RD (3) Flashcards
1
Q
Deine clubbing?
A
- Enlargement of tips of fingers
- Change in the nail bed
2
Q
Causes of clubbing?
A
-Associated with lung diseases due to decreased oxygen in the blood
3
Q
VQ ratio. V meaning?
A
-Ventilation (amount of air reaching the alveoli)
4
Q
VQ ratio. Q meaning?
A
-Perfusion (amount of blood reaching alveoli)
5
Q
What occurs with ventilation/ perfusion mismatch?
A
-Hypoxemia (low levels of oxygen in the blood)
6
Q
What do pulmonary function tests do?
A
- Assess lung function
- Detirmine fitness
- Detects impairment
7
Q
Define hypoxemia
A
-Low levels of O2 in the blood
8
Q
Define hypoxia
A
-Low levels of O2 in the tissues
9
Q
Most common causes of hypoxia and hypoxemia?
A
-Ventilation- perfusion ration abnormaities
10
Q
Ventilatory function test
A
- Measures lung volume/pressure
- spirometre
11
Q
FEV1 meaning?
A
- Forced expiratory volume in 1 second
- Normal range =80%
12
Q
FVC meaning?
A
-Forced vital capacity
