On which principle does a thermal imaging camera operate?

Negotiations to settle differences between legislative bodies are termed a "conference"

Indicate whether the statement is true or false

To ensure you deliver the highest concentration of oxygen with a nonrebreathing mask, you should:

A: set the flow rate to at least 10 to 12 L/min. B: cover the flapper valves on the oxygen mask. C: securely fasten the mask to the patient's face. D: make sure that the reservoir bag is preinflated.