Doctor insights on:
Constricted Blood Vessels Symptoms
Is there a test, not just BP, that can see if blood vessels in the symp nervous system are more constricted than they should be?
Backwards: Blood vessels do not go to the sympathetic nervous system. The sympathetic nervous system goes to blood vessels. The sympathetic & parasympathetic nervous systems are so tightly integrated with the somatic nervous system that for all intents and purposes they are 1 system. Whatever question you're trying to answer, you need to gather more facts in order to reframe it more accurately ...Read more
Both: Overall Dopamine constricts blood vessels, and this medicine is used in icus for patients with dangerously low blood pressures. However, at low doses, certain blood vessels in the body, such as the kidney, Dopamine can relax the vessels to increase blood flow (helps perfuse the kidney so that they can do their job better). ...Read more
Spotty: Heard both positive and negative results.Get a more detailed answer ›
Do SEVERE chronicMigraines (& I mean feeling carotid and head blood flow start to SURGE while constricting, )cause significant damage to blood vessels?
If I've been smoking cigarettes for 2yrs (maybe 2 packs of cigarettes a month for the past 6 months) can that cause perment constricted blood vessels?
Absolutely.: Smoking is a major cause of peripheral arterial disease (pad). In fact while pad can occur in non-smokers, smokers are at 16x higher risk. Smoking is also a major cause of coronary artery disease, which is blockages in the arteries that supply the heart. I would certainly advise quitting smoking. A combination of cessation strategies is best and this includes counseling, support groups, and meds. ...Read moreSee 1 more doctor answer
I have a little red dot right next to my cornea with blood vessels stretching out from it. Not many symptoms. Sometimes ichy. Was swollen, but briefly?
Why does caffeine and things like amphetamine salts give energy when they constrict the blood vessels?
Norepinephren: These substances increase the effect of norepinephren an excitatory brain chemical. ...Read more
If you get frequent blood vessels bursts in your eye could this be a symptom of something more serious?
Do dilated blood vessels increase perfusion and heatloss, while constricted vessels greatly reduce cutaneous blood?
Vasodilatation&const: Vasodilatation causes at the skin level -heat loss for example in fever, alcohol intoxication. Vasoconstriction reduces conservation of heat by avoiding loss of heat bec. Of the constricted vs which occurs in exposure to cold. Increased perfusion because of the vasodilatation or decreased perfusion with vasoconstr. Are initial natural protective reflexes, lost later if the initial event untrea. Ted. ...Read more
Eyedoc say blood vessels in eye constrict/unconstrict causing me to see colors, and sometimes hallucenations what could cause this? Where do I go?
Could be a migraine : I would definitely ask your eye doctor since they have already examined you but, given your age, it sounds like it may be an ocular migraine. Sometimes these migraines give strange visual phenomena (dark spots in vision, zig zag flashing lights) and are not necessarily associated with a migraine type headache. Though they seem scary, they are actually benign. ...Read more
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