application of heat

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Application of Heat : 

PTA 200 Modalities and procedures in physical therapy Application of Heat

Hot Packs : 

Hot Packs

Application of Hot Packs : 

Application of Hot Packs Remove clothing, jewelry 6-8 layers of dry towels, or HP covers with 4-6 layers of towels If patient lying on HP, will require more towels. Apply HP and secure well Maintain uniform application Give patient call light or bell and instruct to call if experiencing any discomfort

Application of Hot Packs : 

Application of Hot Packs Add towels if needed Do not remove towels Use fewer next treatment if not hot enough Recheck patient after 5 minutes and periodically throughout treatment Check skin

Advantages of Hot Packs : 

Advantages of Hot Packs Easy to use Inexpensive Decreased use of time of clinician Low skill level Can use on moderate-large areas Safe; HP cools with time Easily purchased for home use

Disadvantages of Hot Packs : 

Disadvantages of Hot Packs Must move to inspect skin May not tolerate weight of HP Sometimes difficult to contour to body No movement possible during treatment Hydrocollator expensive

Paraffin : 

Paraffin

Paraffin : 

Paraffin 6:1 or 7:1 ratio paraffin to oil 113-1300 F Low Specific Heat, Thermal Conductivity Other sources 118-1300 F 1260 F most common

Paraffin, Dip-Wrap Method : 

Paraffin, Dip-Wrap Method Remove jewelry, wash hands Fingers apart, dip hand into paraffin up to, including wrist Remove Wait for a layer to harden and become opaque Do NOT move fingers

Paraffin : 

Paraffin

Paraffin, Dip-Wrap Method : 

Paraffin, Dip-Wrap Method Do NOT touch sides of unit Re-dip 6-10 times Place hand in plastic bag, wrap with towel, secure closed with strap Elevate extremity and leave on 15-20 mins. or until cool Peel off and discard (trash)

Paraffin, Dip- Immersion Method : 

Paraffin, Dip- Immersion Method Requires lower temperature Dip once, opaque layer, submerge and hold up to 20 minutes

Paraffin, Paint Method : 

Paraffin, Paint Method Paint on with brush and wait for opaque layer Re-brush 6-10 times Cover with plastic, then towels Leave on 20 minutes Peel off and discard Paraffin can be sterilized by heating to 1760 F, then allowing to cool

Home Paraffin Treatment : 

Home Paraffin Treatment 5 lbs. Sealing paraffin wax 1 pint mineral oil Melt to 125-1300 F in “Crock Pot” or 1.6 quart double boiler Check temperature with candy thermometer Apply as previous

Fluidotherapy : 

Fluidotherapy

Fluidotherapy : 

Fluidotherapy Dry heating agent Transfers heat by convection Composed of finely ground cellulose particles (Corn Cobs) Heated air moves particles Acts like a liquid

Fluidotherapy : 

Fluidotherapy

Fluidotherapy : 

Fluidotherapy Patient places body part in cabinet via portal Any open wounds covered Secure sleeve to prevent particles from escaping Set temperature at 100-1180 F Adjust agitation for comfort Treat for 20 minutes

Fluidotherapy, Advantages : 

Fluidotherapy, Advantages Patient can move during treatment Minimal pressure applied Temperature well controlled Easy to administer

Fluidotherapy, Disadvantages : 

Fluidotherapy, Disadvantages Expensive Limb sometimes in dependent position Can overheat Corn cob particles slick on floor

Infrared : 

Infrared

Infrared : 

Infrared Electromagnetic radiation, gives rise to heat when absorbed by matter Wavelength = 780-1500 nm Examples: IR lamps, sunlight, low-intensity lasers. Peak intensity, 1000 nm Tissue temperature increase directly proportional to amount of radiation that penetrates

Infrared : 

Infrared Penetration determined by… Intensity and wavelength Distance of source from tissue Angle of incidence of radiation to tissue Absorption coefficient of tissue Increased intensity and increased wavelength produces increase in penetration At 1200 nm, 50% Infrared penetrates beyond 0.8 mm, through skin, into subcutaneous tissues

Inverse Square Law : 

Inverse Square Law With increased distance, the decrease in intensity is proportional to the inverse square of the distance If source is moved from 5cm to 10cm, Intensity decreases to 1/4 original strength.

Cosine Law : 

Cosine Law The angle of radiation changes the intensity in proportion to the cosine of the angle of incidence of radiation Intensity reaching skin greatest when close to skin, perpendicular to surface

Cosine Law : 

Cosine Law As the distance or angle of inclination increases, the intensity will decrease IR IR 900

Infrared : 

Infrared Not used much today….changing You and patient must wear goggles during treatment Patient should feel comfortable warmth Distance should be 45-60cm from skin and perpendicular Record

Advantages of Infrared : 

Advantages of Infrared No contact with the patient Decrease risk of cross contamination No contouring problems Can observe area during treatment

Disadvantages of Infrared : 

Disadvantages of Infrared Not easily localized Difficult to ensure consistent heating

Documentation of Infrared : 

Documentation of Infrared Area of the body Type of heat applied Treatment duration Response to treatment Temperature or power (as appropriate) Number and type of insulation Distance (if appropriate) Patient’s position

The End : 

The End

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