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causes of vasodilation

A 52-year-old member asked:
Dr. Payam Mehranpour
22 years experience in Cardiology
No...: Anxiety is usually associated with higher levels of adrenaline like hormones which typically cause constriction of vessels. Prolonged hyperventilation ... Read More

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A 24-year-old male asked:
Dr. Kirk Charles
21 years experience in Vascular Surgery
Vasoconstrict: The mechanisms of the kidneys are complex. Caffeine tends to cause vasoconstriction. The kidneys chemical mediators can counteract this effect however ... Read More
A 43-year-old member asked:
Dr. Calvin Weisberger
50 years experience in Cardiology
Histamine: vasodilation -- yes read this: http://en.wikipedia.org/wiki/Histamine
A 55-year-old member asked:
Dr. Bennett Werner
43 years experience in Cardiology
?: Do you mean inserting an IV? There would be no effect because medicines that vasodilate tend to work on arterioles, not superficial veins.
A 33-year-old male asked:
Dr. Rick Koch
Dr. Rick Koch answered
21 years experience in Cardiology
Generally the: Opposite...Vasoconstriction but as in everything there are paradoxes.
A 27-year-old male asked:
Dr. Frank Mayo
47 years experience in Pulmonary Critical Care
Vasoconstriction: Low oxygen cause blood vessels to constrict.The body is trying to use whatever oxygen is available to maintain critical body functions and constr ... Read More
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A 30-year-old male asked:
Dr. Ronald Krauser
51 years experience in Rheumatology
See details: Vasodilation but no blood thinning unless the person is an alcohol and develops major liver impairment or a low platelet count.
A 41-year-old female asked:
Dr. Prem Gupta
47 years experience in neurology
Doubtful: While vasodilitation has been reported I could not find evidence for vasoconstriction in lungs. exact mechanism is not clear. Personally I have not fo ... Read More
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A 27-year-old male asked:
Dr. Stanley Ling
Specializes in Internal Medicine
Hypotension: Any medication that will cause arterial constriction and fluid retention. So example, pseudoephedrine, salt, florinef (fludrocortisone). However befor ... Read More
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A 35-year-old male asked:
Dr. Milton Alvis, jr
40 years experience in Preventive Medicine
Too many individual: response variables; https://en.wikipedia.org/wiki/Calcium_channel_blocker has reasonable group overview. Be aware: all the calcium channel blockers, e ... Read More
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