What is the appropriate nursing action for a client who reports dizziness upon changing positions?

Assessing the client's blood pressure and heart rate is the appropriate nursing action for a client who reports dizziness upon changing positions. This assessment helps to determine if the dizziness may be due to orthostatic hypotension, a condition where blood pressure drops significantly when an individual stands up or changes positions. By checking these vital signs, the nurse can gather critical information that may indicate underlying cardiovascular issues or other medical conditions contributing to the client's symptoms.

This step is essential before taking further actions, as it informs the care plan and allows for immediate interventions if the readings indicate a concerning trend. Monitoring vital signs provides a clear picture of the client’s hemodynamic status and guides subsequent nursing interventions or the need for further evaluation.