usmle_exam2005
Forum Newbie
Topics: 8
Posts: 33
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HI:
Anybody has taken NBME form3 exam..How did you feel? ..I took it but found it very hard.
Thanks
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| laura_gnaoh
Forum Newbie
Topics: 3
Posts: 21
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Hi,
I took it today.Found NBME 3 's is harder than the I .More diagram & charts.
I almost run out of time in the last block bc stuck in a statistic Q.
I have some Q to discuss. Will write in the next post. So, guys, if u haven't took NBME 3 yet, u shouldn't read those.
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| laura_gnaoh
Forum Newbie
Topics: 3
Posts: 21
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1. 10 y.o girl with familial Dysautonomia manifested by debilitating orthostatic hypotension, most severe in the morning despite Rx with Fludrocortisone. Now the physician will treat her w. an oral drug to increase her BP. What will he prescribe?
a. Pure anpha agonist.
b.Pure beta agonist
c. Pure beta antagonist
d. Pure muscainic agonist
e.nicotinic antagonist.
2.When fluid goes through a 0.4 micron filter, which of following will be removed?
a.HSV
b.HIV protease
c.LPS
d. Mycoplasma Hominis
e. Staph. Aureus
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| Shakeels
Forum Guru
Topics: 27
Posts: 468
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let me solve,
1. beta antagonist.
2. Staph aureus.
but I'm not 100% sure of it.
Does it say in q that pure beta 1 or beta 2 antagonist or just beta antagonist???
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| laura_gnaoh
Forum Newbie
Topics: 3
Posts: 21
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Could u explain sthg..
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| laura_gnaoh
Forum Newbie
Topics: 3
Posts: 21
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If u take beta blocker for 1, it will deccrease the BP more ( it's a Drus for HTN, e.g. Propranolol), right?
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| laura_gnaoh
Forum Newbie
Topics: 3
Posts: 21
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It say exactly "pure", dear, i stuck w it for long long time...
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| Shakeels
Forum Guru
Topics: 27
Posts: 468
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oh yeah, its to treat hypotension, its must be alpha agonist, I'm 90% sure of it.
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| laura_gnaoh
Forum Newbie
Topics: 3
Posts: 21
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I chose alpha agonist too, Shakeels. But wonder... For alpha 1 agonist, it increase vascular constriction. alpha 2 agonist is in CNS, we don't mention here.
For Beta agonist, B1 receptor in heart , B1(+) cause increase in contraction --> increase BP.
B2 in blood vessel, B2(+) cause dilation of vessels --> decrease BP ???
So, i'm a little confused.
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| Shakeels
Forum Guru
Topics: 27
Posts: 468
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well, if its pure alpha aganoist, then it will enhance more effect on alpha 1 then alpha 2. I think this is the final answer.
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| laura_gnaoh
Forum Newbie
Topics: 3
Posts: 21
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Yes, now i see it must be a. Definitely.
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