Ice and Heat

Question 1

What is the difference between convection and conversion?

Answer 1

Convection - heat transfer through direct contact of a circulating agent

Conversion - Transfer of nonthermal energy into heat

Question 2

Why do we use cryotherapy?

Answer 2

Decrease swelling, activate sympathetic neurons, 15-20 mins (after 15-20 mins adverse Hunting reaction with rise and fall of temperature)

• document after 5 mins, greatest effect on A delta fibers
• can decrease spasticity immediately and facilitate muscle contraction
• inspect skin every 10 minutes

Question 3

What are the contraindications of cryotherapy?

Answer 3

• Cold Hypersensitivy (Urtica/ Hives can lead to wheals)
• Cold Intolerance
• Cryoglobulinemia
• Paroxymal Cold Hemoglobulinuria
• Raynaud’s Disease
• Over regenerating PN or area with PVD

Question 4

What are the precautions for cryotherapy?

Answer 4

Dont put over:

• Main branch of Nerve
• Over an open wound
• a pt with hypertension
• a pt with poor mentation
• a very young or very old pt

Question 5

What is the normal sequence for patients who are receiving cryotherapy?

Answer 5

Intense cold
Burning
Aching
Analgesia
Numbness

Question 6

What is the temperature for cold immersion?

Answer 6

50 to 64 degrees

Question 7

What are contraindications for thermotherapy?

Answer 7

• Hemmorhage
• Thrombosis
• Impaired sensation or mentation
• Cancer (malignancy)

Question 8

What are some precautions for thermotherapy?

Answer 8

• Acute injury or inflammation
• Pregnancy
• Impaired Circulation
• Poor Thermal Regulation
• Edema
• Cardiac Insufficiency
• Metal
• Over open wound
• Over reactant application (icy hot)
• Demyelinated nerves

Question 9

Adverse effects of thermotherapy?

Answer 9

• Burns (109*F for 60mins or 115* for 7.5 mins = tissue death)
• Bleeding
• Fainting

Question 10

What temperature are hot packs stored at?

Answer 10

• 158 - 167 degrees; takes 30 minutes to reheat
• Inspect skin every 5 mins
• stays on for 20 mins

Question 11

What temperature is the whirlpool bath?

Answer 11

• UE (98-110)
• LE (98-104)
• Body (98-102)

Treatment time is 20-30 mins depending on body part

Question 12

How long is the treatment for parafin?

How long is the treatment time for infrared lamps?

Answer 12

• 10-15 mins (for wrap)
• dip 10x
• can leave hand in parafin bah for 20 mins (immersion)
• 15-30 mins