Local anesthetic molecules have a greater affinity for protein receptor sites within the nerve membrane compared to calcium ions; therefore, they displace the calcium ion and block impulse transmission

What condition can be caused by a tumor on the spinal cord?

A) Urinary incontinence B) Urinary retention C) Urinary tract infection D) Urinary overflow

The actual percentage of oxygen that is being delivered to a patient is called the:

A) oxygen concentration. B) oxygen administration. C) supplemental oxygen. D) oxygen supply.