as per the haad website http://www.haad.ae/HAAD/LinkClick.as...8%3d&tabid=927
on page 27, you can apply for HAAD RN provided you graduated from 3 years study duration in “Nursing” from accredited program, in which you say you have 3 1/2 years.
If you pass the exam -it has no expiry. You can apply for dataflow if you have a work experience in Medical-Surgical for at least 2years. If you have obtained the dataflow, then you're on the final stage of license issuance provided
you have already a sponsoring facility.