For a client diagnosed with lung cancer whose lab results are within normal limits, what action should the nurse take?

For a client diagnosed with lung cancer whose lab results are within normal limits, continuing to monitor the client is the most appropriate action. This approach is vital because stable lab results indicate that there aren't any immediate complications or significant changes in the client's condition that require urgent intervention.

Monitoring allows the nurse to observe for any potential changes in the client’s health status and to continue assessing symptoms associated with lung cancer or its treatment. Keeping an eye on the client's overall condition can help in timely identification of any issues that may arise, even when lab results show normal limits.

In contrast, placing the client in reverse isolation is typically indicated for clients with compromised immune systems, which may not be necessary if lab results are normal. Notifying the health care provider might be warranted if there were concerning lab results or changes in the client's condition, but normal results do not necessitate that immediate action. Lastly, ensuring no flowers are taken into the room is relevant for clients with neutropenia or specific allergies, but again, this does not directly apply if lab results are within normal limits. Thus, the focus on vigilant monitoring is justified in this scenario.