Correct Answer: B

Rationale: The correct answer is B because an incisional biopsy is typically performed to confirm a diagnosis by obtaining a sample of the tissue in question. This allows for further analysis through special studies to determine the best course of treatment. The other choices are incorrect because: A: The reason for performing an incisional biopsy is not primarily based on pain or accuracy comparisons with other testing methods. C: An incisional biopsy is not done to assess potential recovery from a mastectomy but rather to diagnose the nature of the mass. D: Age and general health status are not sole criteria for determining the need for an incisional biopsy.

Correct Answer: C

Rationale: The correct answer is C: Place the patient on respiratory isolation and inform the physician. This is the most appropriate action because the patient is exhibiting symptoms that could be indicative of a potentially infectious respiratory condition, such as tuberculosis or pneumonia. Placing the patient on respiratory isolation helps prevent the spread of infection to others and protects healthcare workers. Informing the physician promptly allows for further evaluation and appropriate treatment. Choice A is incorrect as Kaposi's sarcoma typically presents with skin lesions rather than respiratory symptoms. Choice B is incorrect as reviewing viral load and CD4+ count would not address the immediate concern of respiratory symptoms. Choice D is incorrect as oral suctioning is not the appropriate intervention for night sweats and coughing up blood.

Correct Answer: A

Rationale: The correct answer is A because effective communication in a multicultural context is essential for cultural competence. By communicating effectively, the nurse can understand and respect the patient's cultural beliefs, values, and practices. This helps in providing appropriate care tailored to the patient's cultural needs. Choice B is too vague and does not specifically address communication skills. Choice C, visiting a foreign country, does not directly demonstrate cultural competence in patient care. Choice D, speaking a different language, is important but not sufficient on its own to indicate cultural competence without effective communication skills.

Correct Answer: D

Rationale: The correct answer is D because a dyspneic patient with a tracheostomy may have difficulty speaking due to impaired airflow and mobility of the tongue. In this case, using alternative communication methods such as writing or using communication boards would be more effective. Choice A is incorrect because being blind does not directly impact communication in this scenario. Choice B is incorrect as hunger, alertness, and self-esteem do not relate to the communication challenges presented. Choice C is incorrect as depression, while important to consider, is not the primary factor impacting communication in this case.

Correct Answer: A

Rationale: The correct answer is A: Obtaining a midstream urine specimen. This task is within the scope of practice for nursing assistive personnel as it involves collecting a specimen, which is a routine and non-invasive procedure. Nursing assistive personnel are trained to perform basic tasks like specimen collection. Choices B, C, and D involve more complex skills and procedures that require specialized training and knowledge, which are typically performed by licensed nurses. Interpreting bladder scan results (B), inserting a straight catheter (C), and irrigating a catheter (D) all require a higher level of expertise and assessment that nursing assistive personnel are not qualified to do.