Before a cancer receiving total parenteral nutrition (TPN) resumes a normal diet, the nurse teaches him about dietary sources of minerals. Which foods are good sources of zinc?

Correct Answer: D

Rationale: Zinc is an essential mineral that plays a crucial role in immune function, wound healing, and overall growth and development. Good dietary sources of zinc include whole grains and meats. Whole grains such as wheat and rice contain moderate amounts of zinc, while meats such as beef, pork, and chicken are rich sources of this mineral. Including these foods in the diet can help ensure an adequate intake of zinc, especially for individuals who have increased nutritional needs like cancer patients receiving TPN.

Correct Answer: D

Rationale: Understanding discharge instructions is one of the key criteria for discharging patients following surgery in an ambulatory setting. It ensures that the patient comprehends how to care for themselves post-surgery and reduces the risk of complications or the need for readmission. While the other options may also be important factors, having a clear understanding of discharge instructions is crucial for the patient's recovery and overall well-being.

Correct Answer: B

Rationale: Morphine is given in acute pulmonary edema to decrease pulmonary capillary pressure. By reducing pulmonary capillary pressure, morphine helps to redistribute the pulmonary circulation to the periphery, leading to improved oxygenation and decreased symptoms of pulmonary edema. Morphine works to vasodilate the blood vessels, which ultimately helps decrease the pressure in the pulmonary capillaries, allowing for improved blood flow to the periphery of the lungs. This redistribution of pulmonary circulation helps to alleviate the congestion and fluid buildup in the lungs that occurs in acute pulmonary edema.

Correct Answer: A

Rationale: Right-sided heart failure is characterized by the inability of the right side of the heart to pump blood effectively, leading to fluid accumulation in the systemic venous system. This fluid overload typically manifests as signs of congestion in the peripheral tissues. Dependent pitting edema is a classic symptom of right-sided heart failure, where swelling is noted in the lower extremities and sacral area, worsening later in the day due to the effects of gravity. Orthopnea (B) and exertional dyspnea (C) are more indicative of left-sided heart failure, where congestion occurs in the pulmonary system. Hemoptysis (D) refers to coughing up blood and is not a classic symptom of heart failure but may be seen in conditions such as pulmonary embolism or infection.

Correct Answer: A

Rationale: Regular aerobic exercise is an essential lifestyle modification to help control hypertension. Exercise can help lower blood pressure, improve cardiovascular health, and reduce the risk of developing hypertension. Physical activity strengthens the heart, making it more efficient in pumping blood, which can lead to lower blood pressure levels. Additionally, exercise helps in weight management, which is crucial in controlling hypertension as obesity is a significant risk factor for high blood pressure. Overall, incorporating regular aerobic exercise into a patient's routine can significantly contribute to better blood pressure control and overall health.