3.1 Pressure in a Syringe

This video supplements content in the text, Chemistry and Physics for Nurse Anesthesia, Second Edition, by David Shubert and John Leyba.
About the Book:
Nurse anesthesia students will welcome the second edition of this text designed for the combined course in chemistry and physics that is required for this program. It is written in a clear, conversational style to counteract the trepidation that often accompanies the study of chemistry and physics, and includes only those core scientific concepts that relate to clinical anesthesia application. Numerous illustrations demonstrate how the scientific concepts relate directly to their clinical application in anesthesia, and plentiful case studies exemplify and reinforce basic concepts. Review question at the end of each chapter facilitate self-assessment.
For more information, visit www.springerpub.com/product/97....

[@coldmagnet]

Fantastic video.

[@hotlasagna1]

Nice tutorial

[@bellastossom5577]

How much water was in both of the syringes? Was it full in each (ie. 10ml and 30ml)?

[@viktorsamuelsson7764]

Thanks for the wonderful video. I have a question regarding subcuteneus vein port (port-a-cath). It is stated that when you give medication I.V you are not recommended to use a syringe with a smaller diameter due to the high pressure you can achive and possibly destroy the Port-a-cath.
The newer models of porta-a-cath can withstand a pressure of 325 Psi. How much force must i apply on the syringe to achive 325 psi? The 1ml syringe has a plunger with a diameter of 3 mm and the 10 ml and 20 ml looks like the ones you already have.
Thanks a lot!
// a confused nurse from sweden

[@ajnansiddiqui6039]

Nyc video :)

[@dogbolterdave]

What about the pressure through a needle, into a muscle? Will that be greater pressure to the muscle from a smaller syringe?

[@davidshubert2497]

Yes, when the fluid is flowing, the pressure in the needle is correspondingly greater. In this demo, we have a static system, so the pressure is the same throughout the entire system (Pascal's principle). BTW, sorry about having the conversion factor for cm H20 to mmHg upside down :(