Thank you good work I would like to emphasis that in COPD the only used are venturi mask of 24 to 28 % to avoid loss of hypoxic drive and more hypercapnea that might result in coma
If copd patient who is a co2 retainer only requiring 1 to 2 L O2 via nasal cannula to maintain his saturation, he does not need Venturi right? Venturi only used with facemask when patient require more than 2L O2, is this right?
