Tetrodotoxin blocks nerve impulse/junctional trans mission by:
Anonymous Quiz
21%
Anticholinergic actionB
35%
Depleting acetylcholine
38%
Blocking Na+ channels
6%
Blocking Ca2+ channels
❤1
The choline ester resistant to both true and pseudo cholinesterase is:
Anonymous Quiz
22%
Methacholine
49%
Bethanechol
22%
Benzoylcholine
8%
Butyrylcholine
❤1
Pilocarpine is used for:
Anonymous Quiz
57%
Glaucoma
4%
Paralytic ileus
5%
Urinary retention
35%
All of the above
❤1
The following is an α adrenergic agonist used as eye drops to lower intraocular pressure:
Anonymous Quiz
18%
Brinzolamide
25%
Bambuterol
30%
Brimonidine
26%
Latanoprost
Which is the most important drug in the treatment of organophosphate poisoning:
Anonymous Quiz
50%
Atropine sulfate
43%
Pralidoxime
5%
Diazepam
1%
Adrenaline
The most effective antidote for belladonna poisoning is:
Anonymous Quiz
17%
Neostigmine
71%
Physostigmine
9%
Pilocarpine
3%
Methacholine
👍1
Atropine is contraindicated in:
Anonymous Quiz
21%
Pulmonary embolism
34%
Digitalis toxicity
10%
Iridocyclitis
35%
Raised intraocular tension
Which of the following is a noncatecholamine sympathomimetic
Anonymous Quiz
14%
Adrenaline
41%
Ephedrine
20%
Dopamine
25%
Isoprenaline
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Which of the following routes of administration completely avoids first-pass hepatic metabolism?
Anonymous Quiz
9%
Oral
19%
Rectal
63%
Sublingual
10%
Intraduodenal
👍1
Which pharmacokinetic parameter is most directly related to the rate of drug elimination?
Anonymous Quiz
25%
Volume of distribution
12%
Bioavailability
55%
Clearance
8%
Half-life
👍1
A drug has a high volume of distribution (Vd). Which statement is most likely correct?
Anonymous Quiz
9%
The drug is mainly confined to plasma
74%
The drug is extensively distributed into tissues
14%
The drug is rapidly eliminated by kidneys
3%
The drug has poor tissue penetration
👍1