I-transducer yomfutho wegaziiyithuluzi lezokwelapha elisetshenziselwa ukukala umfutho wegazi ngokuguqula amandla asetshenziswa ukugeleza kwegazi abe isignali kagesi. Kuyingxenye eyinhloko ezinhlelweni zokuqapha umfutho wegazi ohlaselayo, ovame ukusetshenziswa ezindaweni zokunakekelwa okubucayi njengamagumbi okuhlinza, amayunithi okunakekela kakhulu (ICUs), kanye neminyango yezimo eziphuthumayo.