Oedema

st20037616
Mind Map by st20037616, updated more than 1 year ago
st20037616
Created by st20037616 over 6 years ago
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Description

oedema

Resource summary

Oedema
  1. "isotonic expansion of the interstitial compartment"
    1. = inc.vol of fluid btwn cells
      1. =cells pushed away from blood supply = cell death
      2. Mechanisms:
        1. inc cap b/p (RVF /LVF)
          1. trauma/damage to tissues
            1. inflamation/infection
              1. raise of histamine (hayfeaver -inflam reducing)
                1. RVF
                  1. Blood accumilation in RV and RA - inc Venous press - inc cbp - excess isf = oedema (lower limbs)
                  2. LVF
                    1. Blood accum in LV and LA - inc venous pul pressure - inc pul capp bp - excess isf = pumonary oedema (impaird gas exchange/diff breathing)
                  3. dec oncotic press due to plasma pr
                    1. Dec plas pr levels
                      1. Malnutrition-pr (Kwarsiokor)
                        1. renal /liver dis
                          1. severe burns
                        2. inadaquate lymph draining
                          1. lymphatic removal/blockage/tumor
                            1. elevated cvp
                            2. inc cap permability
                              1. Arterial dilation (pre-cap)
                                1. Venular constriction (post -cap)
                                  1. Inc venous pressure
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