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A member asked:

Why blood go up the tube during blood draw?

A doctor has provided 1 answer

Pressure gradient: There is a pressure gradient that allows the he vein into the blood to flow from tube.

Dr Ibrahim agreed

Answered 1/19/2020

5k views

Thank

Related Questions

A member asked:

How many blood draws in short period of time before volume depletion/shock becomes a real issue? I understand I'll be getting a test which requires like 30 tubes to be taken, then will get more tests for three consecutive days.

4 doctors weighed in across 3 answers

A member asked:

Blood draw fromButterfly needle with clean tube attachedat Clininc ,wanted to know hiv dies once dried inside needle ? HIV would die within minutes ?

A doctor has provided 1 answer

A member asked:

I had my blood drawn today. When the tech pulled out the needle/last tube, I heard what seemed to be a release of air or pressure. I've never heard that sound before. Is it possible air was pushed into my vein? How do I know if air is in my vein?

A doctor has provided 1 answer

A member asked:

Blood draw from clinic , had to take sample myself to another clinic only 15 minute drive . Vaccutainer test tube was in my car room temperature Clinic checked sample said would be good for 2days and is okay Would it effect hiv test accuracy ?

A doctor has provided 1 answer

A member asked:

Could 6 tubes of blood draw over 3 weeks quickly worsen anemia symptoms of a severely anemic person (half the blood volume, half the rbc)?

2 doctors weighed in across 2 answers

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