Cardiopulmonary Physiology

How it works

Highlighted claims

• Arrhythmias and atherosclerosis can produce heartbeats that do not translate into effective peripheral perfusion, making pulse rate a more clinically accurate measure than heart rate. — The use of the raw pulse/breathing rate ratio (PBR) as a predictor of mortality and criticality in the emergency department: a retrospective study
• The U-shaped PBR risk pattern is biologically consistent with homeostatic equilibrium, where excessive deviation in either direction disrupts balance and causes organ damage. — The use of the raw pulse/breathing rate ratio (PBR) as a predictor of mortality and criticality in the emergency department: a retrospective study
• Outliers in PBR, whether driven by a disproportionately fast pulse or disproportionately fast breathing, signal system-level dysregulation. — The use of the raw pulse/breathing rate ratio (PBR) as a predictor of mortality and criticality in the emergency department: a retrospective study
• Both very high and very low individual values of pulse rate and breathing rate are associated with increased mortality, following U-shaped distributions. — The use of the raw pulse/breathing rate ratio (PBR) as a predictor of mortality and criticality in the emergency department: a retrospective study