[Solved] Direct immunofluorescence is a laboratory test that is effective in confirming which of the following? A) Major aphthae B) Primary herpes simplex C) Zoster D) Drug allergy E) None of the above Microscope: A device used to view objects that are too small to be seen by the naked eye, by magnifying them. Specimen: A sample taken from a body, such as tissue, blood, or urine, used for analysis or diagnosis. Milligram: null Abbreviation: A shortened form of a word or phrase used to represent the full term.