Do dilated arteries decrease blood pressure
Dilated arteries does lower blood pressure. This is the way some blood pressure medications work.Others use diuretics. ChaCha ( Source: http://www.chacha.com/question/do-dilated-arteries-decrease-blood-pressure )
More Answers to "Do dilated arteries decrease blood pressure"
- Do dilated arteries decrease blood pressure
- Dilated arteries does lower blood pressure. This is the way some blood pressure medications work.Others use diuretics. ChaCha
- How can blood pressure be increased or decreased in the arteriole...?
- Contraction or relaxation of the walls to increase resistance and increase blood pressure.
Related Questions Answered on Y!Answers
- Do you agree that calcium channel blockers are the most dangerous blood pressure regulators?
- Q: I have always thought that a good course of action for prescribing blood pressure meds was this: angiotensin converting enzyme inhibitors like Lisinopril. After which you try strong diuretics like Lasix. If those don't work, you can try clonidine for CNS depression of cardiovascular system, or you can offer a beta blocker like Lopressor which works to slow the heart and decrease cardiac output hence pressure on arterial walls and vessels. Beta blockers are contraindicated in asthmatic patients (like myself, who hadn't had an asthma attack since I was a kid until I confidently feeling I no longer had asthma, decided it was safe to go w/ a beta blocker, but *oh no!*). So, I guess I am saying that before I would move beyond slowing the heart or knocking the CNS a bit back, those 2 being the outer limits of what is a first approach (and I'm not talking about slight hypertension, I am talking severe long-term medically dangerous hypertension that is difficult to control and not responding to diet/lifestyle modifications), the very last thing on my list is a calcium channel blocker, because it works by forcing vessels to dilate, the danger being someone who has had constricted vessels for a long time or heart conditions in general will more likely have plaque build up, blood clots, and etc. The calcium channel blocker, in my opinion, is dangerous b/c w/out the proper pre-tests, it can set someone who is pre-disposed to stroke, heart attack, or cardiac arrest due to past heart complications on a collision course with plagues that were previously lodged in places other than, say, your brain, lungs, leg arteries, and in or around the heart. Well, I finally had to go that route after unsuccessful treatment w/ everything *but* the betablocker. and clonidine only works for a short time. My diastolic pressure is the most "out there" at >100 nearly every time I test and sometimes much higher. My heart gets next to nothing in of rest between beats (and my pulse if very high at 120 +/- 10 pts at rest. That's why the betablocker was a good choice for me (too bad about the asthma). I haven't had any of the tests completed yet, and I can't really afford them right now, but I get horrible headaches and my vessels throb throughout my body. It's terrible and not an a symptomatic case in the least! Plus my biological died of stroke in her 50s, and I'm in my 30s. Any calcium channel blocker horror stories?Not true that "I have made up my mind." Obviously, I have taken the advice of my doctor and filled the prescription and started on it. I am ready to do just about anything that will help. Right now, my bp is my enemy, not my medication; still, I have been skeptical, which is why I asked the question. My blood pressure is slowly coming down, and my bood doesn't feel like a mercury guage. I am happy to read all you had to say, but wish it weren't so nastily toned toward me, personally.
- A: No.You cannot classify all calcium channel blockers (CCB) as "the most dangerous blood pressure regulators". That statement is hyperbole and filled with false assumptions.1st, there are more than one kind of CCB (dihydropyridines, NDHs). Their mechanism of action is similar but the physiological effect differs greatly, even within each subclass.2nd, many of them work well with low side effect profiles. These make a valuable adjunctive therapy or alternative therapy for patients who are intolerant/contraindicated to betablockers, ACEIs, thiazides or ARBs. Amlodipine, for example, is a valuable and relatively safe adjunctive antihypertensive.3rd, There are many antihypertensives with far worse incidences of adverse (even fatal) reactions, side effects, withdrawal symptoms and interactions.Clonidine and hydralazine top the list in all of the above categories... they cause far more iatrogenic morbidity then any of the most common CCBs. Diltiazem, amlodipine, verapamil are all "safer" medicines than clonidine and hydralazine.All of this is broad and useless generalization.Medications must be tailored to the individual.Heather, It seems that you have already made up your mind based on your own bad experiences and what you have read. You are entitled to your opinion.We will have to assume that you actually want evidence-based answers (whether or not they agree with your opinion), else you would be blogging and not asking health professionals on Y!A Medicine.Clearly CCBs are not for you. Ask your physician for one of the dozens of other options.EDIT:I apologize if my tone offended you, Heather. That was not my intention. We get alot of ranters and bloggers on Y!A Medicine who don't really want an answer. Clearly you are not one of them.I agree that CCBs are not first-line HTN meds for most patients.I must respectfully disagree that they are the most dangerous HTN meds.I am glad that your doctor is looking into other options (and the underlying cause of your resistant hypertension... I'm sure he/she has checked your kidneys and adrenals...).Consider requesting a referral to a cardiologist if your current round of meds do not work. Good luck and I hope you feel better soon.
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