A nurse is educating a student on the unexpected findings of neonates during a physical exam. What would the nurse include in the education? Select all that apply.

An expiratory grunt.

Clenched fists.

Apneic episodes that last longer than 20 seconds.

Heart murmur over the base of the heart.

Heart rate of 100 beats/min when sleeping.

Persistent heart rate of 180 beats/min or more.