Spirometry Flashcards
How is vital capacity measured?
Measured with spirometer
Vital Capacity Definition
the maximum amount of air a person can expel from the lungs after a maximum inhalation
What does it mean if vital capacity is low?
can indicate a restrictive lung disease or condition like pulmonary edema or lung tumor
Inspiratory Capacity (IC)
The maximum volume of air that can be inhaled after a normal exhalation.
Expiratory Reserve Volume (ERV)
The maximum volume of air that can be exhaled after a normal exhalation.
Residual Volume
- volume of air that remains in the lungs even after a maximal exhalation.
- prevents lung collapse
Total Lung Capacity
- the maximum amount of air the lungs can hold after a maximum inhalation.
- sum of all lung volumes, including the tidal volume, expiratory, and inspiratory.
Tidal Volume
volume of air inspired or expired with each breath
Eupnea
Normal breathing, about 12-20 breaths per minute.
Bradypnea
Decreased breathing rate.
Hyperpnea/Tachypnea
Increased breathing rate.
Apnea
Temporary cessation of breathing.
Terminal/Apneustic Breathing
Shallow, labored, slow breaths, often seen in individuals close to death.
Asphyxia
inability to breathe
What does smoking put you at risk for?
Emphysema - breakdown of alveolar walls
