what effect would a loss of blodd have on blodd pressure? Discuss.?

Answer 1

It would depend on the amount of blood lost, and and amount of time you wait before you take a blood pressure reading. If you loose only a small amount of blood, your body has regulatory mechanisms to kick in and adjust for the loss of volume, thus stabilizing the blood pressure. The decrease in blood will, within seconds, be detected as a decrease in bp by the barrorecptors in the carotid arteries. This will cause an increase in stroke volume to compensate for the decrease in bp thus keeping cardiac output the same. However, if the body looses too much blood (like the amount from a trauma bleed, not a blood donation) then the body can't compensate well enough, your tissues including the brain will become ischemic and you face the risk of death.

Answer 2

Your blood pressure would drop of course and the body would try to compensate by making your heart beat faster. When that mechanism wears thin, the body tries other ways to compensate. That is why anemic people are usually tired and out of breath easily. The small amount of blood they do have is busy trying to perfuse the important organs...brain and heart. When the body is no longer able to compensate, you get dizzy and pass out. Then you get a blood transfusion.

Answer 3

It would lower your blood pressure at first, then eventually increase because of the body's natural response. The water from the tissues in stimulated by Albumin and other molecules which tells the water in the tissues to enter the blood stream to increase blood pressure. Another natural mechanism is vasoconstriction which makes the blood vessles smaller, also increasing blood pressure.

Answer 4

blood pressure becomes + than the normal . Brain decides this to save the budy .

Answer 5

It would drop it. Less blood, less pressure.

Answer 6

ur B/P would fall--not as much for the heart to pump-I think ur are talking about blood.

Answer 7

your pressure would drop , may cause death.