Correct Answer: A

Rationale: Patients with the peripheral vascular disease often sustain nerve damage as a result of inadequate tissue perfusion. Ischemic rest pain is more worrisome; it refers to pain in the extremity that is due to a combination of PVD and inadequate perfusion. Ischemic rest pain often is exacerbated by poor cardiac output. The condition is often partially or fully relieved by placing the extremity in a dependent position, so that perfusion is enhanced by the effects of gravity.

Correct Answer: A

Rationale: Diverticulosis is a condition characterized by small protrusions in the intestinal tract. To manage diverticulosis, a high-fiber diet is recommended. Foods rich in fiber help prevent constipation and reduce the risk of inflammation in the intestines. Whole grain cereals are an excellent source of fiber and can aid in maintaining bowel regularity. Eggs, cottage cheese, and fish are not high-fiber foods and may not provide the necessary dietary support for a client with diverticulosis. While protein-rich foods like eggs and fish are beneficial for overall health, they are not the primary recommendation for managing diverticulosis.

Correct Answer: A

Rationale: When caring for a patient with severe mitral regurgitation and decreased cardiac output, assessing for mental status changes is crucial. Decreased cardiac output can lead to inadequate perfusion and oxygenation of vital organs, including the brain, resulting in hypoxia. This hypoxia can manifest as mental status changes such as confusion, restlessness, or lethargy. Therefore, monitoring mental status helps in identifying potential hypoxic states and guiding appropriate interventions. The other options are incorrect as they do not directly correlate decreased cardiac output with potential hypoxia-induced mental status changes.

Correct Answer: D

Rationale: The correct answer is that the patient has an increased serum creatinine level. Dalfampridine should not be given to patients with impaired renal function as it can worsen their condition. Options A, B, and C are unrelated to the administration of dalfampridine. The fact that the patient has relapsing-remitting MS, walks for exercise, or experiences neck pain does not directly impact the decision to administer dalfampridine. However, an increased serum creatinine level is a contraindication for this medication and requires consultation with the healthcare provider to determine the appropriate course of action.

Correct Answer: B

Rationale: The correct answer is for the patient to report decreased exertional dyspnea. In idiopathic pulmonary arterial hypertension (IPAH), exertional dyspnea is a significant symptom indicating disease severity. Improvement in this symptom suggests that the medication, nifedipine, is effective in managing the condition. While nifedipine can affect blood pressure (choice A) and heart rate (choice C), these parameters are not specific indicators for monitoring IPAH improvement. Choice D, clear lung fields on the chest x-ray, does not directly correlate with the effectiveness of therapy for IPAH. Therefore, the most relevant assessment to monitor improvement in a patient with IPAH receiving nifedipine is a decrease in exertional dyspnea.