A method for producing prick test single use sterile vials for use in a prick test is provided. The method comprises providing at least one allergen source including therewithin allergen extract, providing a plurality of single dose vials, connecting a tube to the at least one allergen source, connecting a metering device to the tube, drawing by the tube an amount of the allergen extract from one of the at least one allergen source, receiving the amount of allergen extract at the metering device, and dispensing by the metering device a volume of allergen extract into one of the plurality of single dose vials.