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Comparison of Difference Histamine Concentration (1, 5 and 10 mg/ml) for Skin Prick Test Positive Control

Mahidol University · 2013
ClinicalTrials.gov · Datasets · License: Public Domain · 2013
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Skin prick test (SPT) was used for diagnostic test for type 1 hypersensitivity. The efficacy and safety of SPT were proved. The positive control of SPT is histamine. In Thailand, the most common concentration of histamine for SPT is 10 mg/ml. However, in some practice they use other concentration (1, 2.5 mg/ml). This study will find the proper concentration of histamine for positive control use in SPT.
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