CMSRN Medical-Surgical Nursing

Answer - B - Position the client who is conscious to sit up in a supported, forward-leaning position (high-Fowler’s, orthopneic) to improve ventilation and oxygenation. A calm and reassuring approach will decrease hyperactivity of the client and oxygen need. Aminophylline is used to combat bronchospasm, but it is not independent nursing action. Low-flow oxygen (2 L) is also administered to the client in respiratory failure; however, nasal cannulas do not provide predictable O₂ concentrations. A Venturi mask would be more appropriate. A higher concentration of O₂ (60%) may lead to respiratory depression unless the client is maintained on controlled mechanical ventilation.