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By sticking a needle in your vain, and using a pump to extract blood:)

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14y ago

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How do doctors check how much blood you have in your body?

Doctors don't check how much blood you have in your body. They do a best guesstimate based on size and weight. Some lab tests check the relative and absolute numbers of blood cells per unit volume.


What to do on the first day or nursing duty?

they take blood pressures, take x-rays to doctors, give injections to people, flirt with doctors lol


Can a blood test show what kind of pills someone has taken?

Yes. If you take a drug test, doctors will know by the elements in your blood, as drugs stay in your body for some time, and that may be a long time in cases.


What separation techniques do doctors?

Filtering blood from a patients body and making sure it is clean


Where do the blood vessels take blood to?

everywhere in your body.


What does blood in veins do?

they take blood to the heart or take through you're body


What dos red blood cells do?

Take blood around your body.


Before heart a surgery do doctors connect the patient to a machine that pumps the blood for the heart?

yes because then you will die if no blood is pumped through your body :P


How much of water in blood-?

The composition of water in our blood is about 92%.


Who earns more vets or doctors?

docters because they take care of the human body


How much time does it take for your blood to drain out your body?

The time it takes for blood to drain out of the body can vary depending on factors such as the size of the blood vessels, the amount of blood in the body, and the cause of bleeding. In general, it can take a few minutes to several hours for all the blood to completely drain out.


How long does it take for your blood to circulate throughout your body?

It takes about 1 minute for your blood to circulate throughout your body.