Correct Answer: A

Rationale: The correct answer is A: Bananas. Bananas are high in potassium, which should be limited in clients with heart failure to prevent electrolyte imbalances. While leafy green vegetables and whole grains are generally healthy options, they are not typically restricted in heart failure patients. Potatoes, although they contain potassium, are not as high in potassium as bananas and are not usually restricted as strictly.

Correct Answer: A

Rationale: The correct answer is A. In older adults, key signs of a UTI often include confusion and increased temperature. Confusion is a common symptom in the elderly when they have a UTI, and an increase in body temperature can indicate an infection. Choices B, C, and D are incorrect because while painful urination and frequent urination are common UTI symptoms in general, they may not be as prominent in older adults. Dizziness, headache, back pain, and fever can be associated with other conditions but are not typically key signs of a UTI in older adults.

Correct Answer: D

Rationale: In a situation where a verbal prescription for restraints is obtained for a client experiencing acute mania, the nurse should document the client's condition every 15 minutes. This frequent documentation allows for accurate monitoring of the client's condition, ensuring safety and compliance. Requesting a renewal of the prescription every 8 hours (Choice A) is not necessary as the focus should be on monitoring the client's condition. Checking the client's peripheral pulse rate every 30 minutes (Choice B) is not directly related to the need for restraints in this scenario. Obtaining a prescription for restraint within 4 hours (Choice C) is not a priority when a verbal prescription is already obtained and immediate action is needed for the client's safety.

Correct Answer: B

Rationale: Corrected Rationale: Low prealbumin levels are indicative of malnutrition, which is common in individuals with anorexia nervosa. Iron levels, serum creatinine, and calcium levels are not typically affected in the same way by anorexia nervosa, making choices A, C, and D incorrect.

Correct Answer: D

Rationale: Low back pain is a classic sign of a hemolytic transfusion reaction and requires immediate intervention. Chills are more commonly associated with a febrile non-hemolytic transfusion reaction. Bradycardia is not a typical sign of a hemolytic transfusion reaction. Hypertension is not a common finding in a hemolytic transfusion reaction.