Chapter 42: Alterations of the Integument in Children Huether & McCance: Understanding Pathophysiology, 6th Edition Study Guide With Correct Answers Graded A+

Acne vulgaris involves inflammation of the: a. hair follicles. b. sebaceous follicles. c. eccrine glands. d. apocrine glands. - ANS: B Acne is a disorder of the pilosebaceous units, known as sebaceous follicles. Acne is not associated with inflammation of hair follicles, eccrine glands, or apocrine glands. REF: p. 1084 A 4-month-old brought to his primary care provider for severe itching and skin lesions is diagnosed with atopic dermatitis. Which of the following would be elevated in this patient? a. Immunoglobulin D (IgD) b. Immunoglobulin M (IgM) c. Immunoglobulin E (IgE) d.Immunoglobulin G (IgG) - ANS: C Most individuals affected with atopic dermatitis show an increased serum IgE level. Neither IgD, IgM, nor IgG would be elevated. REF: p. 1085 A 4-month-old is diagnosed with atopic dermatitis (AD). Which assessment finding will most likely support this diagnosis? a. Blistering b. Moist reddened skin c. Dry, itchy skin d. White patches - ANS: C AD has a constellation of clinical features that include dry, sensitive, itchy, and easily irritated skin because the barrier function of the skin is impaired. Blistering, moist skin is not associated with AD. White patches are characteristic of other disorders, such as measles. REF: p. 1085 A 14-year-old presents with severe acne. Which of the following promotes acne development? a. Androgens b. Estrogens c. Gonadotropins d.Glucocorticoids - ANS: A Androgens, not estrogens, increase the size and productivity of the sebaceous glands and promote P. acnes. Neither gonadotropins nor glucocorticoids increase the size and productivity of the sebaceous glands and promote P. acnes. REF: p. 1084 Bullous impetigo is caused by a strain of: a. Staphylococcus aureus. b. Molluscum contagiosum. c. Escherichia coli. d. Candida albicans. - ANS: A