Critical Care Registered Nurse (CCRN) Practice Exam

What is a primary symptom associated with Reversible Cerebral Vasoconstriction Syndrome (RCVS)?

1. Persistent dizziness

2. Thunderclap headaches

3. Visual disturbances

4. Loss of consciousness

The correct answer is: Thunderclap headaches

Thunderclap headaches are a primary symptom associated with Reversible Cerebral Vasoconstriction Syndrome (RCVS). These headaches are characterized by their sudden onset and extreme intensity, often described as being the worst headache of the patient's life. This type of headache typically reaches its peak intensity within seconds to minutes and is distinct in its presentation from other headache disorders. The occurrence of thunderclap headaches is linked to the intermittent vasoconstriction of cerebral blood vessels, which is a hallmark of RCVS. Recognizing this symptom is crucial for early diagnosis and management, as RCVS can lead to complications such as subarachnoid hemorrhage or ischemic events if not addressed promptly. The other options, while they may occur in various conditions, are not specific or primary symptoms of RCVS.