S1_L2: Superficial Cold and Heat Flashcards
TRUE OR FALSE: Cryotherapy is used as a first-aid measure after trauma. Cooling is accomplished by removing or abstracting heat from an object, rather than by adding cold.
A. Both statements are true
B. Both statements are false
C. Only the 1st statement is true
D. Only the 2nd statement is true
A. Both statements are true
Source: Michlovitz
The following statements are true about cryotherapy, EXCEPT:
A. Used to decrease the temperature of soft tissues
B. Used to increase the temperature of soft tissues
C. Used only as an adjunctive tool in the rehabilitation of musculoskeletal dysfunctions
D. Used in the rehabilitation of neuromuscular dysfunctions
E. None of the above
B. Used to increase the temperature of soft tissues
Match the following effects of cold.
- ↓ Spasticity
- ↓ Histamine level
- ↑ Pain threshold
- ↓ Nerve Conduction Velocity
- Hunting Response
A. Hemodynamic
B. Neuromuscular
C. Metabolic
- B
- C
- B
- B
- A
TRUE OR FALSE: Upon application of cryotherapy, there is an initial decrease in blood flow, followed by an increase in blood flow.
True
↓ blood flow and tissue metabolism results in (1)_____ in bleeding and (2)____ in inflammation.
A. increase; decrease
B. increase; increase
C. decrease; increase
D. decrease; decrease
D. decrease; decrease
Cold makes blood is more viscous. A decrease in blood flow decreases production and release of vasodilators.
A. Both statements are true
B. Both statements are false
C. Only the 1st statement is true
D. Only the 2nd statement is true
A. Both statements are true
This is the alternating vasoconstriction and vasodilation happening during a long application of cold to the body. It is thought off as a safety feature of the body that happens to protect tissue from damage
Hunting Response
Cold has the greatest effect on conduction by (1)____ fibers and the least effect on conduction by (2)_____ fibers.
A. myelinated and large ; unmyelinated and small
B. myelinated and small ; unmyelinated and large
C. unmyelinated and small ; unmyelinated and large
D. unmyelinated and small ; myelinated and large
B. myelinated and small ; unmyelinated and large
Source: Cameron
Cryotherapy can (1)____ the pain threshold and (2)____ the sensation of pain
A. increase; decrease
B. increase; increase
C. decrease; increase
D. decrease; decrease
A. increase; decrease
TRUE OR FALSE: strength testing should be performed before cryotherapy application.
True
This is because muscle strength can be temporarily influenced by cryotherapy.
Prolonged cooling for ___ to ___ minutes can reduce spasticity for the following 60 to 90 minutes
10 to 30
Source: Cameron
Application of cryotherapy by 5 minutes or more may (1)____ tone. Application of cryotherapy using quick icing or brief cooling may (2)____ tone.
A. increase; decrease
B. increase; increase
C. decrease; increase
D. decrease; decrease
C. decrease; increase
What motor neuron is facilitated in brief application of cryotherapy?
alpha motor neuron
Source: Cameron
What motor neuron is facilitated in long cooling application of cryotherapy?
gamma motor neuron
Source: Cameron
Cold decreases local metabolic rate and therefore can slow inflammatory activity. Cold is not recommended when healing is delayed as it will prolong the healing process
A. Both statements are true
B. Both statements are false
C. Only the 1st statement is true
D. Only the 2nd statement is true
A. Both statements are true
Enumerate the methods of heat LOSS.
Respiration, Radiation, Evaporation, Convection, Conduction
Match the examples of the following methods of heat loss
- Sweating
- Exhalation
- Placing an ice pack
- Immersing foot in water
- Through air
A. Respiration
B. Radiation
C. Evaporation
D. Convection
E. Conduction
- C
- A
- E
- E
- D
Cryotherapy may reduce the severity of delayed-onset muscle soreness (DOMS). It is used as a symptom management for multiple sclerosis
A. Both statements are true
B. Both statements are false
C. Only the 1st statement is true
D. Only the 2nd statement is true
A. Both statements are true
Cryotherapy is not used when burns are in the acute stage. It is also contraindicated in pts c Raynaud’s disease
A. Both statements are true
B. Both statements are false
C. Only the 1st statement is true
D. Only the 2nd statement is true
D. Only the 2nd statement is true
_______ is the application of a cooling agent before stretching.
Cryostretch
_______ is a technique that combines the use of cold and exercise to treat pathology or disease.
Cryokinetics
TRUE OR FALSE: When a pt has a history of being hypertensive, a PT must take precaution in applying cryotherapy.
True
Enumerate the 4 stages of sensation upon application of cryotherapy
- Cold
- Burning
- Aching
- Numbness/Analgesia
When using cryotherapy to control inflammation on the extremities, apply for no longer than ____ minutes at least ____ hour/s apart
- 15
- 1
Source: Cameron
TRUE OR FALSE: Superficial heating agents do not heat to the depth of most muscles. To heat deep muscles, use exercise or deep-heating modalities such as ultrasound or diathermy.
A. Both statements are true
B. Both statements are false
C. Only the 1st statement is true
D. Only the 2nd statement is true
A. Both statements are true
Source: Cameron
Nerve conduction velocity increase by (1)___ m/s for every (2)____ºC rise
- 2
- 1
Determine the LAW being described when applying radiation.
Intensity of radiation is inversely proportional to the distance squared
Inverse Square Law
Determine the LAW being described when applying radiation.
Intensity and duration of the dose of radiant energy is inversely proportional
Bunsen Roscoe Law of Reciprocity
Determine the LAW being described when applying radiation.
There is an optimal amount of energy absorption per unit time for beneficial results to be expected
Arndt-Schultz Principles
Determine the LAW being described when applying radiation.
Waves must be absorbed to be induce chemical processes/changes
Law of Grothus Draper
NOTE: This is also known as the Principle of Chemical Activation
Determine the LAW being described when applying radiation.
Optimum radiation occurs when the source is perpendicular (right angle) to the center of the surface to be radiated
Lambert’s Cosine Law
NOTE: This is also known as the Right Angle Law
_____ is the use of electrical current to facilitate the delivery of specific drugs and ions to reduce tissue inflammation, decrease local pain, reduce calcium deposits, and reduce scar restrictions
Iontophoresis
Categorize the following findings in the application of cold.
- Open wound
- Inflammation
- Edema
- Over a regenerating peripheral nerve
- Over the superficial main branch of a nerve
A. Indication
B. Precaution
C. Contraindication
- B
- A
- A
- C
- B
TRUE OR FALSE: Applying a cold pack after a hot pack improves passive ROM (PROM) in patients with restricted knee ROM more effectively, rather than applying a hot pack alone.
True
Source: Cameron
This technique involves applying a cooling agent to the point of numbness shortly after an injury to reduce the sensation of pain, enabling the patient to exercise and work toward regaining range of motion (ROM) as early as possible
A. Cryokinetics
B. Cryostretch
A. Cryokinetics
The purpose of this sequence of treatments is to reduce muscle spasm
A. Cryokinetics
B. Cryostretch
B. Cryostretch
This approach is most commonly used to rehabilitate athletes.
A. Cryokinetics
B. Cryostretch
A. Cryokinetics
Explain how cryokinetics is performed.
- cold is applied for up to 20 minutes or until the patient reports numbing
- patient performs strengthening and stretching exercises for 3 to 5 minutes until sensation returns
- sequence is repeated for five times
______ is an uncommon disorder characterized by the aggregation of serum proteins in the distal circulation when the distal extremities are cooled.
Cryoglobulinemia
This reaction is marked by the transient appearance of smooth, slightly elevated patches, which are redder or more pale than the surrounding skin and are often attended by severe itching.
Cold Hypersensitivity/ Cold-induced Urticaria
_____ is a condition in which hemoglobin from lysed red blood cells is released into the urine in response to local or general exposure to cold.
Paroxysmal cold hemoglobinuria
_____ is a paroxysmal digital cyanosis resulting from some regional or systemic disorder.
Raynaud disease
TRUE OR FALSE: Too much exposure to radiation causes heat. Less exposure to radiation promote heat loss.
A. Both statements are true
B. Both statements are false
C. Only the 1st statement is true
D. Only the 2nd statement is true
A. Both statements are true
The following are indications for cryotherapy, EXCEPT:
A. Inflammation Control
B. Edema Control
C. Pain Control
D. Modification of Spasticity
E. None of the above
E. None of the above
The following are indications for cryotherapy, EXCEPT:
A. Facilitation of Tone
B. Inhibition of Tone
C.
D.
E. None of the above
The following are indications for cryotherapy, EXCEPT:
A. Desensitization
B. Conjunction with deep friction massage
C. Conjunction with joint mobilization
D. Conjunction with strenuous workouts
E. None of the above
E. None of the above
Why is cryotherapy contraindicated to be applied directly over a regenerating peripheral nerve?
results to local vasoconstriction or altered nerve conduction that results to a delay in nerve regeneration
TRUE OR FALSE: Poor sensation or mentation becomes a contraindication in applying cryotherapy.
False
a PT must only take precautionary measures
TRUE OR FALSE: Extreme ages of patients is a precaution in applying cryotherapy.
True
Determine the time of application for the following cryotherapy modalities.
- whirlpool
- iced towel
- quick icing
A. 3 times
B. 3-5 mins
C. 10-15 mins
D. 10-20 mins
E. 5-15 mins
- E
- C
- A
Determine the time of application for the following cryotherapy modalities.
- chemical cold packs
- ice massage
- ice packs
A. 3-5 seconds, 3x
B. 3-5 mins
C. 10-15 mins
D. 10-20 mins
E. 5-15 mins
- C
- B
- D
- Convenient for emergency use
- Used primarily in patients with CNS disorder
A. cold packs
B. ice packs
C. ice massage
D. quick icing
E. chemical cold packs
- E
- D
- Usually done over a small area before deep pressure massage
- Technique developed by Rood
A. cold packs
B. ice packs
C. ice massage
D. quick icing
E. chemical cold packs
- C
- D
- Usually effective on flaccid/hypotonic muscles only
- Rapid application of ice as a stimulus to elicit desired motor patterns
A. cold packs
B. ice packs
C. ice massage
D. quick icing
E. chemical cold packs
- D
- D
- Indicated for conditions in which exercise of the injured part during cold treatment is desired
- Most practical if cooling of the distal extremities is desired
A. cold baths
B. cold whirlpool
C. vapocoolant spray
- B
- A