Before applying a prosthesis, the area must be

Correct Answer: A

Rationale: The correct answer is A: Dry. Before applying a prosthesis, the area must be dry to ensure proper adhesion. Moisture can prevent the prosthesis from adhering effectively, leading to potential issues such as slippage or skin irritation. Options B, C, and D are incorrect because a damp, cold, or warm area can all contribute to poor adhesion and discomfort for the patient. Ensuring the area is dry is crucial for the successful application and longevity of the prosthesis.

Correct Answer: C

Rationale: The correct answer is C: Protects against the invasion of foreign substances and pathogens. The immune system functions to identify and eliminate harmful foreign substances like bacteria, viruses, and other pathogens to protect the body from infections and diseases. It does so through a complex network of cells, tissues, and organs that work together to recognize and neutralize these threats. Choices A, B, and D are incorrect because maintaining blood sugar levels is primarily regulated by the endocrine system, hormone production is regulated by the endocrine system, and body temperature regulation is controlled by the thermoregulatory system, respectively.

Correct Answer: B

Rationale: The correct answer is B: To keep the airway open for the lungs to perform air exchange. An artificial airway is used to maintain a clear passage for air to enter the lungs when a person is unable to do so independently. This helps prevent respiratory distress and ensures proper oxygenation. Choices A, C, and D are incorrect because feeding a resident, checking vital signs, or preparing for a medical test are not primary functions of an artificial airway.

Correct Answer: A

Rationale: The correct answer is A: 6 months. This is because most states require nursing assistants to take the state test within 6 months after completing their training to ensure they have recent knowledge and skills. Choice B, 12 months, is too long of a gap for testing after training. Choice C, 24 months, and choice D, 36 months, are even longer durations, which would not be beneficial for assessing the competency of nursing assistants in a timely manner. Therefore, choice A is the most appropriate timeframe for taking the state test after training.

Correct Answer: C

Rationale: Step 1: A living will is a legal document that outlines an individual's preferences for medical treatment in case they become incapacitated. Step 2: Choice C aligns with the definition of a living will as it mentions stating medical care preferences. Step 3: Choices A, B, and D are incorrect as they do not relate to the purpose of a living will. Step 4: Choice A talks about estate distribution after death, not medical care decisions. Step 5: Choice B mentions inheritance wishes, which are typically covered in a will, not a living will. Step 6: Choice D discusses financial affairs management, which is addressed in a power of attorney, not a living will. Step 7: Therefore, Choice C is the correct answer as it accurately describes the purpose of a living will in managing medical care preferences.