Respiratory 2 Flashcards
Which part of the nervous system do bronchodilators target?
Sympathetic nervous system.
Have the same effects as adrenaline and noradrenaline which relax the smooth muscle in the respiratory tract.
Which part of the nervous system do anticholinergics target?
- Parasympathetic nervous system. Have opposing effects of acetylcholine. Results in bronchodilation
List 1 bronchodilator which targets the parasympathetic nervous system.
- Ipratropium
What do Xanthines do?
- Relieve and prevent bronchospasm. (Theophylline)
What do corticosteroids do to the respiratory system?
- Anti-inflammatory effects
- Reduce swelling and bronchospasm, prevents bronchospasm. ( Fluticasone)
What are the 3 main diseases that cause obstruction to airflow mainly during expiration?
- Asthma
- Chronic bronchitis
- Emphysema
Which diseases are associated with COPD.
- Chronic bronchitis
- Emphysema
Asthma affects ……
A) 15% of Australians and 35% of indigenous Australians
B) 20% of Australians and 20% of indigenous Australians
C) 10% of Australian and 25% of indigenous Australians
D) 15% of Australians and 15 % of beige nous Australians
C) 10% of Australian and 25% of indigenous Australians
Does asthma have a high or low mortality rate?
- Low
Asthma causes episodes of,
- Wheezing
- Breathlessness
- Coughing
- Chest tightness
What white blood cells are mainly associated with asthma,
- Mast cells
Allergen asthma leads to production of \_\_\_\_\_\_\_\_\_\_\_ that coats mast cells. A) IgB B) IgE C) IgA D) IgC
B) IgE
Allergic asthma cause mast cells to release inflammatory mediators such as histamine, this results in \_\_\_\_\_\_\_\_\_\_\_\_\_\_. A) bronchiole dilation B) decreased surfactant C) bronchospasm and constriction D) bradypnoea
C) bronchospasm and constriction
Cause of asthma include,
- Recurrent respiratory infections
- Environmental irritants
- Exercise
- Cold
- Stress
- Drugs
Genetic susceptibility
Asthma causes an increase in mucus secretion, this thickening of the mucus will affect the __________ ___________.
- Mucociliary escalator
Inflammation of the bronchial walls cause, A) pulmonary embolism B) pulmonary oedema C) bronchodilation D) increase in surfactant
B) pulmonary oedema
Clinical features of asthma include,
- Narrowing of airways
- Air trapped in lungs
Air trapped in lungs will cause an increase in __________ volume.
- Residual
Persistent asthma will cause airways to remodel. What happens to the bronchial walls?
- Excess smooth muscle growth
- Epithelial injury (loss of bronchial lining)
- Mucus gland hypertrophy
Asthma management includes,
- Symptom relievers
- short acting bronchodilator
- anticholinergics
- Xanthines - Symptom controllers
- long acting bronchodilators
Severe attack of asthma that is not responsive to treatment is known as status ___________.
- Asthmaticus which is a medical emergency which may require adrenaline.
What flow meter is useful for monitoring asthma?
- Peak flow meter which measures expiration flow rate
List 2 B2 adrenergic agonists.
- Salbutamol (ventolin)
- Salmeterol (serevent)
COPD stands for?
- Chronic obstructive pulmonary disease.
What is the major cause of COPD?
- Smoking
- Current or previous
- Active or passive