The front page of the Oasys graph does not tally up with the patient's readings
Hi there,
I process patient's readings onto Oasys and the readings do not appear to be accurate on the graph that is produced on Oasys, this is causing problems when the Doctor comes to review the case, please help.
Kind regards,
Rachel
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There are two possible explanations. The most likely is that Oasys starts a "day" with the first reading at work and finishes on the last reading before work on the next day (day interpretation). Clearly a reading taken before starting work cannot be influenced by exposures which occur later. There are quite complicated algorhthms which are used when changing shifts or during night work, hopefully somebody else will explain this. The effect for night shifts is to include the whole of the shift in one "day" rather than split it between two.
Another possibility is that you have selected a non-linear meter. If so the program with linearise the readings based on the known non-linearity of some older peak flow meters.
I hope a more technical response will follow including details of how to adjust the output (not generally recommended)
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The previous answer is correct. More information about the "Pseudo Day Interpreter" is available from the links below. It is also possible to turn this off and see the data as entered, without "Pseudo Day Interpretation". This is called "Solar Interpretation" by Oasys. See "Choosing the Interpretation" from the links below on how to do this.
The other point mentioned was that Oasys can correct readings taken from the old style "Mini-Wright non linear meter". This is a good thing and makes the results more representative of the actual peak flow that the patient achieved. If you are not using the "Mini-Wright non linear meter" then make sure that you have the correct meter type specified in the "Patient Demographics" window (link below). If you are using the "Mini-Wright non linear meter" but still want to see the values without correction (not recommended) then select "Other Non Linear" as the meter type in the "Patient Demographics" window.
If neither of these two things is the problem then please let us know.
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