<prompt> Fixed oxygen delivery device is?Venturi maskNasal cannulaNasal maskNon breathing mask  <response>: ANSWER: A Venturi maskREF: Stakeys essentials of anesthesia 2nded p. 76-77Ventury mask is a high flow fixed performance oxygen delivery deviceO2 DELIVERY SYSTEMS:High flowfixed performance systemsLow flowvariable performance systemsProvides complete source of inspired 02,Provides fraction of inspired O2Oxygen given at predetermined rate and doesnt depend upon patients respirationOnly used when fixed oxygen delivery is not required, oxygen delivery depends upon supply rate , tightness of mask on face , pattern of ventilationVenture maskLow flow devices areNasal cannulaOxygen tentsNon breathing masksPolymasksRebreathing masksMaximum Oxygen delivered- 60Maximum oxygen delivered - 44 