PNS 3

Question 1

Synthesis of catecholamine 
Tyrosine \_\_\_\_\_\_\_\_\_\_ --> Dopa
Dopa \_\_\_\_\_\_\_\_\_\_\_--> dopamine
dopamine\_\_\_\_\_\_\_\_\_--> Norepinephrine 
NE \_\_\_\_\_\_\_\_\_\_\_--> epinephrine

Answer 1

Tyrosine (hydroxylation) –> Dopa
Dopa (decarboxylation) –> dopamine
dopamine (hydroxylation)–> Norepinephrine
NE (methylation) –> epinephrine

Question 2

Which drug will result in the least common vasodilation

Answer 2

Norepinephrine

– no b2 effect

Question 3

Which causes D1 receptor mediated vasodilation at low doeses

Answer 3

Dopamine

Question 4

Which is the drug of choice for treatment of bronchial asthma

Answer 4

Albuterol