Question

CPP autoregulates between what mmHg? How does HTN shift it?

a) Autoregulates between 50-150 mmHg; HTN shifts it to the right
b) Autoregulates between 60-160 mmHg; HTN shifts it to the left
c) Autoregulates between 70-170 mmHg; HTN shifts it to the right
d) Autoregulates between 80-180 mmHg; HTN shifts it to the left

Answer 1

CPP autoregulates between 50-150 mmHg, and chronic hypertension shifts the autoregulatory range to the right.

Step-by-step explanation:

The cerebral perfusion pressure (CPP) autoregulates between 50-150 mmHg. Hypertension (HTN) shifts this autoregulatory range to the right, meaning that in patients with chronic hypertension, the range of pressures at which autoregulation can maintain a consistent cerebral blood flow is adjusted upwards. Therefore, the correct answer to the question is: CPP autoregulates between 50-150 mmHg; HTN shifts it to the right, which corresponds to option a).