Respiratory system linking symptoms and physiology Flashcards
1
Q
Static lung measurement
A
- Measures capacity and volume
- Information about restrictive lung diseases - lung cancer
2
Q
Dynamic measurement
A
- How quickly air can be moved out or into the lung
- Asthma and COPD
3
Q
Symptoms of Asthma
A
- Shortness of breath
- Wheezing when exhaling - recoil difficult
- Tightness of chest
- Chronic cough
- Variable breathing
4
Q
Asthma
A
- Chronic inflammatory disorder of airways (could be genetic)
- Reversible airway obstruction to increase airway response
- Airway obstruction
- Bronchospasm
- Airway remodelling
5
Q
What causes asthma
A
- House dust mite
- Pets
- Fungal spores
- Smoking
- Pollution
6
Q
Asthma on peak flow meter
A
- Peak flow drops early
- Also late phase response
7
Q
Lumen of the artery of Asthma patient
A
- Increased smooth muscle growth
- Bronchoconstriction smooth muscle contraction during an asthma attack
- Airways are narrower
8
Q
Blocking of lumen alveoli
A
- Mucus formation in addition to bronchoconstriction less oxyen reaching bloodstream
- Must work harder to overcome increased resistance
9
Q
Nor-adrenaline effect on muscles
A
- Relaxes the airway by dialating the smooth muscle - Adrenergic receptor beta 2
- Agonist such as Salbutamol
- Small activity on Beta 1 receptors
10
Q
Mechanism of Salbutamol
A
- Salbutamol binds to the receptor releasing the alpha and GTP to bind to adeynyl cyclase
- Second messenger for protien kinase to relax the lungs
11
Q
Inhaler types
A
- Preventer inhaler and reliever inhaler
12
Q
Meter-dose inhaler
A
- Device make aerosol
- Breath slowly and deeply
- Use a spacer device
13
Q
Dry powder inhaler
A
- Breathing hard and fast suck power into the mouth
- Cannot use spacer
14
Q
Good inhaler technique
A
- 20% into the lung 80% in the gut
- Causes heart tremmors through the gut side effects
15
Q
Peak expiration flow
A
- Measure how quickly you can blow air out of the lungs
- Seal mouth put meter to zero
