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Cards In This Set
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Identify
the three broad effects of using external compression modalities
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improves venous and lymphatic circulation, limits
the shape and size of tissue, and increases tissue temperature.
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Explain
the effects of static or intermittent compression on hydrostatic pressure,
circulation (venous and lymphatic) and interstitial fluid
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milks fluids from the distal to the proximal vessels;
when the vessels are compressed, the fluid i them is pushed proximally; when
compression is reduced the vessels open and refill with fluid from the
interstitial space, ready to be pushed proximally.
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Compare
the use of static and intermittent for improving circulation
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they both increase circulation by increasing the
hydrostatic pressure in the interstitial space outside the blood and lymphatic
vessels.
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Compare
the use of single-chamber intermittent compression and sequential multi-chamber
compression for improving circulation
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single chamber fills up all at once and
sequential chambers fill up distally to proximally.
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Describe
the patient benefits of improving venous and lymphatic edema
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prevent the formation of DVT and facilitate the
healing of ulcers caused by venous stasis.
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Give
instances where compression garments or bandages (such as ACE wrap) are used to
change or limit the shape of tissue
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residual limbs after amputation, over
burn-damaged skin, or edematous limbs.
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Explain
why compression devices increase tissue temperature
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the device insulates the area to which it is
applied.
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State
the broad physiological cause of edema:
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increased fluid in the interstitial spaces of
the body.
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Explain
the mechanisms that are in place to control edema
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maintained by the balance b/w the hydrostatic
and osmotic pressure inside and outside the blood vessels.
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Identify
the components of lymphatic fluid
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protein, water, and macrophages.
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Explain
why edema can result because of exercise, trauma, surgery, burns, infection,
airline travel, pregnancy, and other medical issues (such as CHF, cirrhosis,
acute renal disease, glomerulonephritis, malnutrition, and radiation injury):
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increase in blood flow and vascular capillary
permeability that occurs with the acute inflammation associated with these
events; prolonged sitting and the reduced external air pressure; altering
circulation or osmotic pressure balance.
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Determine
whether compression devices can be used with all types of edema and if no,
explain why
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no, because with diseases compression isn't
likely to reduce the edema and may worsen the overall health of the patient.
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Define
the term venous insufficiency
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decreased ability of the veins to return blood
to the heart.
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Explain
the broad purpose of the peripheral veins
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carry deoxygenated blood from the periphery back
to the heart.
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Identify
the primary mechanism that promotes lymphatic and venous flow
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muscle contraction
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