Tension pneumothorax can be caused by:

Correct Answer: D

Rationale: Tension pneumothorax is a life-threatening condition caused by trapped air in the pleural space, leading to increased pressure in the chest cavity. "Flail chest" can result in lung puncture and subsequent pneumothorax. Cardiac tamponade can compress the heart and cause air to enter the pleural space. Clamping a chest tube can prevent air from escaping, leading to tension pneumothorax. Therefore, the correct answer is D, as all choices can potentially cause tension pneumothorax by different mechanisms.

Correct Answer: D

Rationale: The correct answer is D: Care that it determines to be medically necessary. Medicare covers services that are deemed medically necessary based on established guidelines and standards. This ensures that resources are used efficiently and appropriately to improve patient outcomes. Choices A, B, and C are incorrect because Medicare does not cover all care requested by the recipient, doctor, or facility without considering medical necessity. It is crucial for Medicare to prioritize coverage for services that are essential for the patient's health and well-being.

Correct Answer: B

Rationale: The correct answer is B because documenting care accurately and promptly is an essential part of professional and ethical behavior for a nursing assistant. It ensures continuity of care, accountability, and patient safety. By documenting accurately, the nursing assistant provides crucial information for the healthcare team. Choice A is incorrect because keeping quiet about a mistake can lead to potential harm to the patient and goes against ethical principles of honesty and transparency. Choice C is incorrect because sharing details about residents violates patient confidentiality, a fundamental ethical principle in healthcare. Choice D is incorrect because rushing a resident through tasks compromises the quality of care and can jeopardize patient safety, which is not aligned with professional and ethical behavior.

Correct Answer: D

Rationale: Step-by-step rationale for why answer D is correct: 1. Cultural background influences communication styles, values, and norms. 2. Understanding cultural background helps the NA communicate effectively. 3. It fosters trust, respect, and empathy between the NA and the resident. 4. Enhances person-centered care and improves overall quality of care. 5. Options A, B, and C are incorrect as they do not address the core importance of cultural background in communication.

Correct Answer: A

Rationale: The correct answer is A because patient safety is the top priority in healthcare. By answering the call light promptly, the nursing assistant ensures the resident's needs are met timely, preventing any potential emergencies. B is incorrect because it delays response time. C is unnecessary unless the situation escalates. D is unsafe and neglectful.