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Kaplan Qbank USMLE



Author5 Posts
  #1

Match the drug listed in the answers below with the most appropriate description of its therapeutic application or pharmacologic effects in the items below. Answers may be used once, more than once or not at all

a) isoflurane
b) neostigmine
c) physostigmine
d) carbachol
e) pralidoxime
f) atropine
g) hexamethonium

1) reversible inhibitor of acetylcholine, used for myasthenia gravis
2) a direct cholinergic agonist with muscarinic activity
3) counteracts effects of irreversible cholinesterase inhibitors
4) irreversible cholinesterase inhibitor
5) produces immediate mydriasis but could exacerbate glaucoma

  #2

1.B
2.D
3.F and E
4. :?: I know ecothiopate,malathione and parathinone
5.F

  #3

Correct answers

1 b
2 d
3 e
4 a
5 f

  #4

I DIDN'T KNEW THAT ISOFLURANE IS IRREVERSIBLE CHOLINES. INHIBITOR :roll:

  #5

Sorry i meant to type Isoflurophate :oops: which is an organic phosphate which is an irreversible inhibitor of acetylcholinesterase. It binds covalently to acetylcholinesterase, irreversibly inactivating the enzyme. This inactivation can be reversed by pralidoxime







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