Asthma

Question 1

What is the forced expiratory volume?

Answer 1

The amount of air expelled when patient tries really hard

Question 2

What are the 3 parts to ashma therapy?

Answer 2

Moniter lung function (forced expiratory volume)

Avoid triggers

Drugs to control symptoms

Question 3

How does the SNS control bronchial tone?

Answer 3

NA & A in blood

β2 receptors = decreased mucous secretion into bronchial lumen & increase cAMP = bronchodilation

Question 4

How does the PSNS control bronchial tone?

Answer 4

ACh

M3 receptors = increased mucous secretions into bronchial lumen & produce IP3 & Ca = bronchoconstriction

Question 5

Is it the sympathetics or the parasympathetics that are activated in asthma?

Answer 5

Parasympathetics

Question 6

In which 3 ways are asthma drugs administered?

Answer 6

Metered dose inhaler (liquid)

Spinhaler (powder)

Spacer dispenser

Question 7

Which 3 drugs can induce asthma?

Answer 7

NSAIDs e.g. aspirin (increased leukotrienes)

Beta blockers e.g. propanolol & atenolol

Anticholinesterases e.g. neostigmine

Question 8

Which 3 drug types do we use for long term control of asthma?

Answer 8

Beta 2 adrenoreceptor agonists

M3 muscarinic receptor antagonists

Phosphodiesterase inhibitor & adenosine antagonist (Theopylline)