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OBSTRUCTIVE LUNG DISEASE (EMPHYSEMA (COMPLICATIONS (AIR EMBOLISM, RIGHT…
OBSTRUCTIVE LUNG DISEASE
ASTHMA
DISEASE CHARACTERISED BY +VE IRRITABILITY OF TRACHEOBRONCHIAL TREE RESULTING IN SUDDEN NARROWING OF THE BRONCHIAL AIRWAYS WHICH MAY REVERSE SPONTANEOUSLY OR UNDER TREATMENT
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CHRONIC BRONCHITIS
PRODUCTIVE COUGH IN ABSENCE OF CARDIAC/PULMONARY DISEASE, PRODUCED FOR 3 MONTHS OF THE YEAR FOR 2 CONSECUTIVE YEARS.
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EMPHYSEMA
PERMANENT +VE IN SIZE OF AIRSPACES DISTAL TO TERMINAL BROCHIOLE(ACINUS) ACCOMPANIED BY DESTRUCTIVE CHANGES.
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EFFECTS
+VE DEAD SPACE IN ALVEOLI & -VE SA FOR GAS EXCHANGE RESULTING IN HYPOXIA WHICH CAUSES SMALL ARTERIES TO SPASM
ANASTOMOSES ARE OPENED BTW PUL. ARTERY & BRONCHIAL ARTERIES WITH BLOOD AT SYS. PRESSURE RESULTING IN PUL.. HPT.
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