Modalities Flashcards
How deep does 1 MGz ultrasound Penetrate
3-5 cm
How deep does 3MGz ultrasound Penetrate
1-2 cm
Temperature or Paraffin Wax
126-130 F
Temp of hot whirlpool
100-110 F
Temp of heat packs
160-170 F
How deep does cold penetrate
4cm
Hunting response
slight increase in temperature during cooling (not vasodilation)
At what temperature does frostbite occur
26.6 - 24.8 F
Cold Whirlpool temps
50-60 F
How many volts is low voltage electrotherapy
0-150 volts
How many volts is high voltage electrotherapy
> 150 volts
Contrast bath ratio
3:1 or 4:1
What current type is Monophasic
DC
What current type is Biphasic
AC
What is Monophasic used for
- Pain modulation
- Muscle contractions
- Produce ion movement
What is biphasic used for
- Pain modulation
- Muscle contractions
What is polyphasic current
Usually contains three or more pulses grouped together.
They are interrupted for short periods of time and repeat themselves at regular intervals.
What is polyphasic used for.
Interferential current and Russian Stimulation.
Types of Waveforms
Sine
Square
Triangular
What is modulation
Ability of the electrical stimulating unit to change to magnitude or duration of a waveform.
Intensity
Voltage output of stimulating unit
Pulse duration
Length of time that a current is flowing.
Frequency
Number of waveforms being emitted by the unit in one second.
High Frequency?
60-120 pps
