OSA - 207 Flashcards
What are the symptoms of OSA?
Loud snoring (95%)
Day time sleepiness
Un-refreshed sleep
What score can you use to grade/rank the likelihood of OSA?
Epworth sleepiness score
What is the definition of OSA?
Stopping or slowing breathing during sleep due to obstruction/narrowing in the upper airway -> pharyngeal incompetence
Is OSA more common in men or women?
Men.
In what category is OSA prevlance highest?
Type 2 diabetics
Name at least 5 risk factors for OSA
Obesity Hypothyroidism smoking acromegaly nasal problems alcohol sedatives menopause neuromuscular disease
Why is smoking a risk factor for OSA?
It causes pharyngeal oedema
What is type 1 respiratory failure?
Low O2 levels in the blood without high CO2 levels (hypercapnia).
Typically caused by VQ mismatch.
What is type 2 respiratory failure?
Low O2 levels and high CO2 levels (hypercapnia).
Caused by inadequate alveolar ventilation
COPD can cause what type of respiratory failure?
Type 2
High altitude can cause what type of respiratory failure?
Type 1
What happens to FEV1 and FVC in restrictive lung disease?
They are both reduced
What happens to FVC and FEV1 in obstructive lung disease?
FVC normal
FEV1 low
What type of Acid-Maltase Deficiency has the best prognosis?
Adult.
Juvenile has limited survival. Infantile (Pompe’s) has a poor prognosis, death is usually before 2 years
Why can people with acid maltase deficiency have difficulty swimming in pools?
Diaphragmatic involvement is common -> when lying supine the abdomen will fill the chest if the diaphragm is involved, this compresses the lungs.
