Consequences of AMI pt. 2 Flashcards
What is shock?
Shock is present when body tissues do not get enough oxygen, causing body organs to malfunction.
What is cardiogenic shock?
Cardiogenic shock is caused by the heart lacking enough power to force the proper volume of blood through the circulatory system.
What commonly causes cardiogenic shock?
Cardiogenic shock is often caused by a heart attack.
Why is cardiogenic shock more common after an AMI?
It is more common after an AMI that affects the inferior and posterior regions of the left ventricle.
When can cardiogenic shock develop?
Cardiogenic shock can develop immediately or sometime after an AMI.
What are the signs and symptoms of cardiogenic shock?
The signs and symptoms are produced by the improper functioning of the body’s organs.
What is congestive heart failure (CHF)?
CHF occurs when the ventricular myocardium is so damaged that it can no longer keep up with the return flow of blood from the atria.
When can CHF occur?
CHF can occur after a myocardial infarction, in the setting of heart valve damage, or due to long-standing high blood pressure.
What conditions can weaken the pumping strength of the heart?
Conditions include coronary artery disease, diseased heart valves, and chronic hypertension.
What happens to the heart rate and left ventricle when heart function decreases?
The heart rate increases and the left ventricle enlarges.
What is pulmonary edema?
Pulmonary edema is the condition where fluid passes through the capillary walls into the alveoli.
What causes pulmonary edema in left-sided heart failure?
It occurs because the left side of the heart fails to pump blood effectively, causing blood to back up in the pulmonary veins.
What are the symptoms of severe pulmonary edema?
Symptoms include pink, frothy sputum and severe dyspnea.
What occurs in right-sided heart failure?
lungs congested with fluid because left side of heart not pumpingBlood backs up in the venae cavae, resulting in edema in the lower extremities or distention of the veins in the neck.
What is dependent edema?
Dependent edema is the collection of fluid in the part of the body that is closest to the ground, often showing up as swelling in the feet and legs.
What does chronic dependent edema indicate?
Chronic dependent edema may indicate underlying heart disease.
What is the relationship between right heart failure and systemic blood pressure?
Right heart failure can result in an inadequate supply of blood to the left ventricle, leading to a drop in systemic blood pressure.
Can patients present with signs of both left- and right-side heart failure?
Yes, left-side failure often leads to right-side failure.
