The stapedius muscle exerts a restraining force on the ____________________

While managing a patient with acute shortness of breath, you prepare and apply a nonrebreathing mask set at 12 L/min. The patient pulls the mask away from his face, stating that it is smothering him. You should next

A. increase the oxygen flow and reapply the mask B. securely tape the oxygen mask to the patient's face C. reassure the patient and apply a nasal cannula instead D. inform the patient that refusing oxygen might result in his death

The item indicated in the illustration below is referred to as the _____ and indicates the _____.

a. Vertical bars, radioactive levels. b. DOT number, hazard class. c. Transport index, maximum radiation levels. d. Activity, number of radioactive atoms.