Observation and Measurement of Respiratory System (EXAM1 ) Flashcards
Volume Measurement
Measures the size of the Respiratory system, can either be through airway or body surface
Volume Measurement: Airway opening
Relies on air movement to/from lungs through nose and mouth
How: via mouthpiece/mask
2 types:
Spirometer (wet and electronic)
Pneumotachometer
Spirometer
2 types: wet and electronic spirometer
Blowing into a mouthpiece
Wet Spirometer
measure of breath using water, chamber, and bell-shaped apparatus
height of bell displacement correlated with air volume
drawback: doesn’t measure speech tidal volume
Electronic Spirometer
Uses air flow and pressure sensors to estimate lung volume
compared with built-in norms of age, sex, and height
same drawback as wet spirometer
Pneomotachometer
Mask format
Senses airflow by measuring air pressure differences across a resistive screen
person breathes into mask, flow of air converted by air resistance across screen
in ml/s
Does give speech content but limited with conversation (consonants)
Volume Measurement: Body Surface
ribcage movement and abdominal muscle movement shows on body surface
2 types:
Magnetometer
Plethysmograph
Magentometer
Electromagnetic coils placed front and back of ribcage and abdomen
current passed through one coil generated EMF in other, changes in EMF occurs because of changes in abdomen/ribcage
Pretty good estimate of lung volume
Allows for greater mobility, more facial movements and speech
Plethysomgraph
Displacement of ribcage and abdomen measured by elastic coils embedded within bands
wearable in everyday life, gets most normal and varied data with speech
Pressure Measurement
Measures alveolar pressure for speech
2 types:
Intraoral Pressure Transducer
H20 Manometer
Intraoral Pressure Transducer
Can estimate alveolar pressure by converting pressure of air against the diaphragm of the transducer into electrical signals
can be embedded with dental appliance, therefore limits talking
H20 Manometer
Can also estimate alveolar pressure
Shape Measurement
Body surface measurement, magnetometer and plethysmograph
Parkinson’s disease
Progressive disease that affects basal ganglia function characterized by muscle rigidity, restricted movements, imprecise articulation, monotonous speech, and a breathy/weak voice
Parkinson’s study
14 typical and 14 parkinson’s adult male assessed on their breathing rate, lung volume, air flow, body shape, and alveolar pressure