PC707 Module 4 Cardiac Exam Questions and Answers

PC707 Module 4 Cardiac Exam Questions and Answers What is BP? - Answer ️️ -Blood Pressure (BP) = Peripheral Vascular Resistance (PVR) x Cardiac Output (CO). Hypertension (HTN) Impact: - Answer ️️ -▪ Most preventable contributors to disease & death in the United States. ▪ If not detected early & treated appropriately, may lead to myocardial infarction (MI), stroke, & renal failure--& can cause target organ damage to the eyes, kidneys, ♥ & brain. ▪ It is the most common condition seen in primary care, so becoming familiar with its management is vital What affects BP? - Answer ️️ -Any ∆es in PVR or CO result in ∆es in blood pressure (either an increase or decrease). Na+ (Sodium) Factors influencing BP - Answer ️️ -Vascular volume is increased when water retention increases (increasing CO). Angiotensin I to Angiotensin II Factors influencing BP - Answer ️️ -Causes vasoconstriction (increasing PVR) Sympathetic System Stimulation Factors influencing BP - Answer ️️ -If epinephrine secretion occurs, tachycardia & vasoconstriction occur (increasing PVR). Vasodilation (Alpha-Blockers, Beta-Blockers, Calcium-Channel Blockers) - Answer ️️ - Decreases resistance (decreasing PVR) Factors influencing BP Severe Hemorrhage Factors influencing BP - Answer ️️ -Less blood volume (decreasing CO) The majority of hypertension in the United States today is - Answer ️️ -essential hypertension The cause of essential hypertension is - Answer ️️ -unknown; therefore, pharmacologic treatments are directed towards the physiologic control mechanisms that regulate blood pressure. Correct Blood Pressure Measurement - Answer ️️ -Have pt: ▪ Empty bladder ▪ Sit for 5 minutes with back support & legs resting on ground uncrossed. ▪ Rest arm on table @ ♥-level. ▪ Use a sphygmomanometer/stethoscope or automated electronic device (preferred) with the correct size arm cuff