a. Contraindication - Dermatographism (heightened skin reaction):

b. Technique problem - trauma of test on sensitive skin:

c. True positive reaction - Wheal and flare response:

d. Unusual response - Pseudopodia:

e. Positive skin prick tests in an atopic worker :

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Postgraduate Diploma in Occupational Health (DOH) - Modules 3 – 5: Occupational Medicine & Toxicology by Prof Rodney Ehrlich & Prof Mohamed Jeebhay is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License.
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