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LOBAR PNEUMONIA - Coggle Diagram
LOBAR PNEUMONIA
SIGNS AND SYMPTOMS
decrease in chest expansion
SOB
cough
air sac filled with pus and fluid
Chest pain
Pyrexia (high temperature)
Dull to percussion
Tactile fremitus
palpable vibration of chest wall
Bronchial breathing
4 STAGES OF LOBAR PNEUMONIA
Congestion
-lung is heavy and red
-due to vascular engorgement (part have been swollen/filled with fluid) and intra-alveolar fluid with few neutrophils
Red hepatization
-Large flowing exudation with RBC, neutrophils and fibrin into alveolar spaces
-lobes- red, firm, airless with liver-like consistency (smooth, no irregularities)
Gray hepatization
-follows with progressive disintegration (bertambah perpecahan) of red cells and persistence of fibrino-suppurative exudate (plasma + dead neutrophils, fibrinogen, necrotic parenchymal cells) resulting in grayish dry.
Resolution or scarring
-
Resolution
- due to
decrease of infection and enzymatic digest of exudate
which can be
reabsorbed, ingested by macrophages
cleared via muco-cilliary escalator
-
Scarring
- due to
organization of exudate, infiltration of fibroblasts
and
deposition of collagen
DEFINITION
refers to the infection of one lobe of a lung
GROSS PICTURE
RED HEPATIZATION
GRAYISH
HISTOLOGY LOBAR
fills with inflammatory cells and oedema
affects a section of a lobe
starts distally and spreads to involve entire lobe
M>F; 3:1; neglected people (lack of proper care)
