Q:

A lady who works at a nursing home presents with itching. Exam: linear tracks on the wrist. She says that 2d ago she had come in contact with a nursing home inmate with similar symptoms. What is the mechanism of itching?

waelhammad
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2022-11-03
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A lady who works at a nursing home presents with itching. Exam: linear tracks on the wrist. She says that 2d ago she had come in contact with a nursing home inmate with similar symptoms. What is the mechanism of itching?

  1. Infection
  2. Destruction of keratinocytes
  3. Allergic reaction
  4. Immunosuppression
  5. None
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waelhammad
2022-11-03
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The key is C. Allergic reaction. [The probable diagnosis is scabies in which there is itching due to allergic reaction to mites (Sarcoptes scabii) waste products].

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