A 17-year-old student with a known history of bronchial asthma develops acute wheezing and breathlessness during school hours. The school nurse administers 0.2 mL of 1:1000 epinephrine subcutaneously as prescribed. Which finding best indicates that the intervention has been effective?

How will a nurse teach breathing exercises to a patient with chronic bronchitis?

A mechanically ventilated patient shows a sudden drop in minute volume and a rise in peak inspiratory pressure. What is the most appropriate immediate next step?

A nurse is providing manual ventilation with a bag-valve-mask (BVM). Which ventilation rate is appropriate for an apneic adult patient without an advanced airway?