Which finding should a nurse report to the primary healthcare provider for a client receiving IV normal saline for dehydration?

In this scenario, the most critical finding to report to the primary healthcare provider is the client's anxiety. While all the listed options may warrant attention, anxiety can be indicative of an underlying physiological issue, such as fluid overload, electrolyte imbalances, or an exacerbation of the client’s dehydration, which may require prompt medical evaluation and intervention.

Anxiety in a client receiving IV fluids can signal distress that might not be immediately observable through vital signs or lab results. It's essential for the healthcare provider to assess the client further, as anxiety can escalate quickly and affect treatment outcomes. Addressing the underlying cause of the anxiety may lead to a more effective management plan and ensure the client’s safety.

Monitoring physiological parameters like blood pressure or urinary output is also crucial, but in the context of potential complications related to IV fluid administration, the psychological and emotional state of the client can provide significant insights into their overall condition and may require immediate attention.