Critical Care Registered Nurse (CCRN) Practice Exam

Which of the following conditions can cause Reversible Cerebral Vasoconstriction Syndrome (RCVS)?

1. Hypertension

2. Hormone-secreting tumors

3. Diabetes Mellitus

4. Pneumonia

The correct answer is: Hormone-secreting tumors

Reversible Cerebral Vasoconstriction Syndrome (RCVS) is characterized by recurrent thunderclap headaches and is often associated with transient narrowing of cerebral arteries. The condition can be triggered by a variety of factors, among which hormone-secreting tumors are particularly notable. These tumors can lead to increases in circulating catecholamines or other vasoactive substances that might provoke vasospasm, contributing to RCVS. In this context, hormone-secreting tumors, such as pheochromocytomas or certain types of neuroendocrine tumors, can elevate hormone levels that impact vascular tone, leading to the characteristic vasoconstrictive effects seen in RCVS. While hypertension, diabetes mellitus, and pneumonia can influence overall health and contribute to vascular issues, they are not specifically identified as direct causes of RCVS in the same way that hormone-secreting tumors are. Thus, understanding the unique mechanisms by which hormone-secreting tumors can lead to cerebral vasoconstriction is key to recognizing why this option is correct.