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How the syringes are used to take blood for blood tests?

Asked by Topperlearning User 19th August 2014, 9:34 AM
Answered by Expert

When the plunger of the syringe is withdrawn, the pressure inside the syringe decreases and the blood inside the body (which is at high pressure) moves into the syringe. Thus, syringes are used to take blood for blood tests.

Answered by Expert 19th August 2014, 11:34 AM
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