The nurse is caring for a patient diagnosed with essential hypertension. The health care provider prescribes blood pressure medication that the nurse administers. The nurse then monitors the patient's blood pressure for several days to help determine effectiveness. Which system component is the nurse evaluating?

A) Input
B) Output
C) Content
D) Feedback

Essential Hypertension

High blood pressure with no identifiable cause, also known as primary hypertension, which may be influenced by genetic or environmental factors.

Blood Pressure

The pressure of circulating blood on the walls of blood vessels, an important indicator of heart health.

Effectiveness

The degree to which a process, intervention, or action achieves its intended result or outcome.