Q. Can one drink a reviis of grape juice for a bemakom seuda need on Shabbos or only wine? (Consumption of an extra reviis wine is considered in Halacha as having eaten a meal).
A. See question above, where we asserted that grape juice when in need, has practically all the attributes of wine.
On question 2617 regarding a frum physician working in a hospital during Seder night that will only be able to come home after 11.00 PM, we wrote: Horav Shlomo Miller’s Shlit’a opinion is that you should take with you to the hospital a bottle of grape juice and at the proper time recite kiddush of Yom Tov and drink a second extra cup of juice, so it will be considered bemakom seuda or in the place of eating a meal. You should have in mind that this cup will be the first of the four cups of wine that one has to drink during the seder night. When you go home, you may join your family and drink the remaining three cups.
Rabbi A. Bartfeld as advised by Horav Shlomo Miller and Horav Aharon Miller Shlit’a