Final answer:
A nurse should monitor the patient's blood pressure when giving Propranolol, as the medication can cause decreased blood pressure. They may also observe respiratory rate and blood glucose levels. Propranolol's effects are related to mechanisms involving aldosterone, which regulates blood pressure by controlling sodium and water balance.
Step-by-step explanation:
When a nurse is administering Propranolol, which is a beta-blocker, they should monitor the patient's blood pressure closely. Propranolol can cause a decrease in blood pressure, so it is essential to ensure the patient remains within a safe range. Additionally, because Propranolol can also affect the respiratory rate, particularly in patients with preexisting respiratory conditions, this is also monitored. Blood glucose levels should be observed as well especially in diabetic patients, as Propranolol can mask the symptoms of hypoglycemia.
Related to the concepts of blood pressure regulation, it is noteworthy that a decreased blood pressure prompts the release of renin from the kidneys, which then contributes to the production of aldosterone. This hormone assists in the regulation of sodium and water balance, which can affect blood pressure. Aldosterone prompts the kidneys to reabsorb sodium, which can lead to increased blood volume and thus an increase in blood pressure.