beta2 agonists

Question 1

name the most common beta 2 agonist

Answer 1

salbutamol

Question 2

name another

Answer 2

terbutaline

Question 3

what are they?

Answer 3

short acting

Question 4

an alternative usually third line treatment

what type is it

Answer 4

salmetrol

long acting

Question 5

three things used to treat and which lne

Answer 5

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

Question 6

why is long acting given with Inhaled cotercosteriods

Answer 6

without was associated with increased risk of asthma deaths

Question 7

what therapy is given via nebuliser?

Answer 7

oxygen in asthma

air on copd

Question 8

side effects

Answer 8

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

Question 9

interactions

Answer 9

beta blockers may reduce effectiveness of thes dugs

Question 10

consideration of on combined therapy or nebulised

Answer 10

K+ level

Question 11

MOA

Answer 11

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

Question 12

caution in who?

Answer 12

cvd pts with tachycardia

may initiate angina or arrthymias