Final answer:
The correct statement that indicates a patient's understanding of ACE inhibitors is that they will help lower blood pressure and are beneficial for the kidneys. ACE inhibitors work by blocking the conversion of angiotensin I to angiotensin II, reducing vasoconstriction and protecting renal function.
Step-by-step explanation:
The statement by the patient that indicates understanding of the nurse's teaching about an angiotensin-converting enzyme (ACE) inhibitor is: "This drug will help lower my blood pressure and will benefit my kidneys." ACE inhibitors are medications that help manage hypertension by blocking the conversion of angiotensin I to angiotensin II, a potent vasoconstrictor which raises blood pressure. This blockade results in the vasodilation of blood vessels, leading to lower blood pressure. Additionally, these drugs have a protective effect on the kidneys by reducing the constriction of blood vessels within the kidney, thereby enhancing renal blood flow and function.