chapter 47 Review Questions

Review Questions - Chapter 47 1. 1. ID: 25066830703 Which form of acne is highly inflammatory and may cause disfiguration with the formation of communicating cysts? A. Vulgaris B. Conglobata Correct C. Inflammatory D. Noninflammatory Acne conglobata is a highly inflammatory form of severe, disfiguring acne with the formation of communicating cysts. Acne vulgaris is the most common skin disease, affecting 85% of the population between 12 and 25 years of age. Noninflammatory acne results in lesions that are either closed or open comedones. Inflammatory acne develops in closed comedones when the follicular wall ruptures. Awarded 0.0 points out of 1.0 possible points. 2. 2. ID: 25066830708 Which pathogen is associated with diaper dermatitis? A. Candida albicans Correct B. Group A Streptococcus pyogenes C. Staphylococcus aureus D. Tinea pedis C. albicans is associated with diaper dermatitis. Several factors cause diaper dermatitis, including urine, feces, and airtight plastic diaper covers. Tinea pedis is a fungal infection of the feet. Both group A S. pyogenes and S. aureus may cause impetigo. Awarded 0.0 points out of 1.0 possible points. 3. 3. ID: 25066830713 Which disease causes a disruption of desmosomal adhesion molecules as a result of a toxin called exfoliative toxin (ET)? A. Vesicular impetigo B. Bullous impetigo Correct C. Tinea corporis D. Thrush Bullous impetigo is a rare variant of impetigo caused by S. aureus . This bacterium produces a toxin called exfoliative toxin , which causes a disruption in the desmosomal adhesion molecules. Bullous impetigo is highly contagious. Vesicular impetigo is a contagious, acute, superficial form caused by group A S. pyogenes . Tinea corporis is fungal infection that affects a nonhairy body surface. Thrush is a fungal infection of the mucous membranes in the mouth. Awarded 0.0 points out of 1.0 possible points. 4. 4. ID: 25066830718

Which disease is associated with Koplik spots over the buccal mucosa? A. Roseola B. Rubella C. Rubeola Correct D. Varicella Rubeola, or the red measles, is a viral disease. It exhibits a high fever, malaise, enlarged lymph nodes, runny nose, and Koplik spots. Koplik spots are pinpoint white spots with an erythematous ring that are found on the buccal mucosa. Roseola is a presumed viral infection of infants between the ages of 6 months and 2 years. A sudden onset of fever usually develops and lasts 3–5 days, and then the rash becomes evident. Rubella has a faint pink-to-red maculopapular rash that develops on the face and spreads to the trunk and extremities in 1–4 days after the onset of symptoms. Varicella (chickenpox) has a rash that is vesicular in nature, with lesions in various stages of maturation. Awarded 0.0 points out of 1.0 possible points. 5. 5. ID: 25066830723 Which statement is true concerning scabies infection? A. Pediculosis capitis, pediculosis corporis, and Phthirus pubis are the three species that cause scabies. B. A blood-sucking, nocturnal parasite of man causes scabies. C. Burrows and papules are characteristics of a scabies infection. Correct D. Fleas cause a scabies infection. Burrows and papules are characteristics of a scabies infection. Sarcoptes scabiei cause a scabies infection. Pediculus humanus capitis , pediculus humanus corporis , and Phthirus pubis are three species of lice. Bedbugs are nocturnal blood-sucking parasites. Awarded 0.0 points out of 1.0 possible points. 6. 6. ID: 25066830728 Which organism lives in the crevices and cracks of floors, walls, and furniture, and in bedding or furniture stuffing? A. Bedbug Correct B. Lice C. Flea D. Mite Bedbugs live in the crevices and cracks of floors, walls, and furniture, and in bedding or furniture stuffing. They are nocturnal, emerging to feed in the darkness; they are attracted by warmth and carbon dioxide and attach to the skin to suck blood. Lice live on human

A. Strawberry hemangioma B. Cavernous hemangioma Correct C. Port-wine stain D. Salmon patche Cavernous hemangiomas are present at birth and have larger and more mature vessels within the lesion. They appear mostly on head and neck and have less distinct borders. Strawberry hemangiomas usually emerge 3–5 weeks after birth, are bright red, and are elevated with capillary projections. Port-wine stains are flat pink to dark reddish purple lesions that are present at birth or shortly thereafter. Salmon patches are macular, pink lesions that are present at birth and located on the head and neck. Awarded 0.0 points out of 1.0 possible points. 10.10. ID: 25066830748 Which statement related to Staphylococcal scalded-skin is correct? A. Is usually seen in late aged teenagers B. Is caused by streptococcus that produce an exfoliative toxin C. A source of the disease in neonates may be healthcare workers. Correct D. The typical symptoms begin with nausea, vomiting, and a headache. Staphylococcal scalded-skin syndrome (SSSS) is the most serious staphylococcal infection that affects the skin and is usually seen in infants and children younger than 5 years of age. SSSS is caused by virulent group II strains of staphylococci that produce an exfoliative toxin. A source of the infection in neonates may be from health care workers who are nasal carriers of the microorganism. This reinforces the need for good infection control practices with all neonates. The clinical symptoms begin with fever, malaise, rhinorrhea, and irritability followed by generalized erythema with exquisite tenderness of the skin. Awarded 0.0 points out of 1.0 possible points. 11.11. ID: 25066830753 Which statement about thrush is correct? A. Thrush occurs in children and adults equally. B. Thrush begins white plaques or spots in the mouth. Correct C. The disease symptoms stay in the area of original infection, without spreading. D. Is typically caused by Staphylococcus aureus. Thrush is the term used to describe the presence of Candida albicans in the mucous membranes of the mouth of infants. It occurs

less commonly in adults and they are usually immunocompromised. Thrush is characterized by the formation of white plaques or spots in the mouth that lead to shallow ulcers caused by keratolytic proteases from the microorganism. The infection commonly spreads to the groin, buttocks, and other parts of the body. Treatment may be difficult and include oral antifungal washes, such as nystatin oral suspension. Awarded 0.0 points out of 1.0 possible points. 12.12. ID: 25066830758 Which statements regarding scabies, sarcoptes scabiei, are true ? (Select all that apply.) A. The three types of scabies include pediculus capitis, pediculus corporis, and phthirus pubis. B. The causative mite is a blood-sucking, nocturnal parasite of man. C. The condition is characterized by burrows and papules. Correct D. Scabies bite in clusters along extremities and where clothing is tight. E. Treatment includes ivermectin. Correct Scabies are characterized by burrows and papules. Bed bugs are nocturnal, blood-sucking parasites. Pediculus capitis, pediculus corporis, and phthirus pubis are three types of lice. Fleas bite in clusters along extremities and where clothing is tight fitting. Scabies is treated with oral invermectin and scabicides. Awarded 0.0 points out of 1.0 possible points. 13.13. ID: 25066830764 A child is diagnosed with atopic dermatitis (AD). What content would be included in the patient’s education regarding this disorder? (Select all that apply.) A. Identification of triggers that bring about flare-ups Correct B. The importance of keeping the skin well hydrated Correct C. Recognizing the early symptoms of a bacterial infection Correct D. The role of intravenous corticosteroids in managing this disorder E. Interventions to prevent the development of a secondary fungal infection Correct Management of individuals with AD includes accurate diagnosis, comprehensive evaluation of triggers, and response to treatment. Skin hydration is the key to good therapy. Antiinflammatory agents, such as topical, not intravenous, corticosteroids or tar preparations, are necessary during active flares of eczema. Individuals with AD also