FMCLA Dermatology 3

Question 1

A 55-year-old diabetic presents with warmth, erythema, swelling, and tenderness of the lower leg without crepitus or purulent drainage. The most appropriate antibiotic for non-purulent cellulitis is:

Accepted Answer

Cephalexin 500 mg QID or dicloxacillin

Answer

Non-purulent cellulitis is caused predominantly by beta-hemolytic streptococci; cephalexin or dicloxacillin provides appropriate gram-positive streptococcal coverage.

Question 2

A 5-year-old presents with honey-crusted lesions clustered around the mouth and nose. The most appropriate treatment for localized, non-bullous impetigo is:

Accepted Answer

Topical mupirocin 2% ointment

Answer

Topical mupirocin is first-line for localized non-bullous impetigo because it effectively eradicates Staphylococcus aureus and Group A Streptococcus with minimal systemic side effects.

Question 3

A patient presents with intense nocturnal pruritus and linear burrows between the fingers and wrist folds. The most appropriate first-line treatment is:

Accepted Answer

Permethrin 5% cream applied to the entire body from neck down

Answer

Permethrin 5% cream applied from the neck down and left on for 8–14 hours is first-line treatment for scabies because it is scabicidal against Sarcoptes scabiei mites and eggs.

Question 4

A 4-year-old presents with multiple, umbilicated, flesh-colored pearly papules on the trunk. The most likely diagnosis is:

Accepted Answer

Molluscum contagiosum

Answer

Molluscum contagiosum caused by a poxvirus presents with umbilicated, dome-shaped, pearly papules in children and is spread by skin-to-skin contact.

Question 5

A patient presents with rough, hyperkeratotic papules on the dorsal hands. Close inspection reveals small black dots within the lesion surface. The diagnosis is:

Accepted Answer

Verruca vulgaris (common warts)

Answer

Verruca vulgaris (common warts) caused by HPV presents with rough, hyperkeratotic papules containing thrombosed capillaries that appear as black dots on the surface.

FMCLA - Family Medicine Certification Longitudinal Assessment Practice Test

FMCLA - Family Medicine Certification Longitudinal Assessment Practice Test

FMCLA Dermatology 3