pulmonary Flashcards
lobes
right- upper/superir, middle, lower/inferior (3 lobes)
left- upper and lower lobes (2 lobes)
equivalent to the right middle lobe on the left side is called the lingula.
pulmonary function tests
- spirometry is a versatile test of pulmonary physiology
- pulmonary function testing assesses: mechanical properties of the respiratory system (measures expiratory volumes and flow rates)
tidal volume
the volume of air inspired and expired during each respiratory cycle when at rest
inspiratory reserve volume
the max amount of air that can be inspired above tidal volume
expiratory reserve volume
the max amount of air that can be expired after normal tidal volume
residual volume
air that remains after max expiration which doesn’t participate in gas exchange
total lung capacity
the sum of residual volume, tidal volume, max expiratory reserve volume, max inspiratory reserve volume
restrictive disease
any respiratory problem where patient cannot fully expand lungs to take in a normal deep breath (due to chest cage, lung, or nervous system disease)
- could even be a fractured rib
- once patient has inhaled, they can exhale no problem.
Restrictive Breathing Pattern: central nervous system
polio obesity guillain barre syndrome flail chest (multiple broken ribs) diaphragm paralysis spinal cord disease pleural effusion and pleural disease
Restrictive Breathing Pattern: lungs
congestive heart failure advanced lung cancer pulmonary edema lung fibrosis sarcoidosis pneumonia
Obstructive Disease
The characteristic of this group is difficulty getting all the air out. (This is the largest group of pulmonary diseases.)
examples of obstructive disease
Asthma, chronic bronchitis, and emphysema
The major distinction between restrictive and obstructive lung disease is…
….is between difficulty getting all the air in (restrictive) and getting all the air out (obstructive).
Chronic Obstructive Pulmonary Disease
Chronic Obstructive Pulmonary Disease, or COPD, is a term primarily used to describe two diseases that affect the lungs—chronic bronchitis and emphysema. COPD causes progressive damage to the lungs.
chronic bronchitis
- inflammation of the bronchial tube lining (excess production of mucus)
- irritation causes scarring and thickening of the lining of the bronchial tubes
- smoking is the most common cause of irritation
- airway flow may be obstructed
- repeated exposure to irritants causes chronic bronchitis
- inflammation is caused by smoke, infections, chemicals, pollution, or stomach acid
symptoms of chronic bronchitis
- wheezing
- coughing
- extreme mucus production
- SOB with exercise especially
- chest tightness
characteristics of chronic bronchitis
- persistent cough
- hypoventilation
- cyanosis
- edema
characteristics of emphysema
- chronic dyspnea (breathlessness)
- hyperinflation with barrel chest
- cyanosis and edema are rare
clubbing of fingers results from…
chronic hypoxia to nail beds
cyanosis
bluish coloration of the skin due to presence of deoxygenated hemoglobin in blood vessels near the skin surface
-can occur in fingers, under fingernails, and other extremities (peripheral cyanosis) or in the lips and face (central cyanosis)
treatment of COPD
- slow down lung damage
- manage symptoms (cough. SOB)
- improve quality of life
- improve general fitness
- decrease flareups