PAT 20A/B Study Guide - Final Guide: Vasoactivity, Lipopolysaccharide, Stridor

• School: Ryerson University
• Department: Pathotherapeutics
• Course: PAT 20A/B
• Professor: Audrey Kenmir

Document Summary

Systolic dysfunction: the heart"s inability to pump the blood forward. Cardiogenic shock: occurs when either systolic or diastolic dysfunction of the pumping action of the heart results in compromised cardiac output (co). Pathophysiology: increase in systemic vascular resistance (svr), increases the workload of the heart, increasing the myocardial oxygen consumption, causing heart"s inability to pump blood forward, resulting in low. Co (<4 l/min) and low cardiac index (<2. 1. Diastolic dysfunction: impairment of the ability of the right or left ventricle to fill during diastole. Laboratory studies (e. g. , cardiac enzymes, troponin levels), electrocardiogra phy (ecg), chest radiography, and echocardiograph y. Myocardial infarction (mi), cardiomyopat hies, blunt cardiac injury, severe systemic or pulmonary hypertension, and myocardial depression caused by metabolic problems. Reponses: tachycardia, hypotension, and a narrowed pulse pressure. Emergency revascularizatio n = percutaneous coronary intervention or coronary artery bypass graft (cabg) Circulatory assist device = intra-aortic balloon pump (iabp) or a ventricular assist device (vad)