The next step in diagnosis is a 12 lead ECG which can be performed in the doctorsâ office over a short period of time; however this is often non-conclusive in diagnosis because it is not very sensitive and there is only a small chance of a premature ventricular contraction occurring in the short period of time.
Microform is a general term for any material that contains a small image or microreproduction of a document. These document images are usually found on film, however some older formats used cardboard. There are two common film formats: microfilm and microfiche. Microfilm is a roll of film.Microfiche is a flat sheet of film. Since the images are so small, special readers/scanners are used to view the documents.hese document images are usually found on film, however some older formats used cardboard. There are two common film formats: microfilm and microfiche. Microfilm is a roll of film. Microfiche is a flat sheet of film.
From Wikipedia, the free encyclopedia. Microfilm Reader is a device used for reading of documents stored as microform. Microform includes Flat Film, Microfilm, Aperture Cards, Microfiche, and ultra fiche.Using open reels or cassettes, Microfilm is often used as a way to store many documents in a small space. It has become increasingly important in the development of films as well as storage of archived newspapers.rom Wikipedia, the free encyclopedia. Microfilm Reader is a device used for reading of documents stored as microform. Microform includes Flat Film, Microfilm, Aperture Cards, Microfiche, and ultra fiche.