The nurse is careful to apply only the prescribed amount of ointment to the skin of a 2-month-old.
How is infant skin different from adult skin?
Less perfusion.
Greater moisture.
More perspiration.
Greater absorption.
Greater absorption.
The Correct Answer is D
Choice A rationale
Infant skin has greater perfusion compared to adult skin due to a higher ratio of capillaries to surface area. This increased blood flow contributes to the infant's ability to dissipate heat but also makes their skin more susceptible to flushing and temperature changes.
Choice B rationale
While infants have a higher percentage of total body water, their stratum corneum, the outermost layer of skin, is thinner and has a lower lipid content, leading to a higher transepidermal water loss compared to adults. This makes their skin more prone to dryness.
Choice C rationale
Infants have a higher density of eccrine sweat glands, but their thermoregulatory system is immature. They are less efficient at perspiring and have a higher risk of hyperthermia. Their sweat glands are not fully developed or functional, which is different from increased perspiration.
Choice D rationale
Infant skin has a thinner stratum corneum and a higher surface area-to-weight ratio compared to adult skin. This anatomical difference results in a greater percutaneous absorption of topical medications and other substances. This is why care must be taken with the amount of medication applied.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale
There is no known or documented significant drug-food interaction between griseofulvin and citrus fruits or juice. Griseofulvin absorption is actually enhanced by a high-fat meal. The biological mechanism of action for griseofulvin does not involve competition with compounds found in citrus.
Choice B rationale
Shellfish allergies are a common food allergy, but there is no specific interaction between griseofulvin, an antifungal, and shellfish consumption. Griseofulvin's mechanism of action involves disrupting fungal mitosis, which is not affected by dietary intake of shellfish.
Choice C rationale
Alcohol consumption while taking griseofulvin can lead to a disulfiram-like reaction, which is a severe adverse response. This reaction is characterized by flushing, headache, nausea, vomiting, and a rapid heartbeat. The exact mechanism is not fully understood, but it is a significant and dangerous interaction.
Choice D rationale
Griseofulvin is an antifungal medication, while corticosteroids are anti-inflammatory and immunosuppressive agents. There is no known direct pharmacological interaction between these two drug classes. Taking them concurrently is not contraindicated, although they treat different conditions.
Correct Answer is B
Explanation
Choice A rationale
Assessing the client's support system is a valuable step, but it is not the best initial action. Overwhelmed clients need to feel a sense of control over their situation before they can effectively utilize external support. Focusing on one manageable change empowers the client, which is a more immediate and effective intervention for dealing with feelings of being overwhelmed.
Choice B rationale
Overwhelmed clients often feel a lack of control and competence. By assisting the client to identify and focus on a single, achievable lifestyle change, the nurse can help the client experience a sense of mastery and success. This positive experience can build confidence and motivation, making it more likely for the client to attempt and sustain further lifestyle changes.
Choice C rationale
While understanding a client's stressors is important for holistic care, this information may further overwhelm a client who is already feeling burdened. The immediate priority is to help the client feel capable of making a change. By first focusing on one small, manageable step, the nurse can begin to empower the client and then address broader stressors later.
Choice D rationale
Inquiring about delegating obligations may not be practical or appropriate for many clients and does not directly address the core issue of feeling overwhelmed by lifestyle changes. This suggestion externalizes the problem and does not empower the client to take control of their health. The focus should be on internal motivation and self-efficacy, not simply shifting responsibilities.
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