Final answer:
The CPCT should report the blood pressure increase of 10 mm Hg first, as it could indicate a potential adverse reaction or complication during the blood transfusion.
Step-by-step explanation:
The CPCT should report the blood pressure increase of 10 mm Hg first. This is because a sudden increase in blood pressure during a blood transfusion could indicate a potential adverse reaction or complication. The normal blood pressure range is between 90/60 and 120/80 mm Hg, so an increase of 10 mm Hg may be significant and require immediate attention from a healthcare professional.