Final answer:
The nurse will monitor for postural hypotension and resulting injury in a client with hypertension prescribed a diuretic and an ACE inhibitor, as these medications can lead to increased urination and reduced blood volume.
Step-by-step explanation:
The nurse will monitor the client with newly diagnosed stage 2 hypertension who is prescribed Chlorothiazide and Benazepril for postural hypotension and resulting injury. Chlorothiazide is a diuretic which is used to treat hypertension and works by inhibiting the reabsorption of Na⁺ and Cl⁻ in the loop of Henle, leading to increased urination. Given the combination with Benazepril -- an ACE inhibitor -- the risk of orthostatic hypotension is elevated due to potential hypovolemia from the diuretic effect. The nurse should monitor the client for signs of dizziness or lightheadedness upon standing, which could lead to falls and injury.
Loop diuretics like Chlorothiazide are known to increase urination because they prevent the kidneys from reabsorbing sodium and chloride in the loop of Henle. This reduction in absorption leads to increased urine formation and a subsequent decrease in blood volume, thereby lowering blood pressure. However, this effect can also lead to orthostatic hypotension if blood volume drops too low or if the sympathetic reflex is not effective.