The part of the brain responsible for muscle coordination, balance, posture, and muscle tone is the ____

You have just assisted in the delivery of a 34-week-gestation infant in the office of a methadone clinic. After 30 seconds of drying and stimulation, the infant remains limp and cyanotic, with a pulse of 50. Which of the following is the most appropriate action to take at this point?

A) Begin CPR at a rate of 3 compressions to 1 ventilation. B) Intubate the trachea, ventilate, reassess, and prepare to transport to a NICU. C) Begin bag-valve-mask ventilations and establish intravenous access. D) Continue to warm and dry the infant for an additional 30 seconds, while preparing to intubate.

During normal nerve function, which ion is displaced when a membrane is stimulated?

A) Sodium B) Calcium C) Potassium D) Neutral salt