If you want to work as a biomedical scientist these people
http://www.ibms.org/ will advise you on the suitability of your degree.
http://www.ibms.org/index.cfm?method=education_and_careers.registration is a
good place to start.
You may or may not have to do further academic top-ups, but (I could be
wrong here) I'm pretty sure you'll have to complete a complete a certificate
of Competence Registration Portfolio (for which I am an assessor !) which
takes a *minimum* of three months but is more likely to take a year.

HTH