A client who has chronic stable angina is being discharged. Which statement by the client indicates an understanding of the discharge teaching?

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.

Choice A reason: Stopping the medication if the client develops a change in vision is not the information that the nurse should provide in the teaching about rosuvastatin. Rosuvastatin is a drug that lowers the cholesterol and prevents the complications of cardiovascular disease. It belongs to a class of drugs called statins, which work by inhibiting an enzyme that produces cholesterol in the liver. Change in vision is not a common or serious side effect of rosuvastatin, and it may be caused by other factors, such as eye strain, infection, or disease. The nurse should not advise the client to stop the medication without consulting the healthcare provider, as this may increase the risk of adverse outcomes, such as heart attack or stroke.

Choice B reason: Monitoring body weight weekly is not the information that the nurse should provide in the teaching about rosuvastatin. Rosuvastatin is a drug that lowers the cholesterol and prevents the complications of cardiovascular disease. It belongs to a class of drugs called statins, which work by inhibiting an enzyme that produces cholesterol in the liver. Body weight is not a direct indicator of the effectiveness or safety of rosuvastatin, and it may fluctuate due to various factors, such as diet, exercise, or fluid retention. The nurse should encourage the client to maintain a healthy weight and lifestyle, but not to focus on the weekly changes in body weight.

Choice C reason: Reporting muscle weakness or pain is the information that the nurse should provide in the teaching about rosuvastatin. Rosuvastatin is a drug that lowers the cholesterol and prevents the complications of cardiovascular disease. It belongs to a class of drugs called statins, which work by inhibiting an enzyme that produces cholesterol in the liver. However, statins can also cause muscle damage, which can manifest as weakness, pain, tenderness, or cramps. This can be a sign of a serious condition called rhabdomyolysis, which is the breakdown of muscle tissue that can lead to kidney failure or death. The nurse should instruct the client to report any muscle symptoms to the healthcare provider as soon as possible, and to avoid taking any other drugs or supplements that may interact with rosuvastatin and increase the risk of muscle damage.

Choice D reason: Having biannual renal function studies is not the information that the nurse should provide in the teaching about rosuvastatin. Rosuvastatin is a drug that lowers the cholesterol and prevents the complications of cardiovascular disease. It belongs to a class of drugs called statins, which work by inhibiting an enzyme that produces cholesterol in the liver. Renal function studies are tests that measure the health and function of the kidneys, which are responsible for filtering the blood and removing waste and excess fluid. Rosuvastatin is not known to cause significant kidney damage, and it is excreted mainly by the liver. The nurse should not recommend the client to have biannual renal function studies, as this may be unnecessary and costly. The nurse should advise the client to follow the healthcare provider's orders regarding the frequency and type of laboratory tests that are needed to monitor the effects of rosuvastatin.