Closed reduction with percutaneous internal fixation left femoral neck fracture

All of the following are desirable characteristics of safety devices EXCEPT what?

a. Jet injection b. Cannot be deactivated c. Easy to use d. Does not work passively

Which acid base abnormality would likely occur in a patient with acute ventilatory failure who has a complete cardiac and respiratory arrest?

a. combined metabolic and respiratory alkalosis b. respiratory acidosis c. metabolic acidosis d. combined metabolic and respiratory acidosis