The nurse is teaching a health promotion class for adults about the effects of sun exposure on skin. Which statement about the function of collagen is correct?
It is the main structural component of the dermis which provides strength and elasticity.
It increases skin elasticity with the aging process.
It forms the ridges and valleys which provide traction for grasping objects and surfaces.
It is an extensive network of blood vessels that regulates body temperature.
The Correct Answer is A
A. It is the main structural component of the dermis which provides strength and elasticity. Collagen is the primary protein in the dermis, responsible for maintaining skin strength, firmness, and elasticity. Sun exposure damages collagen fibers, leading to wrinkles, sagging skin, and premature aging.
B. It increases skin elasticity with the aging process. Collagen production decreases with age, leading to reduced skin elasticity and increased wrinkle formation. Sun damage accelerates this process by breaking down collagen fibers.
C. It forms the ridges and valleys which provide traction for grasping objects and surfaces. Friction ridges (fingerprints) are formed by the dermal papillae, not collagen. They provide grip and are genetically determined.
D. It is an extensive network of blood vessels that regulates body temperature. The dermis contains a network of blood vessels for temperature regulation, but this function is not related to collagen. Instead, collagen provides structural support to the skin.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["B","D","E"]
Explanation
A. Explain that the child is likely to grow into her weight. This is incorrect because a BMI at the 85th percentile indicates that the child is overweight. Without intervention, the risk of continued excess weight gain and future obesity increases.
B. Obtain the child's 3-day diet history based on the mother's input. Assessing the child's dietary habits helps identify potential areas for improvement, such as reducing sugary drinks or increasing fruit and vegetable intake. Understanding the child’s nutrition is essential for developing a healthy eating plan.
C. Tell the mother that girls hit their growth spurt before boys so eating more is expected. While girls do experience growth spurts earlier than boys, this does not justify excessive weight gain. Encouraging healthy eating and physical activity is more appropriate than assuming the child will "grow out of it."
D. Inquire as to whether or not the school has a physical education program. School-based physical activity plays an important role in weight management. If the school lacks a structured program, additional strategies for physical activity should be explored.
E. Determine the child's usual physical activity pattern. Assessing the child’s activity level helps identify if sedentary behaviors (e.g., excessive screen time) are contributing to weight gain. Encouraging regular physical activity is a key part of managing childhood obesity.
Correct Answer is C
Explanation
A. Brown, rough, greasy, wart-like papules on the face. These describe seborrheic keratosis, a benign skin growth, which is unrelated to overexposure from PUVA therapy.
B. Requires sunglasses because sunlight hurts eyes. PUVA therapy increases sensitivity to light, and clients are advised to wear sunglasses. However, light sensitivity alone does not indicate overexposure. Severe overexposure could cause ocular damage or photokeratitis, but this symptom alone is not diagnostic of excessive treatment.
C. Tenderness upon palpation and generalized erythema. Overexposure to PUVA therapy can cause phototoxic reactions, including skin tenderness, erythema (similar to a sunburn), and blistering. These signs indicate that the client has received too much ultraviolet A (UVA) exposure, requiring treatment adjustments to prevent further skin damage.
D. Thick skin plaques topped by silvery white scales. These are classic symptoms of psoriasis vulgaris and do not indicate overexposure. In fact, PUVA therapy is used to reduce these plaques, not cause them.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.
