Units for Tidal Volume, Minute Volume and Fresh Gas Flow! Exam on Tuesday!

Re: Units for Tidal Volume, Minute Volume and Fresh Gas Flow! Exam on Tuesday!

jenlecornu — Sun, 10 Apr 2011 20:50:14 GMT

Finally one of my course mates got back to me! She said the same thing as you :) Feel much better now that i know! Thank you xx

Re: Units for Tidal Volume, Minute Volume and Fresh Gas Flow! Exam on Tuesday!

jodieandrews — Sun, 10 Apr 2011 20:05:23 GMT

I'm just covering this at college at the moment and i think its really important to write down each stage and the units during the OSCE tasks (or so we have been told). The tidal volume is in mls, the minute volume is mls/min, and i'm pretty sure the final fresh gas flow is in litres, but if you work out mls, write it down and then convert to litres you have covered all bases! Please let me know if this is incorrect! Good luck !!

Re: Units for Tidal Volume, Minute Volume and Fresh Gas Flow! Exam on Tuesday!

jenlecornu — Sun, 10 Apr 2011 18:34:40 GMT

Yeah my calculations are fine, it was just the units

so say for example, cat weighed 4kg, bpm 20, her tidal volume is 10ml/kg and CF is 2.5 (Ayres t-piece)

TIdal volume = 4 x 10 = 40mls

Minute volume= 40 x 20 = 800 mls

Fresh gas flow = 800 x 2.5 = 2000mls

Can i just get away with putting it in mls all the time, i don't need like mls/kg/hr???

Re: Units for Tidal Volume, Minute Volume and Fresh Gas Flow! Exam on Tuesday!

Eira Davies — Sun, 10 Apr 2011 17:45:34 GMT

Iv been taught that:

Tidal volume = 15ml/kg <10 or 10ml/Kg >10Kg

Minute volume = tidal volume x breaths per minute

Fresh gas flow = minute volume x circuit factor

and i dont think it matters if you put the answer in liters on ml, as long as its correct :)

Hope ive helped xx