Cryotherapy

Question 1

definition: the transfer of heat by direct interaction of molecules

Answer 1

conduction

Question 2

What are the local effects of conduction and convection?

Answer 2

• decreased blood flow
• decreased NCV
• decreased tissue temperature
• vasoconstriction

Question 3

definition: heat abstraction by direct contact of skin moving fluid particles

Answer 3

convection

Question 4

Is convection or conduction faster?

Answer 4

convection

Question 5

Convection is practical only for (proximal/distal) extremities

Answer 5

distal

Question 6

definition: occurs on the surface of a liquid as it changes into gas

Ex: vapocoolant sprays

Answer 6

evaporation

Question 7

What are the local effects of evaporation?

Answer 7

• decreased skin temperature
• decreased motor neuron activity

Question 8

What are the hemodynamic effects of cryotherapy?

Answer 8

• vascoconstriction
• decreased blood flow
• increased viscosity

Question 9

What is the most common ankle ligament injured?

Answer 9

Anterior Talofibular Ligament (ATL)

Question 10

Cryotherapy (increases/decreases) intramuscular pressure.

Answer 10

decreases

Question 11

You should combine cryotherapy with ___ and ___.

Answer 11

compression and elevation

Question 12

Cryotherapy (increases/decreases) Nerve conduction velocity (NCV)

Answer 12

decreases (helps improve pain threshold)

Question 13

(true/false) extreme cold can block nerve conduction

Answer 13

true

Question 14

What are clinical indications for cryotherapy?

Answer 14

• acute MS trauma
• pain and muscle spasms
• myofascial pain syndrome

Question 15

Only use ice for (acute/chronic) conditions

Answer 15

acute

Question 16

Cryotherapy should only be done for __-__ minutes intermittently

Answer 16

20-30

Question 17

What are contraindications for cryotherapy?

Answer 17

• raynaud’s phenomenon
• cold urticaria
• cryoglobulinemia (when the blood contains large amounts of cryoglobulins)
• compromised circulation
• over areas of nerve degeneration

Question 18

What are precautions for cryotherapy?

Answer 18

• HTN
• cold hypersensitivity
• impaired circulation
• thermoregulatory disorders
• over superficial nerves
• open wounds

Question 19

Cold packs should be stored at ___ degrees for at LEAST 2 hours before use. They last about 15-20 minutes.

Answer 19

-5

Question 20

definition: cold therapy used for trigger points and bursae
- may enhance collagen repair

Answer 20

ice massage

Question 21

Ice massages should be performed CONTINUOUSLY for ___ minutes

Answer 21

5

Question 22

commonly used for myofascial trigger points
Mechanism: broken pain spasm cycle

Answer 22

vapocoolant sprays

Question 23

Vapocoolant should be sprayed (perpendicular/parallel) to muscle fibers followed by stretching

Answer 23

parallel

Question 24

Cold whirlpools should be ___-___ degrees

Answer 24

67-80

Question 25

Duration of cold whirlpool treatment should be ___-___ minutes

Answer 25

10-20

Question 26

When using cold compression units (Game Ready), the limb should be placed at approx. ___ degrees of elevation

Answer 26

30

Question 27

Cold compression units should have the parameters of ___ seconds on and __ seconds off for __-__ minutes (depending on pathology)

Answer 27

45, 15, 15-25

Question 28

Do not increase cold compression unit pressure above ____ BP

Answer 28

diastolic