Ok - first, please find someone with clinical experience. It is very possible to have multiple vital entries for one encounter depending upon several factors, such as the condition of the patient, if a med was given, a before and after reading - any of these reasons or more.
Also, the dates are right at the head the component in the first table - that's the encounter date. Once again, I would definitely suggest finding someone who can help navigate the complex world of medical care, because it certainly becomes far more complicated beyond vitals.