Edema Flashcards
Causes of edema due to increased hydrostatic pressure
CHF
Ascites
LE inactivity with prolonged dependency
Causes of edema due to lymphatic obstruction
Neoplastic
Post irradiation
Wuchereria bancrofti filariasis
Causes of edema due to reduced oncotic pressure
Nephrotic syndrome
Liver cirrhosis
Malnutrition
Protein losing gastroenteropathy
Complications of subcutaneous edema
Impaired wound healing
Impaired clearance of infection
Locations of edema in renal dysfunction
Generalized
Periorbital
Sectioning of lungs yields frothy, blood-tinged fluid.
Pulmonary edema
Clinical consequences of pulmonary edema
Impeded oxygen diffusion
Favorable environment for bacterial infection
Complications of cerebral edema
Compression of medullary center leading to death
Features of acute passive congestion of the lungs in acute LVF
Transudate in alveoli
Pulmonary edema
Microscopy of lungs shows engorged alveolar capillaries, alveolar septal edema, and focal intra-alveolar hemorrhage
Acute passive congestion of the lung
Microscopy of liver shows distended central veins and sinusoids, centrilobular hepatocytes may undergo ischemic necrosis, and fatty change in periportal hepatocytes.
Acute passive congestion of the liver
Consequences of chronic passive congestion of the lungs 2/2 to chronic LVF
Microhemorrhages
Thickened and fibrotic alveolar septae
Fibrotic pulmonary interstitium
Microscopy of the lungs shows hemosiderin laden macrophages
Chronic LVF causing chronic passive congestion
Microscopy of the liver shows hemosiderin laden macrophages and centrilobular hemorrhage with variable necrosis. Nutmeg liver.
Chronic passive congestion of the liver