Adding to LMG!'s reply, you should read through the Gemsas guide. Several grad-entry schools use your most recent 3 years of tertiary studies for the GPA i.e. if you complete one year of a new degree it'll be this plus the final two years of the completed degree.If after I graduate from a bachelor's degree, I start another degree, will I still be able to use the GPA from my completed degree
Since you mentioned "applying again as an undergrad student" did you mean to the undergrad med schools for non-standards? (since undergrad students can't apply to grad schools until final year). In this case WSU will use the new GPA alone if it's 1 semester or more, JMP 1 year or more, UNSW apparently combines old & new together.