1. Sporadic Spikes in Blood Pressure Hike Chances of Hypertension - US News and World Report
People who have them in doctor's office, for example, at risk, study shows

2. Blood pressure  (Trust Mark: Doctor-Reviewed)
Blood pressure is a measurement of the force applied to the walls of the arteries as the heart pumps blood through the body. The pressure is determined by the force and amount of blood pumped, and the size and flexibility of the arteries. Blood pr...• Reviewer: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.