Module 6: Respiratory Disorders Flashcards
Dyspnea
Discomfort in breathing (shortness of breath)
Orthopnea
Discomfort in breathing while lying down
PND
Paroxysmal nocturnal dyspnea - waking up at night unable to breathe normally
Hemoptysis
Coughing up blood
Cyanosis
Bluish pigment of skin and mucous membranes due to increased amount of deoxygenated hemoglobin in the blood
Clubbing
Selective bulbous enlargement at the end of a finger
Hypercapnia/hypercarbnia
Increased amount of arterial carbon dioxide
Hypoxemia
Reduced oxygenation of arterial blood
Hypoxia
Reduced oxygen supply to tissues
V/Q ratio
Refers to the ratio of air reaching the alveoli (ventilation) and the blood that the alveoli receives via capillaries (perfusion)
Physiological right to left shunt
Blood moving through unventilated parts of the lungs so no GAS EXCHANGE occurs between alveoli and the blood. Basically, blood moves from the right ventricle, to the lungs, then to left ventricle without being oxygenated
Flail chest
Chest moves in with inspiration and out with expiration (paradoxical movement) caused by trauma to chest that fractures consecutive ribs
Pneumothorax
Presence of air in the pleural cavity caused by a rupture in visceral or parietal pleura
Pleural effusion
Excess fluid in the pleural space
Empyema
Infected pleural effusion
Atelectasis
Collapse of lung tissue
Pulmonary embolism
Occlusion of a portion of a pulmonary vascular bed by an EMBOLUS
Pulmonary hypertension
Elevated mean pulmonary arterial pressure
Cor pulmonale
Right heart failure caused by lung disease
COPD
Chronic obstructive pulmonary disorder - characterized by airway obstruction that caused difficult EXHALATION (emphysema and chronic bronchitis)
Air trapping
Difficulty to move air out during exhalation
Chronic bronchitis
Hypersecretion of mucous and productive cough for 3 months for at least 2 consecutive years
Emphysema
Loss of LUNG ELASTICITY and abnormal enlargement of airspaces distal to terminal BRONCHIOLES with destruction of alveoli walls and capillaries
Pink puffer
Term used to describe those who suffer from emphysema. Starts off with less hypoxemia because they can still get adequate oxygen but must use accessory respiratory muscles
Blue bloater
Those who suffer from chronic bronchitis, blood is not well oxygenated hence the blue, bloater refers to edema caused by eventual right heart failure
ARDS
Acute respiratory distress syndrome -severe form of acute lung injury involving inflammation of the lungs and injury to alveolocapillary membrane
Acute respiratory failure
Inadequate gas exchange leading to: lower PaO2 levels, higher PaCO2 levels and pH higher than 7.30
Hypoxemic respiratory failure
Respiratory failure due to failure of gas exchange in the lungs (from V/Q mismatch)
Hypercapnic/hypoxemic respiratory failure
Respiratory failure due to problems with VENTILATION
Croup
Barking cough
Stridor
Wheezing sound during inspiration indicates obstruction in upper respiratory tract
Retraction
Indentations in skin around ribs and sternum, indicating chronic use of accessory respiratory muscles to breathe