quality control is important part of making sure your system is functioning appropriately in this video we will show you how to perform a quality-control test using an isothermal bottle to measure thoracic gas volume to connect the isothermal bottle to the platen aleef first remove the screw on the bulkhead cover and open the cover next disconnect the umbilical connector from the purple Gore fitting which is the mouth in milk net port and attach the tube from the isothermal bottle to this port testing is performed with somebody sitting inside the Platinum elite and brief suite add a new patient for the test subject and make sure to check the B TPS correction off checkbox so that testing is performed in a syringe mode when entering the subjects height and weight add 12 pounds the subjects weight to account for a cabin volume displaced by the bottle click on the fluff tab at the bottom of the screen to go to the Plath testing screen place the subject in the box with the isothermal bottle and seal the door wait approximately 30 seconds to allow for collaboration of the box you may want to use a book to stabilize the bottle on your lap and to prevent the bottle from warming up click the TGV Start button and have this subject perform tidal breathing with the prevent flow sensor the flow sensor does not have to be attached to the patient head of the box after for stable tidal breaths press the spacebar to close the shutter when the shutter closes the subject pumps a syringe on the isothermal bottle at a rate of once per second know when the shutter closes the subject in the Box must hold their breath why the shutters closed when the effort is complete simply press the spacebar again to repeat the procedure make sure the subject pumps a syringe using wrist action rather than moving their entire on excessive movement can cause artifact which will change the measured values after 4 to 5 efforts testing is complete and results reviewed draw each of the efforts and verify that the angles of the efforts are correct if the angle is not correct adjust the line of best fit as you would with any patient test using the entire tracing when all angles have been verified select several acceptable efforts to average the average measured TGV values should be compared with the volume of the isothermal bottle the average of the recovered values should be within plus or minus 5% of the is shown on the label of the isothermal bottle and that's it if the measured TGV values are not within range or if you have any questions please contact technical support act 1-800 three three three four one three seven