Therapy for cerebral vasospasm includes all of the following except which of the following?

Therapy for cerebral vasospasm includes all of the following except which of the following?

• A. Blood pressure elevation
• B. Hemodilution
• C. Diuretics
• D. Calcium channel blockers

Answer: (C)

The main idea is that managing cerebral vasospasm aims to improve cerebral blood flow by increasing perfusion pressure and reducing vessel constriction after a subarachnoid hemorrhage. Elevating systemic blood pressure helps push more blood through narrowed cerebral arteries when autoregulation is impaired, thereby supporting cerebral perfusion. Hemodilution, by lowering blood viscosity, can enhance flow through constricted vessels and has been used to improve microcirculatory perfusion. Calcium channel blockers, particularly nimodipine, are used to prevent or lessen vasospasm and improve outcomes by relaxing cerebral arteries. Diuretics, however, do not address the constricted vessels and can reduce intravascular volume, which may worsen cerebral perfusion. So diuretics are not part of the therapy for cerebral vasospasm.

The main idea is that managing cerebral vasospasm aims to improve cerebral blood flow by increasing perfusion pressure and reducing vessel constriction after a subarachnoid hemorrhage. Elevating systemic blood pressure helps push more blood through narrowed cerebral arteries when autoregulation is impaired, thereby supporting cerebral perfusion. Hemodilution, by lowering blood viscosity, can enhance flow through constricted vessels and has been used to improve microcirculatory perfusion. Calcium channel blockers, particularly nimodipine, are used to prevent or lessen vasospasm and improve outcomes by relaxing cerebral arteries. Diuretics, however, do not address the constricted vessels and can reduce intravascular volume, which may worsen cerebral perfusion. So diuretics are not part of the therapy for cerebral vasospasm.