Repeated USMLE Questions Step 1 (86)




A 12-year old student develops allergic reaction on her ears after wearing new earrings. Her mother is concerned because she always have the same reaction when she wears any jewelry.

This allergic reaction is considered which type of hypersensitivity?

A- Type 1

B- Type ll

C- Type lll

D- Type lV




Answer:

This is most likely a case of contact dermatitis which is considered Type Vl hypersensitivity. It is delayed allergic reaction that is mediated by  T cell response.

The correct answer is D




By | 2017-01-28T05:21:14+00:00 January 3rd, 2017|USMLE Step 1|2 Comments

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2 Comments

  1. PatelMD January 14, 2017 at 6:38 am - Reply

    You have the correct answer. Just one thing, its not VI. Its actually IV = 4

    • Dr. Ray Makar January 28, 2017 at 5:21 am - Reply

      I fixed it..Thank you PatelMD

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