EMDA or Iontophoresis is a method of sending antibiotics straight to an infected area. The antibiotics used are of a much higher concentration than would be possible to take either orally or intravenously.
EMDA uses an electrical current to send the concentrated antibiotic solution to the infected tissues.
A urethral catheter, containing an electrode, is inserted into the bladder. Patches (containing electrodes) are placed on the patient’s skin and a small electric current is set up from the catheter to the skin patches. It is this current that enables the medication to bypass the bladder’s protective lining and penetrate the deeper layers of the bladder lining. The rate of the medication is controllable by altering the strength of the electric current.
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