A nurse is performing preoperative assessments on a client who has a suspected detached retina. Which of the following should the nurse expect to find?

A. The aortic and mitral valves are the most commonly replaced valves: This statement is accurate. The aortic and mitral valves are indeed the most commonly replaced valves in cardiac valve replacement surgeries. Aortic valve replacement is commonly performed for conditions such as aortic stenosis or regurgitation, while mitral valve replacement is often indicated for mitral regurgitation or stenosis.

B. Mitral valve insufficiency occurs during the diastolic phase of the cardiac cycle: This statement is incorrect. Mitral valve insufficiency, also known as mitral regurgitation, occurs during the systolic phase of the cardiac cycle. It involves the backflow of blood from the left ventricle into the left atrium during ventricular systole, leading to volume overload of the left atrium and potentially causing symptoms such as dyspnea and fatigue.

C. Inadequate closure of the tricuspid valve causes overload in the left ventricle: This statement is incorrect. Inadequate closure of the tricuspid valve leads to regurgitation of blood from the right ventricle back into the right atrium during ventricular systole. This condition, known as tricuspid regurgitation, causes volume overload in the right atrium and ventricle, rather than overload in the left ventricle.

D. Aortic stenosis increases right ventricular systolic pressure and decreases afterload: This statement is partially correct. Aortic stenosis indeed increases left ventricular systolic pressure and decreases afterload, not right ventricular pressure. The increased afterload on the left ventricle can lead to left ventricular hypertrophy and eventually heart failure. However, aortic stenosis does not directly affect right ventricular systolic pressure.

A. Consume foods high in potassium: Potassium deficiency can contribute to certain health issues, but it is not directly linked to hearing loss. However, maintaining a balanced diet rich in nutrients, including potassium, is important for overall health.

B. Increase oral intake of water: Hydration is essential for overall health, but increasing oral intake of water is not specifically associated with decreasing the risk of hearing loss. While staying hydrated is beneficial for various bodily functions, including maintaining proper ear function, it is not a direct preventive measure for hearing loss.

C. Avoid smoking tobacco products: Smoking tobacco products is a significant risk factor for developing hearing loss. Smoking can damage blood vessels and reduce blood flow to the inner ear, leading to hearing impairment. Therefore, advising clients to avoid smoking or quit smoking is an important lifestyle modification to decrease the risk of hearing loss.

D. Limit alcohol to two drinks daily: Excessive alcohol consumption can have detrimental effects on hearing health, including increasing the risk of hearing loss and vestibular dysfunction. Therefore, limiting alcohol intake is recommended to reduce the risk of developing hearing-related problems.