Pulse oximeter measurements below what percent are considered inaccurate and unreliable?

pH values range from:

A) 0 to 10. B) 1 to 10. C) 0 to 14. D) 1 to 14.

Atrovent, if prescribed to the patient, is indicated for which one of the following conditions?

A) Chest discomfort B) Nausea or vomiting C) Headache D) Difficulty breathing