning.
C. Migraines often have variable timing and may not specifically occur at night or morning.
D. Nocturnal or morning headaches can indicate increased intracranial pressure caused by a brain tumor or other space-occupying lesion, as pressure builds overnight and is relieved during the day.