NURS5315 Exam 3 With All Questions and
Answers 2023
NURS5315 Exam 3 With All Questions and
Answers 2023
Beta 1 - ANSWER This receptor causes increased contractility, increased HR, and increased renin secretion
Beta 2 - ANSWER This receptor causes vasodilation and bronchial dilation
Beta 2 - A...
Beta 1 and Alpha 1 - ANSWER Levophed activates which 2 receoptors to cause
increased vasocontriction and increased contractility?
Sympathetic, adrenal - ANSWER Epinepherine and norepinephrine are released by
the ____________________ nervous system and the ________ gland.
Heart - ANSWER Beta 1 receptors are located in the __________.
NURS5315 Exam 3 With All Questions and
Answers 2023
, NURS5315 Exam 3 With All Questions and
Answers 2023
Blood vessels - ANSWER Beta 2 and alpha 1 receptors are located mainly in the
______________________.
Dopamine 1 - ANSWER These receptors are located in the renal, mesenteric,
coronary, and cerebrovascular blood vessels
Beta 1, increase - ANSWER Dobutamine stimulates ___________ receptors to
improve contractility and _____________ HR.
Chronotropy - ANSWER pertaining to heart rate
Inotropy - ANSWER force of myocardial contraction
Heart rate - ANSWER Drugs that affect the chronotropy affect the
__________________.
myocardial contraction - ANSWER Drugs that affect the inotropy affect the
_____________________.
Parasympathetic, decreases, decreases, dilation - ANSWER Acetylchoine is released
by the _____________________ nervous system and _______________ heart rate,
______________ contractility, and causes vaso_____________.
Diastole - ANSWER Relaxation of the heart
Systole - ANSWER Contraction of the heart
4, left atrium - ANSWER There are _____ pulmonary veins that take blood back to
the ________________ (chamber).
atrial kick, 20 - ANSWER slight pause of impulse between SA and AV so the blood
has time to push into the left ventricle. Represents about _____% of cardiac output.
lower - ANSWER The right side of the heart has ______ pressures than the left side.
higher - ANSWER The left side of the heart has ____________ pressures than the
right side.
Cardiac output - ANSWER heart rate x stroke volume
5 L/min - ANSWER normal adult cardiac output at rest
NURS5315 Exam 3 With All Questions and
Answers 2023
, NURS5315 Exam 3 With All Questions and
Answers 2023
Stroke volume - ANSWER The amount of blood ejected from the ventricle in one
contraction.
Preload - ANSWER degree of stretch of the cardiac muscle fibers at the end of
diastole
Decrease - ANSWER a saturation of <50% results in a(n) ______________ in
myocardial contraction.
Ejection Fraction - ANSWER measurement of the volume percentage of left
ventricular contents ejected with each contraction
55-65% - ANSWER normal ejection fraction
Decreases - ANSWER EF _____________ in systolic heart failure.
Increased - ANSWER HF may result from ________________ preload as it causes a
decline in stroke volume and a back-up of blood into the pulmonary circulation.
Afterload - ANSWER The force or resistance against which the heart pumps.
Afterload - ANSWER Includes aortic pressure and systemic vascular resistance
High, high, high - ANSWER hypertensive patients have a ________ SVR and a
__________ aortic pressure, resulting in a ________ afterload.
Ventricle, Hypertrophy - ANSWER Increased afterload increases the work of the
____________ and results in ______________.
Faster - ANSWER A low afterload enables the heart to contract ____________.
Arterial blood pressure - ANSWER cardiac output x total peripheral resistance
systolic blood pressure - ANSWER the pressure created in the arteries when the left
ventricle contracts and forces blood out into circulation
diastolic blood pressure - ANSWER the pressure in the arteries when the left
ventricle is refilling
Mean arterial pressure, arterial, blood - ANSWER average pressure in the arteries
during the cardiac cycle and is dependent on the elasticity of the _________ walls
and the mean volume of __________ in the arterials.
NURS5315 Exam 3 With All Questions and
Answers 2023
, NURS5315 Exam 3 With All Questions and
Answers 2023
Diameter - ANSWER SVR is directly related to the ______________ of the arteries.
Vasocontriction - ANSWER Angiotensin II impact on arteries
Vasoconstriction - ANSWER Epinepherine impact on arteries
Vasodilation - ANSWER Natiuretic hormones impact on arteries
Vasodilation - ANSWER Urodilatin impact on arteries
Stronger - ANSWER The greater the amount of intracellular calcium, the _______
the contraction.
Troponin C - ANSWER binds calcium to cause contraction
Tension, contraction - ANSWER Drugs which alter intracellular calcium levels will
affect _______ and ________.
Diltiazem and Verapamil - ANSWER 2 common non-dihydropyridine CCBs
Myocardium, decrease - ANSWER CCBs inhibit calcium influx into the ________ to
decrease calcium concentration and _________ tension and contractility.
Systolic Heart Failure - ANSWER CCBs should be avoided in ________________
___________ _____________________.
calcium pump, calcium - ANSWER Catecholaimes: increase activity of the
_____________ ________ in the sarcoplasmic reticulum (SR); therefore, increase the
release of _________ from the SR.
NURS5315 Exam 3 With All Questions and
Answers 2023
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