Application of Heat

Question 1

Hot packs

Answer 1

superficial, moist heat

Commercial bags are canvas/nylon bags with hydrophililc material

Question 2

Hot packs are stored in

Answer 2

70-75C (158-167F)

Question 3

Hot packs retain temp for

Answer 3

about 20 min

a higher than body temp - NOT steady state

Question 4

Hot packs need to be covered with

Answer 4

6-8 layers of toweling

Heat should feel mild to mod

Question 5

Lying on hot pack

Answer 5

NO
Inc rate of heat transfer
Inc intensity
Dec local circulation

Question 6

Need to check skin with hot pack after

Answer 6

5 minutes!

Question 7

Paraffin - melting point

Answer 7

Wax with a melting point of 54.5 C (130 F)

Question 8

Paraffin with addition of mineral oil - lowers melting temp

Answer 8

to as low as 45 C (113 F)

Question 9

Paraffin vs water Specific heat

Answer 9

Paraffin has a lower S so it doesnt feel as hot

Slower thermal conduction than water too

Question 10

Paraffin is used for

Answer 10

distal parts of extremities
Sensory testing
Extremity should be clean and dry
No jewelr

Question 11

Paraffin can be used over..

Answer 11

healed burned areas to inc skin pliability but lower temp

Question 12

Do NOT use paraffin over

Answer 12

open wounds

Question 13

Paraffin tx for how long?

Answer 13

10-20 minutes

Question 14

Techniques for paraffin

Answer 14

dip and wrap
Dip and re-immerse
Paint

Question 15

Dip and Wrap

Answer 15

8-10 dips
Place body in plastic bag
wrap paper towels first for additional insulation 
Cover plastic bag with towels
Body part should be elevated

Question 16

Dip and re-immerse

Answer 16

One dip to form glove
Once formed, re-immerse and maintain position in parffin for duration of tx
Caution patient not to move or will break seal and burn

Question 17

Pain

Answer 17

Use a brush to apply paraffin to selected areas

Question 18

Fluidotherapy

Answer 18

Dry heat, massaging, sensory stimulation

Warm air is forced through a bed of cellulose material

Question 19

Temp and time for fluidotherapy

Answer 19

102-118 F
20 minutes
Allows for exercise inside

Question 20

Infrared lamps

Answer 20

Superfiical, dry heat
Two types of lamps
1. Near infrared
2 Far infrared

Question 21

Near Infrared lamp

Answer 21

Luminous
Wavelength 770-1500 nm
Visible light
Greater reflection
Depth of penetration 5-10 mm

Question 22

Far Infrared lamp

Answer 22

Non-luminous
Wavelength 1500-12500 nm
Less penetration (2mm) but will feel warmer

Question 23

Infrared lamps tissue temp is

Answer 23

directly proportional to amount of radiation penetrating the skin
Beam goes perp to skin
45-60 cm away from skin
15-30 min tx

Question 24

Application of heat should be

Answer 24

combined with therapeutic exercise/mobility