Which layer of the skin is primarily responsible for temperature regulation and cushioning of the internal organs?
Dermis
Stratum corneum
Epidermis
Subcutaneous layer
The Correct Answer is D
Choice A reason: The dermis contains collagen, elastic fibers, and sensory receptors, as well as blood vessels that assist in thermoregulation through vasodilation and vasoconstriction. However, it does not provide the primary cushioning or bulk insulation required to protect internal organs from mechanical trauma or significant environmental temperature shifts as effectively as the deeper adipose tissue layer.
Choice B reason: The stratum corneum is the outermost layer of the epidermis, consisting of dead, keratinized cells. Its primary physiological function is to serve as a barrier against environmental hazards, pathogens, and transepidermal water loss. It lacks the thickness, vascularity, and fatty composition necessary to contribute significantly to internal organ cushioning or systemic thermal insulation.
Choice C reason: The epidermis is the superficial, non-vascularized layer of the skin that provides a protective shield and regulates water retention. While it is vital for protection against external insults, it does not contain the adipose tissue needed for shock absorption or the substantial caloric reserves required for long-term maintenance of core body temperature.
Choice D reason: The subcutaneous layer, also known as the hypodermis, consists largely of adipose tissue and connective tissue. This layer acts as a highly efficient thermal insulator to retain body heat and serves as a mechanical shock absorber. This cushioning effect is essential for protecting underlying muscles, bones, and internal organs from external impact and injury.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A reason: Basing assessments on appearance leads to stereotyping and clinical bias, which can result in significant health disparities. Cultural identity is complex and internal; it cannot be determined by external physical characteristics. Assuming preferences without verification violates the principle of individualized, person-centered care and can damage the therapeutic relationship.
Choice B reason: While institutional policies provide a framework for general competence, they cannot account for the unique, individual nuances of every patient. Policies are secondary to the direct, real-time assessment of the patient's specific values. Relying solely on a manual prevents the nurse from understanding the patient's lived experience.
Choice C reason: Using the nurse’s own cultural norms as a default is a form of ethnocentrism. This can create communication barriers, as the patient may have different views on eye contact, personal space, or the involvement of family in medical decisions. The nurse must adapt to the patient's needs.
Choice D reason: Using open-ended questions allows the client to describe their health beliefs and practices in their own words. This qualitative approach uncovers specific cultural requirements regarding diet, modesty, and traditional healing. It ensures that the care plan is culturally congruent, which improves patient adherence and overall health outcomes.
Correct Answer is A
Explanation
Choice A reason: Reflection is a therapeutic communication technique that involves redirecting the client's feelings back to them. By acknowledging the expressed fear, the nurse validates the client's emotional experience and creates an open, non-judgmental space for the client to elaborate on specific concerns. This allows the nurse to identify the root cause of the anxiety and provide targeted support.
Choice B reason: Changing the subject is a non-therapeutic technique known as introducing an unrelated topic. This dismisses the client’s valid concerns and may make them feel that the nurse is uncomfortable with their emotions or is too busy to listen. It effectively shuts down communication and prevents the nurse from addressing potential psychological barriers to the client's care.
Choice C reason: Providing false reassurance by telling a client "there is nothing to worry about" is patronizing and dismissive. It minimizes the client's feelings and can damage the therapeutic relationship by breaking trust. It also discourages the client from expressing further concerns, as they may feel their natural anxiety is irrational or unwelcome in the clinical setting.
Choice D reason: While patient education is important, providing cold, detailed medical information while a client is in an acute state of fear is often ineffective. High levels of anxiety interfere with cognitive processing and the ability to retain complex information. The nurse must first address the emotional distress before the client can effectively engage with technical details about the procedure.
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