Flashcards in Ch 14 questions Deck (79)
_______ allows a cardiac muscle cell to contract spontaneously without a stimulus from a nerve source.
The aorta receives its blood supply from the:
Blood enters the right atrium from the body through the:
The only vein(s) in the body that carry oxygenated blood is/are the:
Normal electrical impulses originate in the sinus node, just above the:
Dilation of the coronary arteries________ blood flow.
The ________ are tiny blood vessels that are approximately one cell thick.
_______ carry oxygen to the body's tissues and then remove carbon dioxide.
Red blood cells
_______ is the maximum pressure exerted by the left ventricle as it contracts.
Systolic blood pressure
Atherosclerosis can lead to a complete _______ of a coronary artery.
The lumen of an artery may be partially or completely blocked by the blood-clotting system due to a ________ that exposes the inside of the atherosclerotic wall.
Tissues downstream from a blood clot will suffer from a lack of oxygen. If blood is resumed in a short time, the ________ tissues will recover.
Risk factors for myocardial infarction include all of the following EXCEPT:
Increased activity level
When, for a brief period of time, heart tissues do not get enough oxygen, the pain is called:
Angina pain may be felt in the:
The underlying cause of a dissecting aortic aneurysm is:
Because the oxygen supply to the heart is diminished with angina, the __________ can become compromised, putting the person at risk for significant cardiac rhythm problems.
About ________ minutes after blood flow is cut off, some heart muscle cells begin to die.
An acute myocardial infarction is more likely to occur in the larger, thick-walled left ventricle, which needs more ________ than the right ventricle.
Blood and oxygen
Which of the following statements regarding CHF is FALSE?
Stridor is a common lung sound heard on exam
Cardiogenic shock can occur within 24 hours of a(n):
Acute myocardial infarction
Sudden death is usually the result of __________, in which the heart fails to generate an effective blood flow.
Disorganized, ineffective quivering of the ventricles is known as:
Which of the following is NOT a cause of congestive heart failure?
Signs and symptoms of shock include all of the following EXCEPT:
Elevated blood pressure
Which of the following changes in heart function occur in patients with CHF?
Enlargement of the left ventricle
Physical findings of AMI include skin that is _________ because of poor cardiac output and the loss of percussion.
All patient assessments begin by determining whether the patient:
To assess chest pain, use the mnemonic: