pleural friction rub

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pleural friction rub

pleural rub

A friction (grating) sound heard by a stethoscope during inspiration and expiration in patients with pleuritis, due to the rubbing of the visceral and parietal pleurae.
Pleuritis, pneumonia, pulmonary embolism.

pleural friction rub

The creaking, grating sounds made when inflamed pleural surfaces move during respiration. It is often heard only during the first day or two of a pleurisy.
See also: rub


emanating from or pertaining to the pleura.

pleural effusion
accumulation of fluid in the space between the membrane encasing the lung and that lining the thoracic cavity. The normal pleural space contains only a small amount of fluid to prevent friction as the lung expands and deflates. If, however, there is a disturbance in either the production of this fluid or its removal, the fluid accumulates and threatens collapse of the lung. In extreme cases there is total collapse of the lung and mediastinal shift.
pleural friction rub
the abrasive sound made by the rubbing together of two acutely inflamed serous surfaces, as in acute pleurisy. Later separation of the surfaces by accumulated exudate marks the disappearance of the rub. The sound is synchronous with the respiratory movements.
pleural gas
may be produced by gas-forming bacteria or be caused by leakage from thoracentesis or lesions of the airways.
pleural hemorrhage
pleural infection
pleural inflammation
see pleuritis.
pleural paracentesis
pleural peel
heavy fibrinous deposits on the pleura.
pleural stripping
1. removal of the pleura at an abattoir when the tissue is discolored or superficially diseased and the remainder of the carcass is suitable for human consumption.
2. surgical removal of excessive pleural fibrin deposits via thoracotomy.