Nurs5315 Questions with Detailed Verified Answers

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Nurs5315 Questions with Detailed
Verified Answers


Question: Clinical implication for Beta blockers? (book)


Ans: Atrial fibrillation, chronic left heart failure or reduced ejection
fraction


Question:Beta Blockers (book)


Ans: reduce myocardial demand. By blocking beta receptors.


Question:Myocardial contractility is a change in developed tension at a given
resting fiber length, which is simply the ability of the heart muscle to shorten.
At the molecular level, thin filaments of actin slide over thick filaments of
myosin called the cross-bridge cycle of muscle contraction. (video)


Ans: Calcium interacts with troponin C which causes tropomyosin to move
thus allowing actin and myosin to work together to cause contraction.


Question:Explain the difference between cardiac hemodynamic measures
Video Lecture:
Cardiac Output

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Ans: Cardiac output is the amount of blood pushed from the left ventricle
in 1 minute. It is calculated by multiplying the heart rate in beats per
minute by the stroke volume.


Question:Right Heart (book)


Ans: pumps blood through the lungs


Question:Left Heart (book)


Ans: sends blood throughout the systemic circulation, which supplies all of
the body except the lungs.


Question:Arteries (hint A for away) (Book)


Ans: carry blood (away) from the heart to all parts of the body, where they
branch into arterioles and even smaller vessels until they become a fine
meshwork of capillaries.


Question:Capillaries (Book)


Ans: allow the closest contact and exchange between the blood and the
interstitial space, or interstitium—the environment in which the cells live


Question:Venules and the veins (Book)


Ans: carry blood from capillaries back to the heart.


Question:Lymph (Book)