NUR 4110 (NUR4110)

Chapter 25 Assessment of Cardiovascular Function Cardiac Action Potential Depolarization: electrical activation of cell caused by influx of sodium into cell while potassium exits cell ­ This exchange of ions creates a positively charged intracellular space and a negatively charged extracellular space. Repolarization: return of cell to resting state caused by re-entry of potassium into cell while sodium exits Refractory Periods Effective (absolute) refractory period: phase in which cell...

NUR 4110 - Med Surg II - Exam 2. Study Guide.

NUR 4110 - Med Surg II - Exam 2 Study Guide/NUR 4110 - Med Surg II - Exam 2 Study Guide. Chapter 28 Management of Patients With Structural, Infectious, and Inflammatory Cardiac Disorders Valvular Disorders o Regurgitation: The valve does not close properly, and blood backflows through the valve Backward flow of blood through a heart valve o Stenosis: The valve does not open completely, and blood flow through the valve is reduced Narrowing or obstruction of a cardiac valve’s o...