At what height blood can eject from human vein ? I see, sometime there is direct

Question

At what height blood can eject from human vein ? I see, sometime there is direct blood transfer from one person to patient. So sometime blood bottle is kept at certain height and blood is transfered from person to upper bottle and then from that bottle to patient directly. At what height blood can go ?

For example, I had not mentioned before, What would be the blood pressure outside from body after cutting certain nerve or vein or whatever which carries blood-speedily, when we go inside vacuum chamber ?
Consider any chamber where you will be able to remove air/atmosphere inside it and a person is provided with oxygen cylinder. Now what will be the blood ejection speed outward from the body ? At what height ? You will have to consider atmospheric pressure also when we leave normally on earth. So question is, at what height in vacuum (where there is no pressure from outside world) ?

Explanation / Answer

Ah, I'm afraid there are a near infinite number of variables that will make a general answer impossible. Factors such as: age, sex, weight, which vein, additional damage, heart condition, cholesterol level, body position, body temperature, and how the vein was cut and exposed will all lead to different answers.

A general answer from someone with lots of trauma experience, not very far. Rarely if ever greater than 10cm. Veins just don't have the pressure that arteries do.

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.