beta2 agonists Flashcards

1
Q

name the most common beta 2 agonist

A

salbutamol

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2
Q

name another

A

terbutaline

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3
Q

what are they?

A

short acting

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4
Q

an alternative usually third line treatment

what type is it

A

salmetrol

long acting

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5
Q

three things used to treat and which lne

A

asthma -1st line - long acting- 3rd line but always with inhaled corticosteroids
COPD - 1st line, long acting, second line
hyperkalaemia

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6
Q

why is long acting given with Inhaled cotercosteriods

A

without was associated with increased risk of asthma deaths

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7
Q

what therapy is given via nebuliser?

A

oxygen in asthma

air on copd

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8
Q

side effects

A
b2 activation - fight or flight
tachycardia
tremor
anxiety 
palpitations 
glycogenlyosis therefore may increase serum glucose
reduced K+
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9
Q

interactions

A

beta blockers may reduce effectiveness of thes dugs

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10
Q

consideration of on combined therapy or nebulised

A

K+ level

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11
Q

MOA

A

b2 receptors on SM of bronchi
stimulating these receptors causes relacation to relieve breathelnessness
stimulates Na K ATPase pump causes K to shift from extracellular to intracellular compartment therefore good for hyperkal treatment

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12
Q

caution in who?

A

cvd pts with tachycardia

may initiate angina or arrthymias

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