Long time reader, occasional contributor...
If the device is a SMBG meter for home use (Self Monitoring Blood Glucose = patient use, self test), then the primary standard that applies is ISO15197
This specifies both the performance testing, labeling, IFU and clinical requirements for SMBG's. It also calls out IEC61010-1 and -2-101 for safety and IEC61326 (and the -101) for EMC.
Yes even though the test strip contacts the patient...
I agree that SMBG's are one of those "borderline" applications, but given the size of the industry and user base (and the overall well being that comes from having SMBG's), I'm not surprised they have their own standards. Skeptics may claim industry pressure, I can't comment on that
By way of reference I have been involved in the past in product engineering for SMBG's and bringing one major product line in this space to market.