Estim - Iontophoresis Flashcards
What do we use iontophoresis for
Low amplitude DC to facilitate transdermal drug delivery
What is the most common iontophoresis medication
Dexamethasone
What is the depth of the drug being delivered by iontophoresis
3-20mm
What is the unit of amount of electric used for performing iontophoresis
Milliamp minutes (mA-min)
Most manufacturers recommend using 40mA-min or 80 mA-min for each treatment
What is the polarity, indication and concentration for acetate
Polarity - negative
Indication - calcium deposits
Concentration - 2.5-5%
What is the polarity, indication and concentration for dexamethasonephosphate
Polarity - negative
Indication - inflammation
Concentration - 0.4 %
What is the polarity, indication and concentration for lidocaine
Polarity - positive
Indication - local anesthetic
Concentration - 5%
What is the electrode placement for ionto
Active pad on the site being delivered
Dispersive pad placed a few inches away over a large muscle belly
Both positive and negative polarity electrodes are within the same patch
What’s the current amplitude for ionto
No greater than 4 mA
What’s the treatment time for ionto
Produce a total treatment dose of 40-80 mA-min
Setting the amplitude to patient comfort
Check the patient’s skin
Use small electrodes to produce high current density
What are the contraindications for ionto
Pacemaker
Carotid sinus
DVT
Pregnant
What are the precautions for ionto
Cardiac disease
Impaired mentation/sensation
Cancer
Skin irritation/open wounds
Wound healing
