A nurse is assessing a client who has risk factors for developing heart disease. Which of the following factors does the nurse recognize as a modifiable risk factor?

A. A feeling of swelling in the feet: Swelling in the feet can be caused by various factors such as fluid retention, circulatory issues, or certain medical conditions like venous insufficiency. It is not a typical symptom of anaphylaxis, which usually involves more generalized symptoms such as hives, itching, swelling of the face or throat, difficulty breathing, and a drop in blood pressure.

B. Pain at the injection site: Pain at the injection site is a common side effect of receiving an injection or medication. It occurs due to tissue irritation or trauma from the needle. While allergic reactions can cause localized redness, swelling, or itching at the injection site, severe pain alone is not a hallmark symptom of anaphylaxis.

C. A sudden decrease in heart rate: Anaphylaxis typically leads to an increase in heart rate (tachycardia) rather than a decrease. This increase in heart rate is a response to the body's attempt to compensate for the drop in blood pressure caused by anaphylaxis. Bradycardia (a decrease in heart rate) is not a typical feature of anaphylaxis unless it occurs very late in a severe reaction due to profound circulatory collapse.

D. A sharp decrease in blood pressure: This choice is indicative of an understanding of possible anaphylaxis. Anaphylaxis can cause a rapid and severe drop in blood pressure, known as hypotension. This drop in blood pressure is often a key feature of anaphylaxis and can lead to symptoms such as dizziness, fainting, confusion, and shock.

A. "Walk for 30 minutes three to five times each week."

Regular weight-bearing exercises, such as walking, are beneficial for maintaining bone density and reducing the risk of osteoporosis. Walking for 30 minutes three to five times per week can help strengthen bones, improve balance, and reduce the risk of fractures associated with osteoporosis.

B. "Perform water aerobics three times each week": While water aerobics is a beneficial form of exercise for overall health and fitness, it may not be as effective as weight-bearing exercises like walking for preventing osteoporosis. Water-based activities do not provide the same impact on bone density as weight-bearing exercises.

C. "Maintain a lean body mass": While maintaining a healthy body weight is important for overall health, particularly for reducing the risk of conditions like heart disease and diabetes, it may not specifically prevent osteoporosis. In fact, having a low body weight or being underweight can increase the risk of osteoporosis.

D. "Increase intake of vitamin B12": Vitamin B12 is important for various bodily functions, including nerve function and the formation of red blood cells, but it is not directly linked to the prevention of osteoporosis. Adequate calcium and vitamin D intake, along with weight-bearing exercise, are key factors in preventing osteoporosis.