The fire extinguisher is not just for show
I will also reiterate, that not getting a BGL results in a QA flag which may or may not result in issues with ones employer.Do not forget that in this particular instance, the OP gets a blood glucose measurement on all patient contacts as this is part of their standard vital signs gathering. This is why the OP provided a blood glucose level to us in the first place.
At a former job, we were supposed to get a BGL on everyone. So if someone gets shot 3 times, and we took him to the hospital without a BGL, the on duty supervisor would provide us with a QA flag, which would require the author to submit a justification or reason why BGL was not obtained, all of whom are reviewed by our clinical coordinator. Does anyone really think the BGL was a factor in why this person needed an ambulance? no, but it's just easier to prevent the QA flag by getting a BGL on every patient.