Correct Answer: B

Rationale: In this scenario where the upper leg dressing becomes saturated with blood post-femoral popliteal bypass, the nurse's first action should be to apply pressure at the bleeding site. Applying pressure is essential to control hemorrhage and prevent further blood loss. Choice A is incorrect as wrapping the leg with elastic bandages would not address the immediate issue of controlling the bleeding. Choice C is incorrect because reinforcing the dressing and elevating the leg should come after controlling the bleeding. Choice D is incorrect as removing the dressings and re-dressing the incision should only be done after the bleeding is under control to prevent excessive blood loss.

Correct Answer: A

Rationale: Clients with neutropenia should avoid foods that may be contaminated to prevent infections. Increasing fluid intake is important to stay hydrated, but it's crucial to use safe sources like bottled water to reduce the risk of infection. Choices B, C, and D are not appropriate for a client with neutropenia. Salad bars may contain raw or unwashed produce, soft-boiled eggs may carry a risk of contamination, and buffets may have food items that are not recommended for someone with neutropenia.

Correct Answer: D

Rationale: Pediculicides are the recommended treatment for lice and should be used to eliminate the infestation.

Correct Answer: B

Rationale: In this scenario, the nurse should administer acetaminophen as ordered because a slight fever is normal after an MI. This intervention can help manage the fever unless other complications are present. Calling the health care provider immediately is not necessary for a slight fever post-MI. Sending blood, urine, and sputum for culture is not indicated solely based on a slight fever without other symptoms or signs of infection. Increasing fluid intake may be beneficial for various reasons but is not the priority in this situation where managing the fever with acetaminophen is appropriate.

Correct Answer: A

Rationale: The correct answer is A: Hypokalemia increases the risk of dysrhythmias when taking digoxin, making potassium intake crucial. Digoxin toxicity is more likely in patients with low potassium levels, leading to an increased risk of dysrhythmias. Choices B, C, and D are incorrect because hypokalemia in combination with digoxin is primarily associated with dysrhythmias rather than oliguria, irritability, anxiety, or alteration of consciousness.