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.
Finally, be sure to invite the guest to the dinner afterward and mention the name of the venue and location so he or she can plan ahead. When to Send Invitations. Rehearsal dinner invitations should be sent by the host right after the wedding invitations are mailed (approximately four weeks before the rehearsal dinner).