Contemporary Clinical Immunology and Serology 1st Edition by Kate Rittenhouse Olson,Ernesto DeNardin

Exercise 5

A 9-year-old female presents with a vesicular rash on the extensor surfaces of her forearms. Review of her medical record reveals that she has a history of failure to thrive. Which of the following laboratory tests would be useful in diagnosing the cause of her growth failure and persistent rash?
A) serum IgG levels
B) tissue transglutaminase antibodies
C) antibodies against bullous pemphigoid antigen
D) positive immunofluorescent staining of the dermal-epidermal junction