At what approximate rate do the VRG's expiratory neurons fire per minute in a healthy adult at rest?

When preparing sodium nitroprusside for use in hypertensive emergencies, it is important to remember that:

a. Once mixed, keep wrapped in an opaque wrapper to prevent deactivation b. Lactated Ringer's solution is the preferred solution for mixing c. Sodium nitroprusside is not indicated for hypertensive emergencies d. Give as a bolus over 20 minutes and then utilize other antihypertensive agents to achieve desired results

SBS has the lowest incidence when ventilation is managed through:

a. natural ventilation b. mechanical ventilation c. heating, ventilation and air conditioning systems (HVAC) d. b and c