NHRA Prometric Online Question Bank for Endocrinology. Prometric Gulf is a leading online platform for Prometric Exam preparation, offering updated MCQs, detailed explanations, and real exam–style mock tests for DHA, MOH, HAAD, SMLE, NHRA, QCHP, OMSB, and KMLE exams across Gulf countries. https://prometricgulf.com/prometric/mcq-packages/endocrinology