The nurse is providing care for a client diagnosed with cardiovascular disease and hypertension who is complaining of chest pain. Which medication should the nurse administer?

Choice A reason: Chlorthalidone and atenolol are used to treat hypertension⁴⁵. However, administering the medication when the blood pressure is 90/60 might not be advisable. This is because atenolol, a beta-blocker, can further lower the heart rate and blood pressure¹¹⁷. Therefore, it's important to monitor the patient's blood pressure before administration¹.

Choice B reason: Atenolol can slow the heart rate¹¹⁷. If the heart rate is already less than 60 beats per minute, which is the lower limit of the normal range¹, the medication should be held and the healthcare provider should be notified⁵.

Choice C reason: One of the side effects of atenolol and chlorthalidone is dizziness or lightheadedness¹¹⁷. Teaching the patient to dangle their feet before standing can help prevent orthostatic hypotension, a form of low blood pressure that happens when you stand up from sitting or lying down¹¹.

Choice D reason: Chlorthalidone is a diuretic that can cause the body to lose potassium¹¹⁷. However, atenolol does not have this effect⁵. Therefore, it's not necessary to limit the intake of potassium-rich foods unless advised by a healthcare provider.

Choice E reason: Monitoring fluid intake and output is important when administering diuretics like chlorthalidone⁵. This can help ensure the patient is not becoming dehydrated and help monitor the medication's effectiveness¹¹.

Choice A reason: This is the most concerning result for the nurse. Creatinine is a waste product of muscle metabolism that is filtered by the kidneys and excreted in the urine. A high creatinine level indicates impaired kidney function, which can be a complication of hypertension. The normal range of creatinine is 0.6 to 1.2 mg/dL for men and 0.5 to 1.1 mg/dL for women. A creatinine level of 3.2 mg/dL is more than twice the upper limit of normal and suggests severe kidney damage.

Choice B reason: This is not a concerning result for the nurse. Potassium is an electrolyte that is essential for the function of nerves and muscles, especially the heart. The normal range of potassium is 3.5 to 5.0 mEq/L. A potassium level of 3.4 mEq/L is slightly below the normal range, but not enough to cause serious problems. A low potassium level can be caused by diuretics, vomiting, diarrhea, or excessive sweating. The nurse should monitor the client's potassium level and symptoms, and advise the client to eat foods that are high in potassium, such as bananas, oranges, potatoes, and tomatoes.

Choice C reason: This is not a concerning result for the nurse. Hemoglobin is a protein in the red blood cells that carries oxygen to the tissues. The normal range of hemoglobin is 13.5 to 17.5 g/dL for men and 12.0 to 15.5 g/dL for women. A hemoglobin level of 12.8 g/dL is within the normal range for women and slightly below the normal range for men, but not enough to cause significant anemia. A low hemoglobin level can be caused by blood loss, iron deficiency, or bone marrow disorders. The nurse should assess the client's history, diet, and symptoms, and check for other signs of anemia, such as pallor, fatigue, and shortness of breath.

Choice D reason: This is not a concerning result for the nurse. Blood urea nitrogen (BUN) is a waste product of protein metabolism that is filtered by the kidneys and excreted in the urine. A high BUN level indicates impaired kidney function or dehydration. The normal range of BUN is 7 to 20 mg/dL. A BUN level of 20 mg/dL is at the upper limit of normal, but not enough to indicate serious kidney problems. The nurse should ensure that the client is well hydrated and monitor the client's urine output and specific gravity.