3. Which is important to remember when measuring orthostatic vital signs?
A. Patients taking beta blockers may not have significant changes in heart rate.
B. A systolic blood pressure increase of 30 mm Hg or greater is indicative of a positive finding.
C. The arm should rest at the patient's side when sitting and standing values are being measured.
D. If a patient cannot stand, readings taken in the high-Fowler position will be equally accurate.