The circulatory system is basically a closed system of plumbing containing a set amount of fluid inside, with vessels of a set diameter. If you had chemistry, you will remember that you can control pressure easiest that way. A set amount of pumping strength, on a set amount of fluid in a closed system will maintain a set pressure. You can change that pressure by either having the pump work less forcefully, by removing some fluid, or by getting larger pipes. Well, in the human body, you can t adjust the heart and you really wouldn t want to. You also can t replace the plumbing, so that only leaves the option of removing some fluid. A diuretic does that by drawing water out of the body. The drugs make the kidneys filter out more water from the blood, and it s eliminated. The result is that blood pressure drops because there isn t as much blood in the system to pump around. For mild hypertension, it s usually the best option. It lets you control the pressure while the person works on other things to replace the need for medication- stuff like the diet, weight loss and exercise, which will take a bit to have an effect. Those will work, but they can take months to start lowering blood pressure. In the meantime, the diuretic will help a lot to prevent damage to the body.
Maintain the blood pressure need three factors;heart pumping force,blood volume and the Resistance of blood vessel(arteries)High blood pressure are due to abnormal high of those factories.That is the treatment are aim to those factors.First line of drug is diuretic which reduce the volume by push fliud out of body,if not work will add second line of drugs;such as beta blocker,calcium blocker to slow the heart to reduce the pump force,then still not work well will add other to dilate the vessel(arteries) to reduce the resistance of blood go through it.All these drugs can work singularly or together to reach the goal to reduce the abnormal high pressure.
They rid the body of excess fluids therefore the heart will not have to work as hard to pump more volume, thus reducing blood pressure RN
Just like the RN said and they re a real pisser!
Diuretic inhibit sodium and chloride reabsorption at the proximal tubules, distal tubules and ascending loop of henley leading to excreation of water together with sodium, chloride and potassium. thus fluid in the body will decrese as well as the blood pressure level.
High blood pressure is due to excessive volume in the blood vessels. By sheer volume, it exerts more pressure on the vessels and increases the work load of the heart--more volume to pump. A diuretic releases excess volume from the body, which lowers blood pressure. Blood pressure is directly related to the volume in the body s vasculature.
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