Electrophysical Agents - Cryotherapy

23 Questions | Total Attempts: 514

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Electrophysical Agents - Cryotherapy

Physiological effects of cryotherapyindications of cryotherapysafety aspects & contraindicationsdifferent applications


Questions and Answers
  • 1. 
    Cryotherapy is the use of c__ agents as a first aid measure after trauma and as an a__ in rehab of musculoskeletal & neuromuscular dysfunction
  • 2. 
    Cryotherapy can help to prevent/reduce e__ of traumatic origin & inflammation
  • 3. 
    Cryotherapy works by 2 modes. They are:
  • 4. 
    In conduction the internal energy is r___ by the ___ moving cooler particles from the more ___ moving hotter particles
  • 5. 
    Conduction has the following features:
    • A. 

      The greater the temp gradient btw the skin & cooling source the greater will be the resulting tissue temp change

    • B. 

      Tissues with higher content have better thermal conductivity

    • C. 

      Time of exposure is impt when considering the ability of cold to lower the temp of subcutaneous tissues, muscle & joints

    • D. 

      Extraction of heat upon contact with the skin

  • 6. 
    Evaporation reduces temp by means of 
    • A. 

      Convection

    • B. 

      Evaporation

  • 7. 
    In biophysical effect, when cold is applied the immediate response is v__ of bld vessel and increase or decrease of bld flow.
  • 8. 
    When expose to cold for a short time the arterioles and venules will c___ due to an interplay of factors
  • 9. 
    As cooled bld returns to general circulation, it will stimulate h__ conservation area  and this will result in further reflex c__ v__
  • 10. 
    Hemodynamic effects can be seen in the following
    • A. 

      Decrease joint bld flow

    • B. 

      Increase in bld viscosity

    • C. 

      Cold induced vasodilation after a long time of temp reduction

    • D. 

      None of the above

  • 11. 
    The effects of cold stimulus on local bld flow will result in
    • A. 

      Increase smooth muscle tone, decrease vasodilator modalities

    • B. 

      Reflex, increase bld viscosity

    • C. 

      Increase bld flow

    • D. 

      Decrease bld flow

  • 12. 
    The rationale for using cold in the first 24-48 hrs following injury is due to
    • A. 

      Less fluid filtration into interstitial due to vasoconstriction

    • B. 

      Less inflammation & pain

    • C. 

      Decrease metabolic rate and sec. hypoxic injury

    • D. 

      Increase blood flow to affected areas

  • 13. 
    The effect on peripheral nerves are
    • A. 

      Alteration of nerve conduction velocity and synaptic activity

    • B. 

      Blockage of synaptic transmission

    • C. 

      Chg depends on duration and temp

    • D. 

      Increase in neural activity to compensate for loss of temp

  • 14. 
    Short duration cold has an effect on muscle performance by increasing or decreasing it?
  • 15. 
    The neuromuscular effect will lead to reduce s___ which will decrease resistance to p__ stretch, decrease amplitude deep t__ reflex and frequency of c__
  • 16. 
    In order for spasticity to be reduced the reduction in g__ activity should be greater than the increase in a__ activity.a corresponding d__ in afferent spindle discharge
  • 17. 
    To reduce spasticity the cold is applied by
    • A. 

      Over hypertonic muscle for 10-30 mins

    • B. 

      Method of app depends on accessibility, size & contour of body area

    • C. 

      Exercise programme is carried out once spasticity is reduced. Cold can last for 1-1.5 hrs

    • D. 

      None of the above

  • 18. 
    . For musculoskeletal trauma, cold treatment can ___ pain threshold and ___ pain by acting as a counter-irritant.. __ is a technique that uses ice massage/ice water immersion to provide analgesia before ROM exercises
    • A. 

      Increase decrease cryokinetics

    • B. 

      Decrease increase ice bath

  • 19. 
    The therapeutic indicators for using cold treatment are:
    • A. 

      Reduce pain, spasticity, inflammation, spasm

    • B. 

      Minimize/reduce oedema, synovial effusion, haemorrhage when combined with compression

    • C. 

      Increase blood flow to aid in quick recovery

    • D. 

      Facilitate muscle action

  • 20. 
    Contraindications & Precautions to note are:
    • A. 

      Cryoglobinaemia - bld protein forms a gel at low temp

    • B. 

      Cold urticaria or hypersensitivity

    • C. 

      Intolerance - severe pain, numbness, colour changes, cyanosis & mottling

    • D. 

      Raynaud's phenomenon - associate with rheumatic disease

    • E. 

      Paroxysmal cold haemoglobinuria

    • F. 

      Peripheral vascular diesease

    • G. 

      Hypertensive patients, superficial nerves, cold aversion

    • H. 

      Pregnant patient, Patients with thrombophlebitis or other potentially thromboembolic diseases

  • 21. 
    The methods of application are:. CP. IM. IT. CB. VS
  • 22. 
    For cold baths the water temp varies btw __-__ deg C
  • 23. 
    For spray the skin should be covered __-__ times at at rate of __ cm per sec. It should not exceed __ secs or else F__ may occur.
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