Question: Which of the following risk factors has been proven to increase the risk of cardiovascular disease?

Answer: Lack of exercise

Question: Public health prevention efforts for cardiovascular disease focus on these education topics:

Answer: Risk factors and signs and symptoms of CVD.

Question: Blood entering the left atrium arrives via the:

Answer: pulmonary vein.

Question: The pressure in the left ventricle at the end of diastole is called:

Answer: preload.

Question: For a resting potential in a cardiac cell to exist, there must be an:

Answer: adequate number of potassium ions inside the cell and sodium ions outside the cell.

Question: The proportion of the left ventricular volume that is pumped out of the heart during systole is the:

Answer: ejection fraction.

Question: Beta-blockers generally have which of the following effects?

Answer: Decreased myocardial contractility.

Question: When the ECG paper is traveling at the standard rate of 25 mm/sec, a large box in the horizontal direction equals:

Answer: 0.20 seconds.

Question: Prior to any compensation, which of the following will most likely occur due to an increase in peripheral vascular resistance?

Answer: Decreased stroke volume.

Question: If the stroke volume decreased, which of the following would occur to maintain the blood pressure at its current value?

Answer: Increased heart rate and increased peripheral vascular resistance.