22 Questions
What is cardiac output, and how is it calculated?
The amount of blood ejected by the left ventricle, calculated by HR × SV
What is the normal range for cardiac output?
4 to 8 L/min
What is the effect of a sustained rapid heart rate on diastolic filling and coronary artery perfusion?
Decreased diastolic filling and coronary artery perfusion
What is the term for the ability of the cardiovascular system to alter cardiac output in response to various situations?
Cardiac reserve
What happens to afterload when a patient is receiving a drug that decreases it?
It decreases
What is the term for the amount of blood ejected by the ventricles with each heartbeat?
Stroke volume
What is the primary function of arterioles?
To regulate blood pressure through vasodilation and vasoconstriction
What is the normal range for systolic blood pressure?
Less than 120 mm Hg
What is the effect of sympathetic stimulation on heart rate?
It increases heart rate
What is the function of baroreceptors in the regulation of blood pressure?
To sense stretch or pressure in the arterial system
What is the result of increased CO2 levels on the body?
It increases respiratory rate and blood pressure
What is the primary function of veins in the circulatory system?
To carry deoxygenated blood from the body to the heart
What is the equation that represents blood pressure?
BP = CO x SVR
What is the normal range for blood pressure?
Less than 80 mm Hg
What is the non-invasive technique used to measure blood pressure?
Sphygmomanometer and stethoscope
What is pulse pressure?
The difference between SBP and DBP
What is the formula to calculate mean arterial pressure?
MAP = (SBP + 2 DBP) / 3
What is a normal pulse pressure?
About 1/3 of the SBP
What is a common age-related change in the heart?
Thickening and stiffening of the heart valves
What happens to systemic vascular resistance with age?
It increases
What is a purpose of measuring postural blood pressure?
To assess for orthostatic hypotension
What is a goal for mean arterial pressure?
MAP > 60 mm Hg
Assess your knowledge of the cardiovascular system, including blood circulation, blood vessels, and regulation of the cardiovascular system. This quiz covers key concepts related to heart function, blood flow, and the autonomic nervous system.
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