In the simplest of terms, a drug's volume of distribution is that volume of bodily fluid into which a drug dose is dissolved. Therefore, if we know the dose that was given, and we can measure the serum level (concentration), then we can calculate a volume: Volume of distribution = Dose / drug concentration.
As soon as you can make the reservation, do it, but the general consensus is at least three to six months in advance of the date. By three months out, couples have a good idea how many guests will be attending and they can plan a menu that doesnât conflict with their wedding day.
I have never heard of a rehearsal dinner before the rehearsal. As far as every one I've ever been to dinner has always been after the rehearsal itself. Usually the rehearsals last 30-60 minutes depending on what needs to be covered. As far as how long dinner goes, the sky's the limit on that one! Hope that helps.