Electrodes
Generally, 26-28-gauge Teflon-coated monopolar electrodes, usually 25 mm in length, are utilized. Some laboratories routinely use disposable concentric facial needle electrodes.
These electrodes have smaller calibrated recording areas and hence, provide more stability of MUAP configuration. In addition, concentric needle electrodes are more sensitive to changes in duration and amplitude than monopolar needle electrodes. Use of smaller electrodes (either small monopolar needles or small-diameter concentric needle electrodes originally designed for the examination of adult facial muscles) provides considerable psychological advantages in children of sufficient developmental age to associate needles with pain. The instrumentation utilized for needle EMG of children is essentially the same as that used in adults. In the intensive care unit, electrical interference may necessitate the use of either a facial concentric needle or a needle reference electrode. Long electrodes or long electrode leads can create problems with ambient electrical interference.
More medical literature on Medic.Studio
More on the topic Electrodes:
-
Infectious diseases -
Internal diseases -
Obstetrics and Gynaecology -
Pediatrics -
Veterinary medicine -
-
Conflictology -
Ecology -
Economy -
Finance -
History -
Law -
Medicine -
Philosophy -
Religious studies -