Hi everyone,
We have had some reports from our Cardio-respiratory team (outpatients department) of higher than expected pH results (>7.45).
The Clinical presentation for someone with high pH would be hyperventilation, vomiting or aspirin poisoning……none of these patients presented like this. They all came in to the department as out patients and all seemed fairly well and stable.
On comparing one patients results that were pre-covid to now, the pH is very different, with relatively no change in pC02 and pO2?
We are obviously investigating this with our blood gas machine supplier, but I was wondering if anyone was experiencing the same? Can anyone identify any pre-analytical causes for a high pH? These samples are taken from the ear lope and the area is warmed with a agent (this is not a change in practice). The only change to pre-covid and now is obviously wearing a mask to the appointment. Would mask wearing cause this?
I would appreciate any advice or suggestions,
Kind regards
Nicola Davey
POCT Co-ordinator
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