Correct Answer: D

Rationale: An evidence-based nursing journal is the correct choice for the nurse to obtain information about the prevalence of Tay-Sachs disease. These journals contain peer-reviewed research and studies conducted by experts in the field, providing accurate and reliable information. Choice A, the client's health care provider, may have general information but may not provide detailed prevalence data. Choice B, a collaborative, user-edited website, is not a reliable source as the information may be inaccurate or outdated. Choice C, the facility's case manager, is unlikely to have specific prevalence data on Tay-Sachs disease.

Correct Answer: C

Rationale: Dermatitis can closely resemble and mimic dandruff due to similar symptoms like flaking and itching. Lice infestation (choice A) is characterized by the presence of lice and their eggs attached to the hair shaft, different from dandruff. Scabies (choice B) is a contagious skin condition caused by mites, presenting as burrows, rashes, and intense itching, not typically resembling dandruff. Acne vulgaris (choice D) is a skin condition involving hair follicles and sebaceous glands, manifesting as pimples and inflammation, which is distinct from dandruff.

Correct Answer: D

Rationale: An adolescent with a closed head injury is at the highest risk for papilledema due to increased intracranial pressure. Papilledema is often a consequence of elevated intracranial pressure, which can occur in conditions like head trauma. Choices A, B, and C do not directly correlate with an increased risk of papilledema compared to a closed head injury, which is more likely to lead to elevated intracranial pressure and subsequent papilledema.

Correct Answer: B

Rationale: Piaget is indeed credited with the stages of cognitive development. Jean Piaget, a renowned psychologist, proposed a theory of cognitive development that outlines distinct stages through which children develop intellectually. Erikson, Freud, and Lister are not associated with the stages of cognitive development. Erikson is known for his psychosocial stages, Freud for psychosexual stages, and Lister for contributions to the field of medicine.

Correct Answer: B

Rationale: Cultural competence in healthcare involves understanding and respecting cultural differences to provide effective and respectful care to patients from diverse backgrounds. Choice A is incorrect as ignoring cultural differences goes against the principles of cultural competence. Choice C is wrong because enforcing cultural norms can be culturally insensitive and may not align with the patient's beliefs. Choice D is also incorrect as cultural competence encompasses more than just medical knowledge, including communication, empathy, and awareness of cultural factors.