External iSTAT Liquid QC frequency

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Hi everyone,

I wanted know how everyone's liquid QC is set up for their iSTAT. The cartridges we use here are CG4, CG8, & ACT - we QC every shipment, every lot. Then every lot monthly.
I checked the IFU's and confirmed with our Abbott that there is nothing from them that says we have to QC monthly after our initial QC.
I would like to transition to running liquid controls on each cartridge type, but not every lot we have in the hospital.

Or is everyone here still running liquid QC every month, on every lot when there is nothing from manufacture? (I found an old discussion from 2021)

Thanks,
Andy

1 Reply

Hello Andy, 
You can check with you lab or hospital accreditation requirements when manufacture does not have define criteria for liquid QC.
We are accredited by CAP and we follow below requirements for iSTAT liquid quality control, we perform QC for any new shipment, new lot and Monthly as per our IQCP.
  • COM.30450 New Reagent Lot and Shipment Confirmation of Acceptability - Nonwaived Tests: New reagent lots and shipments are checked against previous reagent lots or with suitable reference material before or concurrently with being placed in service.
We do compare old lot and new lot for it's allowable error.
  • Regarding the iSTAT liquid QC, as per CAP standard "POC.07300 Daily QC - Nonwaived Tests":
    • liquid QC is required to get performed on each day when patient testing is performed unless laboratory have IQCP plan approved by the laboratory director defining the control process, including the frequency and use of external and internal controls.
Hope this helps!!


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Andy Y
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