Answered: Compare the cardiac action potential in…

Understanding Health Insurance: A Guide to Billing and Reimbursement

14th Edition

ISBN:9781337679480

Author:GREEN

Publisher:GREEN

Chapter10: Coding Compliance, Clinical Documentation Improvement, And Coding For Medical Necessity

Section: Chapter Questions

Problem 3R

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Question

Please answer multiple choicess

Compare the cardiac action potential in ventricular cardiac myocytes and the electrocardiogram. Which parts are most synchronous

Combination of the cardiac action potentials and the T waves
Combination of the cardiac action potential and the QRS complex

2. While taking blood pressure using a blood pressure cuff and stethoscope. you take the systolic reading. What is happening and what does it represent in terms of blood flow ?

The last korotkoff sound which is laminar flow
The appearance of the first korotkoff sound which is turbulent flow
An increase in sound intensity which is laminar flow

3.Dr. Wu is demonstrating th ecardiac dance. As he gets up too quickly, he experiences sudden dizziness and passes out. What could be the reason he has passed out?

Because his baroreceptors failed to respond quickly enough to the sudden drop in blood pressure?
There was an immediate increase in the firing of action potentials to the cardiovascular control center
There was an increase in the activity of afferent/motor neurons

4. Which valve is closed during the ejection of stroke volume?