What This Document Is
This document provides foundational notes for Comprehensive Nursing Care I (NUR 203) at Nassau Community College, focusing on cardiac physiology, common cardiovascular diseases – specifically Coronary Artery Disease (CAD) and Angina – and related medical terminology. It’s a high-level overview designed to establish a base understanding of how the cardiovascular system functions and what happens when that function is compromised.
Why This Document Matters
These notes are essential for nursing students preparing to understand and manage patients with cardiac conditions. They are most useful during initial coursework, when building a core understanding of cardiovascular health, and as a quick reference point when encountering these topics in clinical practice. The material lays the groundwork for more advanced study of cardiac medications and interventions.
Common Limitations or Challenges
This document is a *preview* of a larger set of notes. It provides definitions and foundational concepts but does *not* delve into detailed treatment plans, medication administration, or complex case studies. It’s intended to orient you to the subject matter, not to provide comprehensive clinical guidance. You will still need to engage with the full course materials and clinical experiences to develop proficiency in cardiac nursing care.
What This Document Provides
This preview includes:
* An overview of systemic transport and cardiac function, including the heart’s oxygen requirements and perfusion process.
* A review of blood flow through the heart, identifying key valves and vessels.
* Definitions of critical terms like hypoxemia, acidosis, cardiac output, stroke volume, preload, and afterload.
* Factors that can increase or decrease preload.
* Explanations of vasoconstriction and vasodilation and their influence on blood pressure.
* An introduction to arteriosclerosis and atherosclerosis, with a focus on the development of plaque and its consequences.
* Information on indicators of atherosclerosis, such as claudication.
* Normal ranges for hemoglobin (Hgb), hematocrit (HCT), and HbA1c.
* An overview of cholesterol levels, including HDL and LDL, and their impact on cardiovascular health.
This preview *does not* include detailed information on specific cardiac medications, advanced diagnostic procedures, or comprehensive management strategies for CAD or angina. These topics are covered in subsequent parts of the course.
