The nurse is assisting with a lumbar puncture on a client. During the procedure, a code is called for another client on the unit who is experiencing respiratory arrest. Which action should the nurse take?

A. Close the room door: Closing the door may help maintain privacy for the client undergoing a lumbar puncture, but it does not address the immediate priority of patient safety and sterile technique during an invasive procedure. Privacy measures alone are insufficient in guiding nursing action in this scenario. B. Finish the procedure: A lumbar puncture is an invasive procedure that requires sterile technique and careful attention to prevent complications such as infection, bleeding, or spinal cord injury. Abandoning the procedure mid-way could harm the client receiving the lumbar puncture. Therefore, the nurse should complete the procedure safely before assisting elsewhere. C. Call for an assistant: Calling for assistance is appropriate in many situations; however, during a lumbar puncture, the nurse’s primary responsibility is maintaining a sterile field and supporting the procedure. Calling an assistant does not immediately resolve the dilemma of leaving a sterile procedure in progress. D. Respond to the code: Responding immediately to another client in respiratory arrest is important for that client’s survival, but abandoning a sterile, high-risk procedure mid-way could result in serious harm, such as infection or neurologic injury, to the client undergoing the lumbar puncture. The safer approach is to complete the procedure and then respond to the code.