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Old 05-06-2013
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Question Stenosis and Atresia

I know it is a real stupid question but I desperately want to know about the difference between stenosis and atresia. Also the cause of postural hypotension and also if there's anything called as postural hypertension?? hope i get some help please...
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Old 05-07-2013
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Stenosis is an abnormal narrowing in a blood vessel or other tubular organ or structure.
Atresia is a condition in which a body orifice or passage in the body is abnormally closed or absent.

Causes of Postural Hypotension: Just remember this mnemonic for this

HANDI

H = Hypovolemia, Hypopituitarism (dehydration, bleeding )
A = Addison's disease
N = Neuropathy (autonomic due to diabetics, amyloidosis )
D = Drugs ( Vasodialators, TCA, antipsychotic, Diuretics etc. )
I = Idiopathic orthostatic hypotension
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Old 05-07-2013
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Default Thanx

Thanx a lot........was a great help
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