EKG
This wave represents atrial depolarization.
Answer:
What is the P wave?
Chest pain due to reduced blood flow to the heart is called this.
Answer:
What is angina pectoris?
Exchange of gases and nutrients occurs in these small vessels.
Answer:
What are capillaries?
A patient has chest pain during exertion that goes away with rest. This is called this.
Answer:
What is stable angina?
The valve between the left atrium and left ventricle is this.
Answer:
What is the mitral (bicuspid) valve?
The EKG is recorded using these attached to the skin.
Answer:
What are electrodes?
A blockage of blood flow to heart muscle is called this.
Answer:
What is myocardial infarction?
The main artery leaving the left ventricle is this.
Answer:
What is the aorta?
Left-sided heart failure causes fluid buildup in this organ.
Answer:
What are the lungs?
The valve between the right ventricle and pulmonary artery is this.
Answer:
What is the pulmonary valve?
The PR interval represents conduction through this structure.
Answer:
What is the AV node?
Hardening of arteries due to plaque buildup is called this.
Answer:
What is atherosclerosis?
Blood supply to the heart itself is via these vessels.
Answer:
What are coronary arteries?
Cardiogenic shock results from failure of this.
Answer:
What is cardiac pumping function?
The mitral valve prevents backflow into this chamber.
Answer:
What is the left atrium?
The QT interval represents total ventricular activity including depolarization and this.
Answer:
What is repolarization?
Hypertension increases risk of this vascular event in the brain.
Answer:
What is stroke?
Blood flow is inversely proportional to this vessel property.
Answer:
What is vascular resistance?
Anaphylactic shock involves this immune mediator.
Answer:
What is histamine?
The “lub” sound is caused by closure of these valves.
Answer:
What are AV valves (mitral and tricuspid)?
The AV node delays conduction to allow this to happen.
Answer:
What is ventricular filling?
Stroke volume decreases in heart failure due to this.
Answer:
What is reduced contractility?
Endothelial cells release this vasodilator.
Answer:
What is nitric oxide (NO)?
Explain why shock is life-threatening.
Answer:
What is it causes inadequate tissue perfusion leading to cellular hypoxia and organ failure?
Valve disease most directly affects this cardiac parameter.
Answer:
What is stroke volume?