Cardiovascular Emergencies Flashcards
What is atherosclerosis?
buildup of calcium and cholesterol in the arteries
What causes an AMI?
If a clot lodges in a coronary artery. Causes death to heart tissue and stop the heart from pumping at all
State controllable AMI risk factors
Cigarette smoking, high blood pressure, high cholesterol, diabetes, lack of exercise, and obesity
State uncontrollable AMI risk factors
Older age, family history, atherosclerotic coronary artery disease, race, ethnicity, and being male
True or false? Coronary artery disease is the leading cause of death in the United States for men and women
True
What are the signs and symptoms of AMI?
Weakness, nausea, sweating
Chest pain, discomfort, or pressure
Lower jaw, arm, back, abdomen, or neck pain
Irregular heartbeat and syncope (fainting)
Shortness of breath (dyspnea)
Nausea/vomiting
Pink, frothy sputum
Sudden death
What is asystole?
The absence of all electrical activity in the heart
When is a heart rate considered tachycardia?
100 bpm or more
When is a heart rate considered bradycardia?
60 bpm or less
What is ventricular tachycardia?
rapid heart rhythm, usually at 150-200 bpm. Electrical activity starts in ventricle instead of the atrium.
What is ventricular fibrillation?
disorganized, ineffective quivering of ventricles. No blood is pumped through the body and patient is unconscious in seconds.
What happens during left side heart failure?
Pulmonary edema occurs because the left side of the heart fails to pump blood effectively. The pulmonary veins get backed up. May be acute or chronic.
What happens during right side heart failure?
Blood backs up in the venae cavae, resulting in edema in lower extremities or distention of neck veins
What numbers are considered hypertension?
A systolic > 130 mmHg or diastolic > 80 mm Hg
What is a hypertensive emergency?
systolic greater than 180 mm Hg in the presence of impending or progressive organ damage.