(G-tubes, G-buttons, Bard, Nutriport, Mickey)
Gastrostomy tube size consists of 2 numbers: the tube diameter, and the length of the tube within the tract. Tract length is measured in centimeters (cm) and generally ranges from 1.2cm to 4.0cm for button type gastrostomy tubes. The diameter is measured in ‘”french,” which is abbreviated with the letter ‘f.” Typical diameters include 14f, 18f, 24f. Generally, the smallest diameter tube that can handle the formula or medications given should be used. Thinner tubes generally have less leakage than large diameter tubes.