Generic name: Trichophyton mentagrophytes 1g in 1000mL, Trichophyton rubrum 1g in 1000mL
Dosage form: injection for intradermal skin testing
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Prior to administering skin tests, the skin should be cleaned with alcohol and allowed to dry completely. The tests should be placed on the volar surface of the forearm and four rows may be placed on the back.
INTRADERMAL TEST The intradermal test is performed by administering 0.1 mL of extract into the skin. The injection should be given as superficially as possible creating a distinct bleb approximately 5 mm in diameter. The tests should be examined after 15 - 20 minutes and read as negative or positive. Test sites that show a wheal and flare response should be measured and reported in mm of edema and erythema or scored as 1+ to 4+ based on a mm reference scale. Induration after 24 - 48 hours can occur in some individuals and also may be recorded in mm.