Human Physiology: An Integrated Approach (8th Edition)
8th Edition
ISBN: 9780134605197
Author: Dee Unglaub Silverthorn
Publisher: PEARSON
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Chapter 14, Problem 24RQ
Police Captain Jeffers in question 21 has an ejection fraction (SV divided by EDV) of only 25%. His stroke volume is 40 mL/beat, and his heart rate is 100 beats/min. What are his EDV, ESV, and CO? Show your calculations.
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Chapter 14 Solutions
Human Physiology: An Integrated Approach (8th Edition)
Ch. 14.1 - A cardiovascular system has what three major...Ch. 14.1 - What is the difference between (a) the pulmonary...Ch. 14.2 - Which is more important for determining flow...Ch. 14.2 - The two identical tubes below have the pressures...Ch. 14.2 - All four tubes below have the same driving...Ch. 14.2 - Two canals in Amsterdam are identical in size, but...Ch. 14.3 - What prevents electrical signals from passing...Ch. 14.3 - Prob. 8CCCh. 14.3 - Prob. 9CCCh. 14.3 - Compare the receptors and channels involved in...
Ch. 14.3 - If a myocardial contractile cell is placed in...Ch. 14.3 - A drug that blocks all Ca2+ channels in the...Ch. 14.3 - Which ions moving in what directions cause the...Ch. 14.3 - At the molecular level, what is happening during...Ch. 14.3 - Lidocaine is a molecule that blocks the action of...Ch. 14.3 - What does increasing K+ permeability do to the...Ch. 14.3 - A new cardiac drug called ivabradine selectively...Ch. 14.3 - Do you think that the Ca2+ channels in...Ch. 14.3 - What happens to the action potential of a...Ch. 14.3 - In an experiment, the vagus nerve, which carries...Ch. 14.4 - Name two functions of the AV node. What is the...Ch. 14.4 - Prob. 22CCCh. 14.4 - Occasionally an ectopic pacemaker {ktopos, out of...Ch. 14.4 - Prob. 24CCCh. 14.4 - Which chamberatrium or ventriclehas higher...Ch. 14.4 - Prob. 26CCCh. 14.4 - Prob. 27CCCh. 14.4 - Prob. 28CCCh. 14.4 - Prob. 29CCCh. 14.4 - Why does ventricular pressure shoot up suddenly at...Ch. 14.4 - Prob. 31CCCh. 14.4 - Prob. 32CCCh. 14.4 - A persons aortic valve opening has become...Ch. 14 - What contributions to understanding the...Ch. 14 - List three functions of the cardiovascular system.Ch. 14 - Prob. 3RQCh. 14 - Prob. 4RQCh. 14 - Prob. 5RQCh. 14 - Prob. 6RQCh. 14 - Prob. 7RQCh. 14 - Distinguish between the two members of each of the...Ch. 14 - Prob. 9RQCh. 14 - Prob. 10RQCh. 14 - What is the proper term for each of the following?...Ch. 14 - List the events of the cardiac cycle in sequence,...Ch. 14 - Prob. 13RQCh. 14 - Compare and contrast the structure of a cardiac...Ch. 14 - Prob. 15RQCh. 14 - Correlate the waves of an ECG with mechanical...Ch. 14 - Prob. 17RQCh. 14 - List and briefly explain four types of information...Ch. 14 - Define inotropic effect. Name two drugs that have...Ch. 14 - Prob. 20RQCh. 14 - Police Captain Jeffers has suffered a myocardial...Ch. 14 - Prob. 22RQCh. 14 - Prob. 23RQCh. 14 - Police Captain Jeffers in question 21 has an...Ch. 14 - Prob. 25RQCh. 14 - Prob. 26RQCh. 14 - Prob. 27RQCh. 14 - A person has a total blood volume of 5 L. Of this...
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- .List the abbreviations and normal ranges of the following computed hemodynamic values: stroke volume, stroke volume index, cardiac index,?arrow_forwardThere are three major factors that affect stroke volume and therefore affect cardiac output: afterload, preload, and contractility. Select two of these factors and explain how and why each affects cardiac output.arrow_forwardWhat two values are needed in order to calculate cardiac output (CO) for a ventricle? a. end-diastolic volume (EDV) and end-systolic volume (ESV) b. stroke volume (SV) and blood pressure (BP) c. stroke volume (SV) and heart rate (HR) d. heart rate (HR) and end-diastolic volume (EDarrow_forward
- Yasmine is a 38-year old woman who is trying to get into working out. Her resting HR is currently 68bpm. Assuming a max HR of 220- age, what percentage of HRmax would the above heart rate zones from question 1 (intensities found for HRR) be for Yasmine?arrow_forwardIf stroke volume is 0.1 liters and heart rate is 100 beats per min, what is cardiac output? Group of answer choices 100 liters per min 10 liters per min 1000 liters per min 5 liters per minarrow_forwardBlood pressure is usually given as the ratio of the maximum pressure (systolic pressure) to the minimum pressure (diastolic pressure). For example a typical value for this ratio for a human would be 120/70, where the pressures are in mm Hg (millimeters of mercury, SG = 13.6). What would these pressures be in kPa (kilo Pascals)?: (a) systolic pressure (kPa), (b) diastolic pressure (kPa).arrow_forward
- How do you find the time duration (in ms) for each region of the PQRST in ECG? The BPM is 83.arrow_forwardthe physician ordered vasopressor medication as: Norepinephrine 16mg in 250ml D5W to run 0.05mcg/kg/min to 3 mcg/kg/min to treat blood pressure of mean arterial pressure >65mmhg weightof patient is 156lbs What is the rate of infusion in ml/hr for 0.05mcg/kg/minarrow_forwardyou are using a sphygmomanometer while listening to your patient's heart with a stethoscope. You heard the first tapping sound at 125mm Hg and then the sounds stopped at 83mm Hg. Calculate the mean arterial pressure. (A) 42 (B) 14 (C) 124 (D) 97 (E) 104arrow_forward
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