Addicudo
Forum Guru
Topics: 124
Posts: 612
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Which of the agents listed below is an antagonist of V2 vasopressin receptors?
1. Furosemide
2. Thiazides
3. Water
4. Ethanol
5. Carbonic anhydrase inhibitors (Diamox)
6. Spironolactone
7. Triamterene
A. Only 1
B. Only 2
C. 3 + 4
D. Only 7
E. None of the above
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| Leopard
Forum Guru
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None of them are direct antagonist of V2 receptors.
Thiazides are used in SIADH.But their mode of action is "Volume depletion".
If you consider that Vasospressin Accelerate the Na-K -2C transporter at TAL ,then Furosemide is direct antagonist.
Best of luck
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| ssrpk
Forum Fanatic
Topics: 154
Posts: 2,816
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hey addicudo, leo thinks u're always making mistakes with the questions 
besides , thiazides are useful in Diabetes Insipidus, not SIADH!
demeclocycline and lithium antagonizes ADH
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| Leopard
Forum Guru
Topics: 30
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Thanks SSrPk ,thiazides are used in NDI not in SIADH ,that was really a mistake.Probably very hastely posted reply.Please read NDI in place of SIADH
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| ssrpk
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Topics: 154
Posts: 2,816
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don't feel so bad buddy, u are too good, be careful on the exam and u'll ace it!
when are u taking it?
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| Leopard
Forum Guru
Topics: 30
Posts: 401
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Not the question of feeling bad.Today I seem to be much exausted metally because I have comitted many other mistakes .LOL
Seems as I should take rest for one week.
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