Lab Practical A (Interferential Current) Flashcards
What are 2 indications for Interferential current?
Pain reduction - acute and chronic
What are the FIRST 6 of 12 contraindications for Interferential Current?
Anterior cervical area Through the chest Through the head Pacemakers and ICD's Abdominopelvic area of pregnant women Metal implants
What are the SECOND 6 of 12 contraindications for Interferential Current?
Epilepsy Areas of hemorrhage Cancer Confused and unreliable patients Damaged skin Unknown etiology
What are the clinical goals of true Interferential Current treatment?
Decrease pain or strengthen the pelvic floor
Which EPA should be used if the area of treatment is a smaller area?
Premod
Which EPA should be used if the area of treatment is a larger area?
IFC
What is the pad placement and how many pads are used for Premod Interferential Current?
2 pads, 1 on each side of the pain
What is the pad placement and how many pads are used for True Interferential Current?
4 pads in crisscross pattern
What is the temporal presentation for acute?
60-150 Hz
What is the temporal presentation for chronic?
0-15 Hz
What nerve fibers are being targeted for acute pain?
A-beta fibers
What nerve fibers are being targeted for a chronic pain?
A-delta fibers
Which nerve fibers are associated w/ muscle contractions (A-beta or A-delta)?
A-beta fibers = no muscle contraction
A-delta fibers = some muscle twitch
If a patient presents w/ acute pain over a small area what Interferential Current would be used?
Premod; 60-150 Hz
If a patient presents w/ sub-acute pain over a small area what Interferential Current would be used?
Premod; 60-120 Hz
If a patient presents w/ chronic pain over a small area what Interferential Current would be used?
Premod; 1-15 Hz
If a patient presents w/ acute pain over a large area what Interferential Current would be used?
True IF, 60-150 Hz
If a patient presents w/ sub-acute pain over a large area what Interferential Current would be used?
True IF, 60-120 Hz
If a patient presents w/ chronic pain over a large area what Interferential Current would be used?
True IF; 1-15 Hz
What is the intensity level for Interferential Current?
Patient comfort
If a patient presents w/ LBP starting 2 days ago, what Interferential Current would be used and what is the pad placement?
True IF; crisscross 4 pads @ 60-120 Hz
If a patient presents w/ ankle pain starting 8 weeks ago, what Interferential Current would be used and what is the pad placement?
Premod; 2 pads at either side of pain @ 0-15 Hz
Please list 3 primary treatment frequencies and the associated clinical goal for each frequency and the associated clinical goal for each frequency along w/ each frequency along w/ target tissues?
- -High Frequency (60-120 Hz) = Tx for acute pain
- -High/Low Frequency (0-150 Hz) = Tx for acute pain
- -Low Frequency (0-15 Hz) = Tx for chronic pain
How many channels are used during a pre-mod application? How many electrodes? Where are the electrodes placed?
1 channel; 2 electrodes; 1 electrode on each side of pain
How many channels are used during an Interferential application? How many electrodes? How are the electrodes placed on the patient?
2 channels; 4 electrodes; electrodes are placed in a criss-cross pattern
Other than the difference in the number of channels/electrodes, what is the difference between pre-mod and Interferential therapy?
Pre-mod interference and Interferential therapy
Name one reason why pre-mod may be preferable to Interferential in the treatment of your patient?
Pre-mod doesn’t penetrate tissue as deeply and is more accurate
What should be your guideline in determining the intensity setting for pre-mod and Interferential?
Type of pain (acute, subacute, chronic)
