Passive Care - High Volt

Question 1

High Volt: Action

Answer 1

Electrochemical (opiate, pain)

Electrokinetic (contraction)

Question 2

High Volt: Wave Form

Answer 2

Direct Current (DC)
Twin Pulsed

Question 3

High Volt: Indications

Answer 3

Acute and Subacute injuries to reduce edema, analgesia and spasms
Reduce muscle atrophy, cast, disuse, atrophy

Question 4

High Volt: Contraindications

Answer 4

Over the heart, pacemakers, low back, and abdomen during pregnancy
Note: Decreased sensation is not a contraindication

Question 5

High Volt: PPS

Answer 5

LOW FREQUENCY
3-5 edema
15-25 muscle exercise
> 50 fatigue

PAIN RELIEF
1-20 endorphin production - low & slow
80-150 enkephalin production - high & fast

THESE ARE ALL EMS

Question 6

High Volt: Intensity

Answer 6

Decrease patient perception electrochemical (opioids)
Increase patient toleranceelectrokinetic (contraction)
1-500 mA

Question 7

High Volt: Mode

Answer 7

1. Continuous Mode
   beneficial for edema, pain and neuritis
2. Reciprocal Mode
   permits alternating contracture of agonist & antagonist
   limits accommodation
3. Surge on/off
   used when re-education & exercise is desired

Question 8

High Volt: Pad Rule

Answer 8

mA / 1 sq “
3” x 4” = 12 mA
4” long x 3” tall