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.
Only registered nurses can enter nurse practitioner programs. You can become an RN by completing a diploma program, which is a two-or three-year program from a hospital school of nursing, or by completing an associate degree program, which is a two-year program offered by many community colleges and some universities. masterâs in nursing science usually takes four years for a full-time student. A doctoral program can take an additional three to four years. Many RNs who work full-time can only attend classes part-time, which may lengthen the time to an NP degree.