What is crucial during the assessment of a syncope patient regarding vital signs?

Obtaining orthostatic vital signs is essential during the assessment of a patient who has experienced syncope because it helps identify any significant changes in blood pressure and heart rate when the patient changes position. Syncope may be caused by various factors, including a transient drop in blood pressure due to dehydration, blood loss, or autonomic dysfunction. Measuring blood pressure and heart rate in both supine and standing positions can reveal orthostatic hypotension, which is a reduction in blood pressure when standing that can contribute to the patient's syncope. This information is vital for understanding the underlying cause and guiding further management and treatment options for the patient.