Correct Answer: C

Rationale: The correct answer is C: Position lower extremities below level of heart. This intervention helps improve blood flow and perfusion to the lower extremities by utilizing gravity to assist in venous return. This is crucial for clients at risk for ineffective tissue perfusion post-cardiac surgery. A: Restricting fluid intake may lead to dehydration, which can worsen tissue perfusion. B: Ensuring the client avoids prolonged sitting is important for preventing blood clots, but it does not directly address tissue perfusion. D: Instructing the client to avoid leg exercises may hinder circulation and exacerbate issues related to tissue perfusion.

Correct Answer: A

Rationale: The correct answer is A: Cancerous lumps. Breast self-examination aims to detect any abnormal changes in the breasts, including potential cancerous lumps. Detecting cancerous lumps early increases the chances of successful treatment and improved outcomes. Choices B, C, and D are incorrect because while changes from previous self-examinations, areas of thickness or fullness, and fibrocystic masses can be important to note, the primary goal of breast self-examination is to identify any signs of breast cancer, such as cancerous lumps.

Correct Answer: B

Rationale: The correct answer is B: Use barrier techniques. When taking the blood pressure of a client with AIDS, using barrier techniques such as gloves and disposable equipment is crucial to prevent the transmission of the virus through blood or bodily fluids. Wearing a mask and gown (choice A) may not be necessary unless there is a risk of splashes or sprays. Washing hands thoroughly (choice C) is important, but alone may not provide sufficient protection. Choice D is incomplete.

Correct Answer: C

Rationale: The correct answer is C: Immediate recognition of respiratory distress. This is crucial when caring for a client with influenza as the virus can lead to respiratory complications. Prompt recognition allows for timely intervention and prevents further deterioration. A: Maintaining airborne transmission is incorrect as the goal is to prevent the spread of influenza through droplet precautions, not airborne transmission. B: Oxygen administration may be necessary for severe cases of influenza, but immediate recognition of respiratory distress takes precedence in the nursing interventions. D: Complete bed rest is not recommended for influenza as mobilization and deep breathing exercises are important to prevent complications like pneumonia.

Correct Answer: C

Rationale: The correct answer is C because it is essential for the nurse to ensure accurate and up-to-date vital signs before administering medications. By asking the NAP to record the patient's vital signs, the nurse can make informed decisions about the patient's condition and prevent any potential complications. Choice A is incorrect because administering medications without knowing the patient's vital signs, particularly if they are abnormal, can be dangerous. Choice B is not the best course of action as it delays the crucial step of obtaining the vital signs. Choice D is incorrect as omitting vital signs without assessment could compromise patient safety. Therefore, choice C is the most appropriate response to ensure patient well-being and medication safety.