Cardiac Cycle Sequence: Electrical Stimulus Quiz and Flashcards

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Questions and Answers

What is the correct interpretation of hearing an S3, a soft murmur at the left midsternal border, and a venous hum in a 7-year-old child?

These findings are indicative of congenital problems

The venous hum most likely indicates an aneurysm

S3 is indicative of heart disease in children

These findings can all be normal in a child (correct)

What is the significance of a soft murmur at the left midsternal border in a 7-year-old child?

Could be a sign of an arterial blockage

Suggests congenital heart problems

May be a normal innocent heart murmur (correct)

Indicates a serious heart condition

What is the most likely cause of a venous hum in a 7-year-old child when standing?

Indicates an aneurysm

Signifies a heart defect

May suggest a blood clot

Common and has no pathologic significance (correct)

What is the sac that surrounds and protects the heart called?

Pericardium Signup and view all the answers

Which sequence best describes the direction of blood flow through the heart?

Right atrium, right ventricle, pulmonary artery, lungs, pulmonary vein, left atrium, left ventricle Signup and view all the answers

What is meant by atrial kick in the context of the heart's anatomy and physiologic functioning?

The forceful contraction of the atria that contributes to the filling of the ventricles Signup and view all the answers

Where is the correct location to palpate the apical impulse in a healthy adult?

Fifth left intercostal space, medial to the midclavicular line Signup and view all the answers

Why is percussion of limited usefulness in outlining the heart's borders?

Due to obesity and muscular chest walls Signup and view all the answers

What is the correct technique for auscultating heart sounds?

Inching the stethoscope in a rough Z pattern from the base of the heart across and down, then over to the apex Signup and view all the answers

What is the likely diagnosis for an irregular rhythm in a 16-year-old patient, with a rate that speeds up on inspiration and slows on expiration?

Sinus arrhythmia, normal in young adults and children Signup and view all the answers

Which sound marks the start of systole and is louder than S2 at the apex of the heart?

S1 coincides with the carotid artery pulse Signup and view all the answers

What should the nurse do to further assess a sound occurring after S2 at the second left intercostal space?

Watch the patient's respirations while listening for the effect on the sound, as it could be a split S2 Signup and view all the answers

What is expected during a cardiac assessment on a 4-year-old child?

An innocent or functional murmur at the second or third left intercostal space, which disappears with sitting and has no associated signs of cardiac dysfunction Signup and view all the answers

Which structure is responsible for initiating the electrical stimulus of the cardiac cycle?

Sinoatrial (SA) node Signup and view all the answers

What is the function of the atrial kick in the cardiac cycle?

Pushing the last 25% of blood into the ventricles at the end of diastole Signup and view all the answers

When does the closure of the tricuspid valve occur in a normal cardiac cycle?

Slightly later than the closure of the mitral valve Signup and view all the answers

Where is the second heart sound loudest, and when does it occur?

At the base of the heart, with the closure of semilunar valves Signup and view all the answers

What happens to the foramen ovale within the first hour after birth?

It closes Signup and view all the answers

What does elevated jugular venous pulsation at 45 degrees indicate?

Elevated pressure related to heart failure Signup and view all the answers

What causes the decrease in arterial blood pressure during pregnancy?

Peripheral vasodilatation Signup and view all the answers

When does blood pressure drop to its lowest point during pregnancy?

Second trimester Signup and view all the answers

In a normal cardiac cycle, what follows the sequence of SA node, AV node, and bundle of His?

Bundle branches Signup and view all the answers

What is the function of the atria at the end of diastole in a normal cardiac cycle?

Pushing the last 25% of blood into the ventricles Signup and view all the answers

What is the primary cause of palpitations during diastole?

Atrial contraction Signup and view all the answers

What can be felt as a palpitation during diastole?

Atrial contraction Signup and view all the answers

Which condition is characterized by shortness of breath at night and is aggravated by lying down?

Paroxysmal nocturnal dyspnea Signup and view all the answers

What are the major risk factors for heart disease?

High cholesterol, high blood pressure, diabetes, obesity, smoking, low activity level Signup and view all the answers

What is indicated by a blowing, swishing sound over the carotid artery with a stethoscope bell?

Valvular disorder Signup and view all the answers

What does forceful movement of the chest along the sternal border during inspection of the precordium suggest?

Right ventricular hypertrophy Signup and view all the answers

What signs of heart disease in infants are observed during feeding?

Dyspnea, diaphoresis, and fatigue Signup and view all the answers

What should the nurse avoid doing when assessing carotid arteries in a patient with cardiovascular disease?

Compressing the artery Signup and view all the answers

What is the expected increase in systolic blood pressure due to aging?

Slight increase Signup and view all the answers

What does a split S2 heart sound indicate?

Increased blood volume Signup and view all the answers

What does an apical impulse at the fourth or fifth intercostal space indicate?

Normal heart function Signup and view all the answers

What is the likely cause of difficulty sleeping and waking up breathless in a 45-year-old man?

Paroxysmal nocturnal dyspnea Signup and view all the answers

What should the nurse collect data regarding to assess for major risk factors of coronary artery disease?

Elevated serum cholesterol, elevated blood pressure, diabetes, obesity, smoking, and low activity level Signup and view all the answers

What should the nurse auscultate for when assessing carotid arteries?

Bruit Signup and view all the answers

Which of the following is a major risk factor for heart disease?

Elevated serum cholesterol Signup and view all the answers

What is a characteristic of paroxysmal nocturnal dyspnea?

Shortness of breath at night aggravated by lying down Signup and view all the answers

What does a split S2 heart sound indicate?

Expected increase in systolic blood pressure due to aging Signup and view all the answers

What should the nurse auscultate for when assessing carotid arteries in a patient with cardiovascular disease?

Bruits Signup and view all the answers

What does a blowing, swishing sound over the carotid artery with a stethoscope bell indicate?

Blood flow turbulence, suggesting a valvular disorder Signup and view all the answers

What does forceful movement of the chest along the sternal border during inspection of the precordium suggest?

Right ventricular hypertrophy Signup and view all the answers

What are signs of heart disease in infants during feeding?

Dyspnea, diaphoresis, and fatigue Signup and view all the answers

What should the nurse collect data regarding to assess for major risk factors of coronary artery disease?

Elevated serum cholesterol, elevated blood pressure, diabetes, obesity, smoking, and low activity level Signup and view all the answers

What does dyspnea, diaphoresis, and fatigue during feeding indicate in infants?

Signs of heart disease Signup and view all the answers

What should the nurse avoid when assessing carotid arteries to prevent an artificial bruit?

Compressing the artery Signup and view all the answers

What does an apical impulse at the fourth or fifth intercostal space indicate?

Normal heart function Signup and view all the answers

What may a 45-year-old man experiencing difficulty sleeping and waking up breathless be exhibiting signs of?

Paroxysmal nocturnal dyspnea, indicative of heart failure Signup and view all the answers

Study Notes

Assessment of Cardiovascular Health

A 70-year-old man exhibits a blood pressure of 140/100 mm Hg, heart rate of 104 beats per minute, and a split S2 heart sound, indicating an expected increase in systolic blood pressure due to aging.
Paroxysmal nocturnal dyspnea, which occurs with heart failure, is characterized by shortness of breath at night and is aggravated by lying down.
Major risk factors for heart disease include elevated serum cholesterol, elevated blood pressure, diabetes, obesity, smoking, and low activity level.
In infants, signs of heart disease during feeding include dyspnea, diaphoresis, and fatigue.
When assessing carotid arteries in a patient with cardiovascular disease, the nurse should auscultate for bruits and avoid compressing the artery to prevent an artificial bruit.
A blowing, swishing sound over the carotid artery with a stethoscope bell indicates blood flow turbulence, suggesting a valvular disorder.
Forceful movement of the chest along the sternal border during inspection of the precordium suggests right ventricular hypertrophy, while an apical impulse at the fourth or fifth intercostal space indicates normal heart function.
A 45-year-old man experiencing difficulty sleeping and waking up breathless may be exhibiting signs of paroxysmal nocturnal dyspnea, which is indicative of heart failure.
To assess for major risk factors of coronary artery disease, the nurse should collect data regarding elevated serum cholesterol, elevated blood pressure, diabetes, obesity, smoking, and low activity level.
Signs of heart disease in infants during feeding include dyspnea, diaphoresis, and fatigue.
When assessing carotid arteries, the nurse should auscultate for bruits and avoid compressing the artery to prevent an artificial bruit.
A blowing, swishing sound over the carotid artery with a stethoscope bell indicates blood flow turbulence, suggesting a valvular disorder.

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Test your knowledge of the cardiac cycle, heart sounds, and assessment of cardiovascular health with this quiz. Explore key concepts such as atrial contraction, heart murmurs, risk factors for heart disease, and signs of heart disease in infants and adults.

Cardiac Cycle and Heart Health Quiz CH 16

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Questions and Answers

What is the correct interpretation of hearing an S3, a soft murmur at the left midsternal border, and a venous hum in a 7-year-old child?

What is the significance of a soft murmur at the left midsternal border in a 7-year-old child?

What is the most likely cause of a venous hum in a 7-year-old child when standing?

What is the sac that surrounds and protects the heart called?

Which sequence best describes the direction of blood flow through the heart?

What is meant by atrial kick in the context of the heart's anatomy and physiologic functioning?

Where is the correct location to palpate the apical impulse in a healthy adult?

Why is percussion of limited usefulness in outlining the heart's borders?

What is the correct technique for auscultating heart sounds?

What is the likely diagnosis for an irregular rhythm in a 16-year-old patient, with a rate that speeds up on inspiration and slows on expiration?

Which sound marks the start of systole and is louder than S2 at the apex of the heart?

What should the nurse do to further assess a sound occurring after S2 at the second left intercostal space?

What is expected during a cardiac assessment on a 4-year-old child?

Which structure is responsible for initiating the electrical stimulus of the cardiac cycle?

What is the function of the atrial kick in the cardiac cycle?

When does the closure of the tricuspid valve occur in a normal cardiac cycle?

Where is the second heart sound loudest, and when does it occur?

What happens to the foramen ovale within the first hour after birth?

What does elevated jugular venous pulsation at 45 degrees indicate?

What causes the decrease in arterial blood pressure during pregnancy?

When does blood pressure drop to its lowest point during pregnancy?

In a normal cardiac cycle, what follows the sequence of SA node, AV node, and bundle of His?

What is the function of the atria at the end of diastole in a normal cardiac cycle?

What is the primary cause of palpitations during diastole?

What can be felt as a palpitation during diastole?

Which condition is characterized by shortness of breath at night and is aggravated by lying down?

What are the major risk factors for heart disease?

What is indicated by a blowing, swishing sound over the carotid artery with a stethoscope bell?

What does forceful movement of the chest along the sternal border during inspection of the precordium suggest?

What signs of heart disease in infants are observed during feeding?

What should the nurse avoid doing when assessing carotid arteries in a patient with cardiovascular disease?

What is the expected increase in systolic blood pressure due to aging?

What does a split S2 heart sound indicate?

What does an apical impulse at the fourth or fifth intercostal space indicate?

What is the likely cause of difficulty sleeping and waking up breathless in a 45-year-old man?

What should the nurse collect data regarding to assess for major risk factors of coronary artery disease?

What should the nurse auscultate for when assessing carotid arteries?

Which of the following is a major risk factor for heart disease?

What is a characteristic of paroxysmal nocturnal dyspnea?

What does a split S2 heart sound indicate?

What should the nurse auscultate for when assessing carotid arteries in a patient with cardiovascular disease?

What does a blowing, swishing sound over the carotid artery with a stethoscope bell indicate?

What does forceful movement of the chest along the sternal border during inspection of the precordium suggest?

What are signs of heart disease in infants during feeding?

What should the nurse collect data regarding to assess for major risk factors of coronary artery disease?

What does dyspnea, diaphoresis, and fatigue during feeding indicate in infants?

What should the nurse avoid when assessing carotid arteries to prevent an artificial bruit?

What does an apical impulse at the fourth or fifth intercostal space indicate?

What may a 45-year-old man experiencing difficulty sleeping and waking up breathless be exhibiting signs of?

Study Notes

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