The doctor–patient relationship is the keystone of medical practice but is not necessarily contractual in nature

You are assigned to a busy fire station. While you look over your equipment, you remove the cot and find that it is very hard to roll and use. It is 0700 hours on a Monday morning, and rush hour is just starting. Which of the following is the most prudent action to take?

A) Call your supervisor and wait. B) Document it and hope someone will fix it. C) Find an appropriate lubricant and take the few moments to solve the problem. D) Put the unit out of service and go to the shop.

Absorbance or fluorescent sensors are used with which of the following?

a. Capnography c. In vitro blood gas analysis b. Photoplethysmog-raphy d. In vivo blood gas analysis