1. A nurse is caring for a patient who has a chest tube connected to a water-seal drainage system. The nurse notices that there is continuous bubbling in the water-seal chamber. What should the nurse do next? a) Clamp the chest tube near the insertion site b) Check the system for air leaks c) Increase the suction pressure d) Document the finding as normal *Answer: b) Check the system for air leaks* Rationale: Continuous bubbling in the water-seal chamber indicates an air leak in the system, which can compromise the drainage and lung reexpansion. The nurse should check the system for air leaks and seal them if possible. Clamping the chest tube can cause tension pneumothorax, increasing the suction pressure can damage the lung tissue, and documenting the finding as normal can delay appropriate intervention. 2. A nurse is preparing to administer an intramuscular injection to a patient who has a history of anaphylaxis. The nurse has drawn up 0.3 mL of epinephrine from a 1 mg/mL vial. What is the concentration of epinephrine in the syringe? a) 0.03 mg b) 0.3 mg c) 3 mg d) 30 mg *Answer: b) 0.3 mg* Rationale: The concentration of epinephrine in the syringe is calculated