This article covers everything you need to know about the renewal of professional registration of the DHA license for nurses. You can browse through the following segments to understand the relevance of the DHA license for nurses plus its benefits & validity.Dha exam. It is not uncommon for medical professionals to obtain licenses to practice abroad. The GCC area is no stranger to holding multiple premium-level license exams for healthcare practitioners. One of the top significant exams in this category is the HAAD exam.