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The rarest of the following conditions is:

A. Pemphigoid gestationis

B. Impetigo herpetiformis

C. PUPPP

D. Prurigo gestationis

E. Atopic eruption of pregnancy

B. Impetigo herpetiformis is the rarest of the pregnancy rashes. PUPPP is the most common pregnancy rash, which is fortunate since it has no known fetal complications.

Tetany is most likely to be a feature of:

A. Pemphigoid gestationis

B. Impetigo herpetiformis

C. Papular dermatitis of pregnancy

D. Pruritus gravidarum

E. Pruritic urticarial papules and plaques of pregnancy

B. Patients with impetigo herpetiformis may develop secondary hypoalbuminemia and hypocalcemia which can result in tetany.

Which of the following most characteristically develops around the umbilicus?

A. Pemphigoid gestationis

B. Impetigo herpetiformis

C. Papular dermatitis of pregnancy

D. Pruritus gravidarum

E. Pruritic urticarial papules and plaques of pregnancy

A. Pemphigoid gestationis often develops around the umbilicus.

Phenobarbital and cholestyramine are most commonly used to treat which condition?

A. Pemphigoid gestationis

B. Impetigo herpetiformis

C. Atopic eruption of pregnancy

D. Pruritus gravidarum

E. Pruritic urticarial papules and plaques of pregnancy

D. Pruritus gravidarum is often treated with phenobarbital and cholestyramine.

Direct immunofluorescence is most likely to demonstrate which protein in a linear band at the dermal-epidermal junction zone in pemphigoid gestationis?

A. IgG

B. IgM

C. IgA

D. IgE

E. C3

E. Linear C3 is found more often at dermal-epidermal junction zone in pemphigoid gestationis compared with the immunoglobulins.

Regarding pregnancy skin findings, which problem typically starts about 3 months after delivery?

A. Melasma

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