FACTORS AFFECTING CARDIAC OUTPUT PDF



Factors Affecting Cardiac Output Pdf

Factors Affecting Cardiac Output Best Essay Services. What is the factors affecting of the cardiac output? We need you to answer this question! If you know the answer to this question, please register to join our limited beta program and start the, Factors Affecting Cardiac Output. Cardiac output also known as CO is defined in unit equations measurements or in words. In other terms, it refers to the capacity of blood pumped from the ventricles going to the aorta in a minute..

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Cardiac Output and its determinants icuprimaryprep. Factors that affect cardiac output in a healthy patient include heart rate, change in position and certain activity of the nervous system, according to Vascular Concepts. Cardiac output refers to the volume of blood the heart pumps each minute., Helpful, trusted answers from doctors: Dr. Schabelman on what are factors that influence the cardiac output: In strict physiologic terms, cardiac output is determined by something called stroke volume and heart rate. Heart rate is self-explanatory. Stroke volume is the amount of blood that the heart pumps out with each beat. This in turn is dependent on blood pressure, total blood volume, and.

Cardiac output (CO) was measured by Doppler and cross-sectional echocardiography at the aortic, pulmonary, and mitral valves. Cardiac chamber size and ventricular function were investigated by M-mode echocardiography. CO increased from a mean of 4.88 l/min before the conception to a maximum of 7.21 l/min at 32 wk, the increase being significant Pharma 'Q's Cardiac Output and Factors affecting cardiac output. Cardiac Output and Factors affecting cardiac output Pharmastuff Tuesday, April 16, 2019. Pharmastuff . Cardiac Output . Cardiac output is the amount of blood ejected from the heart.The amount of blood ejected by ventricles by each contraction is Stroke volume.Cardiac output is expressed in litres/minute.Cardiac output is obtained

Factors that affect cardiac output in a healthy patient include heart rate, change in position and certain activity of the nervous system, according to Vascular Concepts. Cardiac output refers to the volume of blood the heart pumps each minute. They reduce arterial pressure by decreasing systemic vascular resistance. This benefits patients in heart failure by reducing the afterload on the left ventricle, which enhances stroke volume and cardiac output and leads to secondary decreases in ventricular preload and venous pressures.

Helpful, trusted answers from doctors: Dr. Uricchio on factors that determine cardiac output: In strict physiologic terms, cardiac output is determined by something called stroke volume and heart rate. Heart rate is self-explanatory. Stroke volume is the amount of blood that the heart pumps out with each beat. This in turn is dependent on blood pressure, total blood volume, and how strong the Cardiac output is the amount of blood pumped into the arterial system by the heart in a given time frame. This is affected by stroke volume, contraction coefficient, blood viscosity and stroke rate.

Helpful, trusted answers from doctors: Dr. Uricchio on factors that determine cardiac output: In strict physiologic terms, cardiac output is determined by something called stroke volume and heart rate. Heart rate is self-explanatory. Stroke volume is the amount of blood that the heart pumps out with each beat. This in turn is dependent on blood pressure, total blood volume, and how strong the Cardiac Output When the heart contracts Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. If you continue browsing the site, you agree to the use of cookies on this website.

Pharma 'Q's Cardiac Output and Factors affecting cardiac output. Cardiac Output and Factors affecting cardiac output Pharmastuff Tuesday, April 16, 2019. Pharmastuff . Cardiac Output . Cardiac output is the amount of blood ejected from the heart.The amount of blood ejected by ventricles by each contraction is Stroke volume.Cardiac output is expressed in litres/minute.Cardiac output is obtained DETERMINANTS AND FACTORS AFFECTING CARDIAC OUTPUT DETAILED SLIDE

CARDIAC MUSCLE CELLS CARDIAC OUTPUT (C0) = ml/min amt. of blood pumped by L. ventricle/min HEART RATE (HR) = beats/min HORMONES norepinephrine, epinephrine, and T 3 INCREASED BY S.D. OF ANS DECREASED BY P.D. OF ANS VENOUS RETURN - rate of blood flow through veins FILLING TIME - duration of ventricular diastole STROKE VOLUME - amount of blood 27/07/2018 · Human Physiology - Cardiac Output and Factors Affecting Cardiac Output - Duration: 6:07. Janux 8,897 views. 6:07. How to motivate yourself to change your behavior Tali Sharot

Risk Factors Affecting the Survival of Patients With. Cardiac output is the product of stroke volume and heart rate. Disease processes that alter either of these factors may alter cardiac output (unless the disease affects both in opposite directions and to equal degrees). Decreasing heart rates may either improve or worsen cardiac output depending on the individual patient. Patients with stiff, Cardiac output (CO) was measured by Doppler and cross-sectional echocardiography at the aortic, pulmonary, and mitral valves. Cardiac chamber size and ventricular function were investigated by M-mode echocardiography. CO increased from a mean of 4.88 l/min before the conception to a maximum of 7.21 l/min at 32 wk, the increase being significant.

FILLING TIME VENOUS RETURN CONTRACTILITY AFTERLOAD

Factors affecting cardiac output pdf

What Factors Affect Cardiac Output? Reference.com. They reduce arterial pressure by decreasing systemic vascular resistance. This benefits patients in heart failure by reducing the afterload on the left ventricle, which enhances stroke volume and cardiac output and leads to secondary decreases in ventricular preload and venous pressures., This is done by measuring the cardiac output (CO) measured in litres per minute. To enable comparison it is sometimes divided by body surface area, this is the cardiac index (CI). Cardiac Output is the product of Stroke Volume (SV) and Heart Rate (HR). Stroke volume is determined by three factors….

The Heart and Cardiac Output 911 TACTICAL MEDICINE

Factors affecting cardiac output pdf

Factors That Affect Cardiac Output Livestrong.com. Cardiac output (CO) was measured by Doppler and cross-sectional echocardiography at the aortic, pulmonary, and mitral valves. Cardiac chamber size and ventricular function were investigated by M-mode echocardiography. CO increased from a mean of 4.88 l/min before the conception to a maximum of 7.21 l/min at 32 wk, the increase being significant This is done by measuring the cardiac output (CO) measured in litres per minute. To enable comparison it is sometimes divided by body surface area, this is the cardiac index (CI). Cardiac Output is the product of Stroke Volume (SV) and Heart Rate (HR). Stroke volume is determined by three factors….

Factors affecting cardiac output pdf


Figure 19.4.1 – Major Factors Influencing Cardiac Output: Cardiac output is influenced by heart rate and stroke volume, both of which are also variable. SVs are also used to calculate ejection fraction , which is the portion of the blood that is pumped or ejected from the heart with each contraction. The Heart and Cardiac Output Managing cardiac emergencies relies heavily on an ability to recognize, understand and respond to altered cardiac output. This point cannot be emphasized enough. By understanding the factors that influence cardiac output, memory work becomes unnecessary. This chapter serves as a beginning in the process of

Cardiac Output the amount of blood pumped by each ventricle in one minute. Cardiac Output = Heart Rate * Stroke Volume –HR is the number of heart beats per minute –SV is the amount of blood pumped out by a ventricle with each beat [SV = EDV –ESV] is around 5L/min (70 beats/min 70 ml/beat = 4900 ml/min) and varies with demands of the body. Cardiac output is the product of stroke volume and heart rate. Disease processes that alter either of these factors may alter cardiac output (unless the disease affects both in opposite directions and to equal degrees). Decreasing heart rates may either improve or worsen cardiac output depending on the individual patient. Patients with stiff

27/07/2018 · Human Physiology - Cardiac Output and Factors Affecting Cardiac Output - Duration: 6:07. Janux 8,897 views. 6:07. How to motivate yourself to change your behavior Tali Sharot • To recognize that cardiac output varies directly with heart rate and stroke volume. • To identify factors that modify heart rate and stroke volume, and to indicate how they change cardiac output. Page 3. Cardiac Output Definition • Cardiac Output (CO) = The volume …

Determinants of Neonatal Cardiac Output F jay Fricker MD Neonatology basic core curriculum. Determinants of cardiac output in the Neonate Differences between Fetal and adult Myocardium Organization and the number of myofbrils undergo changes during development. § Orientation of myofibrils § Non-contractile elements Determinants of Neonatal Cardiac Output Fetal vs Adult … Helpful, trusted answers from doctors: Dr. Schabelman on what are factors that influence the cardiac output: In strict physiologic terms, cardiac output is determined by something called stroke volume and heart rate. Heart rate is self-explanatory. Stroke volume is the amount of blood that the heart pumps out with each beat. This in turn is dependent on blood pressure, total blood volume, and

27/07/2018 · Human Physiology - Cardiac Output and Factors Affecting Cardiac Output - Duration: 6:07. Janux 8,897 views. 6:07. How to motivate yourself to change your behavior Tali Sharot Cardiac output is measured in liters per minute, and is logically equal to the product of the stroke volume and also the number of beats per minute, also known as the heart rate. Heart rate is one of the factors that can affect cardiac output. The faster the heart beat, the more the amount of blood that can be pumped over a given period of time

The Heart and Cardiac Output Managing cardiac emergencies relies heavily on an ability to recognize, understand and respond to altered cardiac output. This point cannot be emphasized enough. By understanding the factors that influence cardiac output, memory work becomes unnecessary. This chapter serves as a beginning in the process of 20/06/2016 · control of cardiac output, cardiology - cardiac output, factors affecting cardiac output, cardiac output lecture, regulation of cardiac output, physiology of cardiac output, blood pressure cardiac

• To recognize that cardiac output varies directly with heart rate and stroke volume. • To identify factors that modify heart rate and stroke volume, and to indicate how they change cardiac output. Page 3. Cardiac Output Definition • Cardiac Output (CO) = The volume … They reduce arterial pressure by decreasing systemic vascular resistance. This benefits patients in heart failure by reducing the afterload on the left ventricle, which enhances stroke volume and cardiac output and leads to secondary decreases in ventricular preload and venous pressures.

Cardiac physiology Wikipedia

Factors affecting cardiac output pdf

Cardiovascular System. They reduce arterial pressure by decreasing systemic vascular resistance. This benefits patients in heart failure by reducing the afterload on the left ventricle, which enhances stroke volume and cardiac output and leads to secondary decreases in ventricular preload and venous pressures., What is the factors affecting of the cardiac output? We need you to answer this question! If you know the answer to this question, please register to join our limited beta program and start the.

Determinants of Neonatal Cardiac Output

Factors Affecting Cardiac Output Custom Fitness & Health. Cardiac output (CO) can be defined in words, units of measurement or equations. In short it is the volume of blood being pumped from the left ventricle of the heart in one minute, also expressed as liters per minute (L/min). In the average adult at rest the cardiac output will typically measure between 4.5 and 5., Cardiac remodelling in hypertension and its functional consequences. Cardiac structure is influenced by pressure and volume loads. 9 In hypertension changes in left ventricular structure occur in response to the increased pressure load and represent an attempt by the heart to normalise myocardial wall stress. The increased pressure load in.

LOW CARDIAC OUTPUT There are two factors that cause Low Cardiac Output: A. Abnormalities that cause the Venous Return to fall too low B. Abnormalities … Start studying Factors Affecting Cardiac Output. Learn vocabulary, terms, and more with flashcards, games, and other study tools.

Analysis of factors affecting the variability of fick versus indicator dilution measurements of cardiac output Author links open overlay panel L.David Hillis MD 1 … Cardiac Output = Stroke Volume * Heart Rate Cardiac Output (CO) is a function of the Stroke Volume (SV) i.e. the volume of blood in millimetres that is ejected from the left ventricle during systole, multiplied by the Heart Rate (HR) in beats per minute (bpm). This can be expressed as follows: CO = SV * HR Therefore, the Cardiac Output is given in units of (ml/min) The stroke volume is said to

Cardiac output is the product of stroke volume and heart rate. Disease processes that alter either of these factors may alter cardiac output (unless the disease affects both in opposite directions and to equal degrees). Decreasing heart rates may either improve or worsen cardiac output depending on the individual patient. Patients with stiff The Heart and Cardiac Output Managing cardiac emergencies relies heavily on an ability to recognize, understand and respond to altered cardiac output. This point cannot be emphasized enough. By understanding the factors that influence cardiac output, memory work becomes unnecessary. This chapter serves as a beginning in the process of

Cardiac output is the amount of blood your heart is able to pump in 1 minute. The problem in heart failure is that the heart isn't pumping out enough blood each time it beats (low stroke volume). To maintain your cardiac output, your heart can try to: Beat faster (increase your heart rate). Cardiac output is the amount of blood your heart is able to pump in 1 minute. The problem in heart failure is that the heart isn't pumping out enough blood each time it beats (low stroke volume). To maintain your cardiac output, your heart can try to: Beat faster (increase your heart rate).

Factors influencing oxygenavailability simultaneously, as mayoccur in acute trauma, re- ductions ofaslittle as 30percentmayproveintoler- able unless rapidly corrected (Freeman and Nunn, 1963). Reduction in blood flow Reductionin bloodflowis thecentral feature ofthe shock syndrome (Ledingham and Parratt, 1976). Amongstthe maineffects induced byhypovolaemic Cardiac output is the amount of blood pumped into the arterial system by the heart in a given time frame. This is affected by stroke volume, contraction coefficient, blood viscosity and stroke rate.

Determinants of Neonatal Cardiac Output F jay Fricker MD Neonatology basic core curriculum. Determinants of cardiac output in the Neonate Differences between Fetal and adult Myocardium Organization and the number of myofbrils undergo changes during development. § Orientation of myofibrils § Non-contractile elements Determinants of Neonatal Cardiac Output Fetal vs Adult … LOW CARDIAC OUTPUT There are two factors that cause Low Cardiac Output: A. Abnormalities that cause the Venous Return to fall too low B. Abnormalities …

Cardiac Index = Cardiac Output/Body Surface Area. Stroke volume index is the stroke volume divided by the body surface area. To learn more about cardiac output, its definition and the factors affecting cardiac output, keep visiting BYJU’S website or download BYJU’S app for further reference. 3. Identify the factors that control cardiac output. Measurement Cardiac Output The activity of the heart can be quantified to provide information on its health and efficiency. One important measurement is cardiac output (CO), which is the volume of blood ejected by the left ventricle each minute. Heart rate and stroke volume determine cardiac

as a safe and effective method of treatment of pericardial effusion; however, the risk factors affecting survival of these patients have not been clarified. The aim of this study was to investigate the risk factors affecting the short-term and long-term survival of patients with pericardial effusion submitted to subxiphoid pericardiostomy. Cardiac output (CO) is the amount of blood pumped by the heart per unit of time and it depends on 2 important variables like below; Stroke volume (SV) = the amount of blood ejected per beat of the heart (Normally, 70 ml/beat). Heart rate (HR) = heart beats per minute (normally, 70 beats/min).

Cardiac Index = Cardiac Output/Body Surface Area. Stroke volume index is the stroke volume divided by the body surface area. To learn more about cardiac output, its definition and the factors affecting cardiac output, keep visiting BYJU’S website or download BYJU’S app for further reference. The second factor affecting stroke volume is contractility. Contractility is force of contraction at any given EDV. Increased sympathetic activity increases contractility, so more blood is ejected with each contraction. This results in a lower ESV at the end of contraction. Consequently, an enhanced stroke volume is ejected with the same preload.

Determinants of Neonatal Cardiac Output F jay Fricker MD Neonatology basic core curriculum. Determinants of cardiac output in the Neonate Differences between Fetal and adult Myocardium Organization and the number of myofbrils undergo changes during development. § Orientation of myofibrils § Non-contractile elements Determinants of Neonatal Cardiac Output Fetal vs Adult … This is done by measuring the cardiac output (CO) measured in litres per minute. To enable comparison it is sometimes divided by body surface area, this is the cardiac index (CI). Cardiac Output is the product of Stroke Volume (SV) and Heart Rate (HR). Stroke volume is determined by three factors…

LOW CARDIAC OUTPUT There are two factors that cause Low Cardiac Output: A. Abnormalities that cause the Venous Return to fall too low B. Abnormalities … Cardiac Output = Stroke Volume * Heart Rate Cardiac Output (CO) is a function of the Stroke Volume (SV) i.e. the volume of blood in millimetres that is ejected from the left ventricle during systole, multiplied by the Heart Rate (HR) in beats per minute (bpm). This can be expressed as follows: CO = SV * HR Therefore, the Cardiac Output is given in units of (ml/min) The stroke volume is said to

Cardiac output is the amount of blood pumped into the arterial system by the heart in a given time frame. This is affected by stroke volume, contraction coefficient, blood viscosity and stroke rate. Cardiac output (CO) was measured by Doppler and cross-sectional echocardiography at the aortic, pulmonary, and mitral valves. Cardiac chamber size and ventricular function were investigated by M-mode echocardiography. CO increased from a mean of 4.88 l/min before the conception to a maximum of 7.21 l/min at 32 wk, the increase being significant

CARDIAC MUSCLE CELLS CARDIAC OUTPUT (C0) = ml/min amt. of blood pumped by L. ventricle/min HEART RATE (HR) = beats/min HORMONES norepinephrine, epinephrine, and T 3 INCREASED BY S.D. OF ANS DECREASED BY P.D. OF ANS VENOUS RETURN - rate of blood flow through veins FILLING TIME - duration of ventricular diastole STROKE VOLUME - amount of blood This is done by measuring the cardiac output (CO) measured in litres per minute. To enable comparison it is sometimes divided by body surface area, this is the cardiac index (CI). Cardiac Output is the product of Stroke Volume (SV) and Heart Rate (HR). Stroke volume is determined by three factors…

FACTORS AFFECTING CARDIAC OUTPUT RAPID REVISION... -

Factors affecting cardiac output pdf

Factors Affecting Cardiac Output Custom Fitness & Health. Cardiac output is the amount of blood your heart is able to pump in 1 minute. The problem in heart failure is that the heart isn't pumping out enough blood each time it beats (low stroke volume). To maintain your cardiac output, your heart can try to: Beat faster (increase your heart rate)., • cardiac output • As you go through this topic, keep in mind this flow chart, which outlines the factors affecting blood pressure: Factors Affecting Blood Pressure Peripheral Resistance Vessel Elasticity Blood Volume Cardiac Output Page 2. Goals • To understand the factors that affect peripheral resistance, and therefore blood pressure..

Cardiovascular PhysiologyFactors affecting Cardiac. Lowering of the cardiac output makes a person suspicious about his deteriorating health. Because a persistent reduction in the cardiac output can be due to numerous factors., Factors Affecting Blood Pressure There are three main factors which affect blood pressure: 1. Cardiac output Cardiac output refers to the amount of blood in litres pumped out of the heart per minute. It is calculated by taking the stroke volume (the amount of blood in millilitres pumped out into the circulation by the left ventricle each time it contracts) and multiplying it by the number of.

Cardiovascular PhysiologyFactors affecting Cardiac

Factors affecting cardiac output pdf

cardiac output SlideShare. as a safe and effective method of treatment of pericardial effusion; however, the risk factors affecting survival of these patients have not been clarified. The aim of this study was to investigate the risk factors affecting the short-term and long-term survival of patients with pericardial effusion submitted to subxiphoid pericardiostomy. Factors influencing oxygenavailability simultaneously, as mayoccur in acute trauma, re- ductions ofaslittle as 30percentmayproveintoler- able unless rapidly corrected (Freeman and Nunn, 1963). Reduction in blood flow Reductionin bloodflowis thecentral feature ofthe shock syndrome (Ledingham and Parratt, 1976). Amongstthe maineffects induced byhypovolaemic.

Factors affecting cardiac output pdf

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  • Factors Affecting Blood Pressure There are three main factors which affect blood pressure: 1. Cardiac output Cardiac output refers to the amount of blood in litres pumped out of the heart per minute. It is calculated by taking the stroke volume (the amount of blood in millilitres pumped out into the circulation by the left ventricle each time it contracts) and multiplying it by the number of Cardiac Output the amount of blood pumped by each ventricle in one minute. Cardiac Output = Heart Rate * Stroke Volume –HR is the number of heart beats per minute –SV is the amount of blood pumped out by a ventricle with each beat [SV = EDV –ESV] is around 5L/min (70 beats/min 70 ml/beat = 4900 ml/min) and varies with demands of the body.

    The second factor affecting stroke volume is contractility. Contractility is force of contraction at any given EDV. Increased sympathetic activity increases contractility, so more blood is ejected with each contraction. This results in a lower ESV at the end of contraction. Consequently, an enhanced stroke volume is ejected with the same preload. They reduce arterial pressure by decreasing systemic vascular resistance. This benefits patients in heart failure by reducing the afterload on the left ventricle, which enhances stroke volume and cardiac output and leads to secondary decreases in ventricular preload and venous pressures.

    There are two types of factors that increase the inotropic state. The types are either said to have positive inotropic or negative inotropic. In order for the cardiac muscles cells to contract, the sarcoplasmic reticulum has to release Ca2+ .What causes the contraction of the cardiac cells are the entry of Ca2+ into the cells. Therefore what Cardiac Output When the heart contracts Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. If you continue browsing the site, you agree to the use of cookies on this website.

    There are two types of factors that increase the inotropic state. The types are either said to have positive inotropic or negative inotropic. In order for the cardiac muscles cells to contract, the sarcoplasmic reticulum has to release Ca2+ .What causes the contraction of the cardiac cells are the entry of Ca2+ into the cells. Therefore what This is done by measuring the cardiac output (CO) measured in litres per minute. To enable comparison it is sometimes divided by body surface area, this is the cardiac index (CI). Cardiac Output is the product of Stroke Volume (SV) and Heart Rate (HR). Stroke volume is determined by three factors…

    Cardiac output (CO) is the amount of blood pumped by the heart per unit of time and it depends on 2 important variables like below; Stroke volume (SV) = the amount of blood ejected per beat of the heart (Normally, 70 ml/beat). Heart rate (HR) = heart beats per minute (normally, 70 beats/min). Cardiac output can also be affected significantly by the phase of respiration – intra-thoracic pressure changes influence diastolic filling and therefore cardiac output. This is especially important during mechanical ventilation, in which cardiac output can vary by up to 50% [citation needed] across a single respiratory cycle. Cardiac output

    What is the factors affecting of the cardiac output? We need you to answer this question! If you know the answer to this question, please register to join our limited beta program and start the Lowering of the cardiac output makes a person suspicious about his deteriorating health. Because a persistent reduction in the cardiac output can be due to numerous factors.

    Cardiac Output When the heart contracts Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. If you continue browsing the site, you agree to the use of cookies on this website. Factors that affect cardiac output in a healthy patient include heart rate, change in position and certain activity of the nervous system, according to Vascular Concepts. Cardiac output refers to the volume of blood the heart pumps each minute.

    Factors Affecting Cardiac Output. Cardiac output also known as CO is defined in unit equations measurements or in words. In other terms, it refers to the capacity of blood pumped from the ventricles going to the aorta in a minute. Factors that affect cardiac output in a healthy patient include heart rate, change in position and certain activity of the nervous system, according to Vascular Concepts. Cardiac output refers to the volume of blood the heart pumps each minute.

    Cardiac remodelling in hypertension and its functional consequences. Cardiac structure is influenced by pressure and volume loads. 9 In hypertension changes in left ventricular structure occur in response to the increased pressure load and represent an attempt by the heart to normalise myocardial wall stress. The increased pressure load in 11/10/2013 · Factors that control the stroke volume are divided into: 1- Intrinsic factors represented by frank-starling law. 2- Extrinsic factors. Some terms have …

    The Heart and Cardiac Output Managing cardiac emergencies relies heavily on an ability to recognize, understand and respond to altered cardiac output. This point cannot be emphasized enough. By understanding the factors that influence cardiac output, memory work becomes unnecessary. This chapter serves as a beginning in the process of Cardiac Index = Cardiac Output/Body Surface Area. Stroke volume index is the stroke volume divided by the body surface area. To learn more about cardiac output, its definition and the factors affecting cardiac output, keep visiting BYJU’S website or download BYJU’S app for further reference.

    Cardiac output (CO) is the amount of blood pumped by the heart per unit of time and it depends on 2 important variables like below; Stroke volume (SV) = the amount of blood ejected per beat of the heart (Normally, 70 ml/beat). Heart rate (HR) = heart beats per minute (normally, 70 beats/min). Cardiac output can also be affected significantly by the phase of respiration – intra-thoracic pressure changes influence diastolic filling and therefore cardiac output. This is especially important during mechanical ventilation, in which cardiac output can vary by up to 50% [citation needed] across a single respiratory cycle. Cardiac output

    Summarize factors affecting stroke volume and cardiac output Describe the cardiac response to variations in blood flow and pressure The autorhythmicity inherent in cardiac cells keeps the heart beating at a regular pace; however, the heart is regulated by and responds to outside influences as well. Helpful, trusted answers from doctors: Dr. Schabelman on what are factors that influence the cardiac output: In strict physiologic terms, cardiac output is determined by something called stroke volume and heart rate. Heart rate is self-explanatory. Stroke volume is the amount of blood that the heart pumps out with each beat. This in turn is dependent on blood pressure, total blood volume, and

    Cardiac Index = Cardiac Output/Body Surface Area. Stroke volume index is the stroke volume divided by the body surface area. To learn more about cardiac output, its definition and the factors affecting cardiac output, keep visiting BYJU’S website or download BYJU’S app for further reference. The second factor affecting stroke volume is contractility. Contractility is force of contraction at any given EDV. Increased sympathetic activity increases contractility, so more blood is ejected with each contraction. This results in a lower ESV at the end of contraction. Consequently, an enhanced stroke volume is ejected with the same preload.