Asthma / COPD / Smoking Cessation Flashcards
(244 cards)
What is the goal of Pulmonary function Tests
See how much air lungs will hold
how quick breathing is
What is IRV,VC, TLC,FRC, RV, ERV?
IRV- space to breathe in more
VC= Total air that can move in lung
TLC= Total air that can be in lung
FRC= volume of air that can still in after normal expiration
RV= air that is always in lung
ERV=max air exhaled below TV
What is FEV1?
Amount of air that can be expelled in 1 second
What is FVC?
Total volume air expired as rapid as possible
What is a high/normal FEV1/FVC ratio mean
Restrictive lung disease because hard to get air in so both values are low and may appear normal.
What does a low FEV1/FVC ratio mean
Obstructive lung disease because hard to get air out= FEV1 is low
What do we use spirometry tests for?
Diagnose lung disease
Measure extent- FEV1/FVC ratio
monitor progression
most accurate- compare to their normal
How do you run a spirometry test?
Tell patient to take deepest breath possible then exhale into sensor as hard as they can for at least 6 seconds.
Cons of spirometry tests.
Need full cooperation of patient
Do NOT use in:
people with risk of infection, high cranial and thoracic pressure= post surgery
What increase of FEV1 indicates bronchodilator response (asthma disease)
12%
What is a peak expiratory flow rate test do?
Portable meter to see forced expiration
What are cons of peak flow?
Need maximum effort for accuracy
proper technique
for self monitoring
What do we use Carbon Dioxide diffusing capacity for?
When we want to see the ability of diffusion of CO2 in alveoli
What is the pulse oximetry test?
Uses light absorptive of hemoglobin to determine oxygenation.
If you have issues with breathing what compensation will occur to balance pH
Metabolic/ kidneys will retain bicarbonate.
Which compensation mechanism is quicker respiratory or kidney?
Respiratory
How do you calculate Anionic Gap?
AG= Na- (Cl+HCO3)
What does it mean if you have high Anionic Gap?>11
Metabolic Acidosis
What is bronchoscopy?
Endoscoping the airways through mouth or nose
Determine Abnormality pH-7.1, PaCo2= 25, HCO3= 10
Due to the fact that pH is low it is acidosis, to determine if metabolic we see that HCO3 is low so it is metabolic PaCO2 is low only for compensatory
Determine abnormality, pH 7.32, PaCO2 51, HCO3=25 , PaO2= 70 and has cystic fibrosis.
Acidosis due to pH and respiratory due to compensatory HCO3 is normal because it takes days.
True of False: The majority of people with asthma have poor control.
True
True or false: When controlled Asthmatics have the exact same QoL and lifespan.
True
When in childhood which gender is more common with asthma and why?
males due to their airway being smaller