information from the article "NYSORA Reflections: When BP hits the Floor!": The article deals with a common clinical situation where a patient's blood pressure drops sharply during surgery in the beach chair position. This decrease is due to venous pooling, reduced preload, vasodilation, and impaired autonomic response in elderly patients. The author emphasizes the importance of quick decision-making and anticipation in such situations. He recommends an infusion of norepinephrine to stabilize blood pressure. It points out the benefits of using the NYSORA Anesthesia Assistant App for fast, real-time drug dosage calculation. The application allows you to enter clinical data and immediately obtain information about the dose of the drug per kilogram of the patient's weight. The author emphasizes that the use of such tools reduces cognitive load and can improve patient safety.