Knowles estimated an earlier blood-alcohol range using a later hospital serum result.
What the record shows
The hospital serum ethanol result was reported as 93 mg/dL. Knowles converted the serum result and calculated an estimated blood-alcohol range of approximately 0.14-0.28 percent at 12:45 a.m.
Her testimony distinguished a serum test from whole-blood concentration and described assumed elimination rates. Cross-examination addressed her reliance on the hospital's number.
Limits and disputed context
This was not a sample drawn at Fairview. The estimate depends on conversion and elimination assumptions and does not diagnose a blackout or establish a collision.
S26: Knowles: serum conversion and retrospective alcohol estimate
Hannah Knowles testimony: serum conversion and extrapolation
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