1 Infants: Lethargy, weakness, poor feeding, constipation, poor head control, poor gag and sucking reflex.  Children and adults: Double vision, blurred vision, drooping eyelids, slurred speech, difficulty swallowing, dry mouth and muscle weakness.
After completing an ADN degree one can take the NCLEX-RN licensure exam in order to become a registered nurse. An associate's degree in nursing can take two years and at times also three years to compete.
Quick Answer. It takes two years to get an associate degree for students taking the recommended full-time course load. Associate degree programs at U.S. colleges require a minimum of 60 credits, though additional credits may be required depending on the program.