NURS 1200 UNIT 1 EXAM TEST QUESTIONS
AND ANSWERS COMPLETE AND VERIFIED.
What is Starling's Law?
✔✔The greater the volume, the greater the stretch of the cardiac muscle
fibers and the greater the force with which the fibers contract to
accomplish emptying.
What is afterload?
✔✔The force that ventricles must overcome to eject their blood volume.
What is systemic vascular resistance?
✔✔The force or resistance of blood in the blood vessels that helps return
blood to the heart.
What is the cardiac index?
✔✔The cardiac output adjusted for the patient's body size or body surface
area (BSA).
What is action potential?
✔✔The electrical activity produced by movement of ions across cell
membranes that stimulates muscle contraction.
What is an electrocardiography?
✔✔A diagnostic test of cardiac function.
,What is depolarization?
✔✔1. Rapid inflow of Na ions, causing an electrical change where the
inside of a cell becomes (+) in relation to the outside.
2. Phase which the heart contracts a s a result of ion channel functions.
What is threshold potential?
✔✔The point at which an action potential is capable of being generated.
What is repolarization?
✔✔The process that returns the cell to its resting, polarized state.
What is the refractory period?
✔✔A phase during which myocardial cells resist stimulation.
What is the pulse?
✔✔A wave of blood created by he contraction of the left ventricle of the
heart.
What is the peripheral pulse?
✔✔The pulse located away from the heart, in the foot or the wrist.
What is the point of maximal impulse (PMI)?
✔✔A pulse located at the apex of the heart. It's called the apical pulse.
What is an arterial blood pressure?
✔✔The measure of the pressure exerted by the blood as it flows through
the arteries.
, What is systolic blood pressure?
✔✔The max pressure exerted within the arteries when the heart
compresses.
What is diastolic blood pressure?
✔✔The min pressure within the arteries during diastole.
What is the pulse pressure?
✔✔The difference between the systolic and diastolic pressure.
What factors affect blood pressure?
✔✔Age, gender, exercise, stress, race, medications, obesity, and the
disease process.
What is arteriosclerosis?
✔✔An arterial disorder characterized by thickening, loss of elasticity, &
calcification of arterial walls.
What is compliance?
✔✔1. Relationship between the volume of the intracranial components &
intracranial pressure.
2. The amount of distention or expansion the ventricles can achieve to
increase stroke volume.
3. The extent to which an individual's behavior coincides with medical or
health advice.
AND ANSWERS COMPLETE AND VERIFIED.
What is Starling's Law?
✔✔The greater the volume, the greater the stretch of the cardiac muscle
fibers and the greater the force with which the fibers contract to
accomplish emptying.
What is afterload?
✔✔The force that ventricles must overcome to eject their blood volume.
What is systemic vascular resistance?
✔✔The force or resistance of blood in the blood vessels that helps return
blood to the heart.
What is the cardiac index?
✔✔The cardiac output adjusted for the patient's body size or body surface
area (BSA).
What is action potential?
✔✔The electrical activity produced by movement of ions across cell
membranes that stimulates muscle contraction.
What is an electrocardiography?
✔✔A diagnostic test of cardiac function.
,What is depolarization?
✔✔1. Rapid inflow of Na ions, causing an electrical change where the
inside of a cell becomes (+) in relation to the outside.
2. Phase which the heart contracts a s a result of ion channel functions.
What is threshold potential?
✔✔The point at which an action potential is capable of being generated.
What is repolarization?
✔✔The process that returns the cell to its resting, polarized state.
What is the refractory period?
✔✔A phase during which myocardial cells resist stimulation.
What is the pulse?
✔✔A wave of blood created by he contraction of the left ventricle of the
heart.
What is the peripheral pulse?
✔✔The pulse located away from the heart, in the foot or the wrist.
What is the point of maximal impulse (PMI)?
✔✔A pulse located at the apex of the heart. It's called the apical pulse.
What is an arterial blood pressure?
✔✔The measure of the pressure exerted by the blood as it flows through
the arteries.
, What is systolic blood pressure?
✔✔The max pressure exerted within the arteries when the heart
compresses.
What is diastolic blood pressure?
✔✔The min pressure within the arteries during diastole.
What is the pulse pressure?
✔✔The difference between the systolic and diastolic pressure.
What factors affect blood pressure?
✔✔Age, gender, exercise, stress, race, medications, obesity, and the
disease process.
What is arteriosclerosis?
✔✔An arterial disorder characterized by thickening, loss of elasticity, &
calcification of arterial walls.
What is compliance?
✔✔1. Relationship between the volume of the intracranial components &
intracranial pressure.
2. The amount of distention or expansion the ventricles can achieve to
increase stroke volume.
3. The extent to which an individual's behavior coincides with medical or
health advice.
