A nurse is caring for a client who has hypertension and asks the nurse about a prescription for propranolol. The nurse should inform the client that this medication is contraindicated in clients who have a history of which of the following conditions?

Choice A reason: The extra letters after the name of the medication do not mean it is a stronger dose, but that it is a combination of two different medications. Metoprolol is a beta-blocker that lowers blood pressure and heart rate, while hydrochlorothiazide is a diuretic that reduces fluid retention and blood volume. The combination of these two medications may have a synergistic effect and lower blood pressure more effectively than either one alone.

Choice B reason: The client will have to do some things differently because it is not the same medication, but a combination of two medications. The client will have to monitor their blood pressure, weight, fluid intake, and electrolyte levels more closely, as the addition of hydrochlorothiazide may increase the risk of dehydration, hypotension, and hypokalemia. The client will also have to avoid alcohol, salt, and potassium supplements, as they may interact with the medication and affect its efficacy or safety.

Choice C reason: The client will still have to diet to lose weight, as the medication does not cause weight loss, but may cause weight gain due to fluid retention. The client will have to follow a healthy diet that is low in sodium, fat, and cholesterol, as these may worsen hypertension and increase the risk of cardiovascular complications. The client will also have to exercise regularly, as this may help lower blood pressure and improve overall health.

Choice D reason: The client may experience fewer side effects with the new medication, as the combination of metoprolol and hydrochlorothiazide may lower the dose and frequency of each medication, and reduce the adverse effects of each one. For example, metoprolol may cause fatigue, dizziness, or bradycardia, while hydrochlorothiazide may cause dry mouth, headache, or gout. The combination of these two medications may balance out these effects and improve the client's tolerance and compliance.

Choice A reason: The nurse collects a urine specimen is an appropriate action, as it can help detect the presence of hemoglobinuria, which is a sign of hemolysis. Hemoglobinuria is the excretion of hemoglobin in the urine, which can cause the urine to appear red or brown.

Choice B reason: The nurse sends a blood specimen to the laboratory is an appropriate action, as it can help confirm the diagnosis of a hemolytic reaction and identify the cause. The laboratory can perform tests such as blood typing, cross-matching, direct antiglobulin test (DAT), and serum bilirubin.

Choice C reason: The nurse initiates an infusion of 0.9% sodium chloride is an appropriate action, as it can help maintain the client's fluid and electrolyte balance and prevent hypovolemic shock. 0.9% sodium chloride is the preferred solution for blood transfusion reactions, as it is isotonic and compatible with blood products.

Choice D reason: The nurse starts the transfusion of another unit of blood product is an inappropriate action, as it can worsen the client's condition and increase the risk of complications. The nurse should not resume the transfusion until the cause of the reaction is determined and the provider orders a new unit of blood product. The nurse should also return the unused blood product and tubing to the blood bank for analysis.