U.S. doctors online nowAsk doctors free
A female asked:

Can air in the syringe get pushed back into vein during blood draw when the let go of syringe plunger?

1 doctor answer3 doctors weighed in
Dr. Ed Friedlander
Pathology 46 years experience
Not a problem: Tiny amounts of air are not dangerous. And with today's systems this should not happen.
Created for people with ongoing healthcare needs but benefits everyone.
Last updated Nov 28, 2017


Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.