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.
A: The answer to the question on how to become a nurse practitioner in 2 years needs explanation. Students can complete their certification in Nursing in 2 years from a community college and 4 years from a state school.: In order to become a nurse practitioner, one must first acquire a nursing degree. You can opt for ADN, LPN or bachelor's degree in nursing (BSN) from a state approved school. After completing a nursing program, candidates must take the licensing examination in their state.