Final answer:
The best approach is to recommend a pregnancy test after acknowledging the client's distress. This allows for a factual basis on which further support and planning can be provided, while also validating the client's feelings and current state.
Step-by-step explanation:
The most appropriate nursing intervention in this scenario would be to recommend a pregnancy test after acknowledging the client's distress. This intervention is both practical and sensitive to the client's emotional state. By confirming whether or not the client is pregnant, she can then be better guided towards the necessary support and resources. It is critical to manage the situation with empathy and understanding, ensuring that the anxious young adult feels heard and supported in what may be a challenging period in her life. While exploring feelings and discussing potential plans and parental reactions are important, the immediate concern revolves around establishing whether the client is pregnant.