The nurse is reviewing the sequence of the cardiac cycle. The nurse recognizes that the electrical stimulus of the cardiac cycle follows which sequence?

AV node-SA node bundle of His- bundle branches

SA node- AV node-bundle of His -bundle branches

Bundle of His- AV node- SA node- Erb's Point

AV node-SA node-bundle of His- Erb's Point

Answer and Explanation

The Correct Answer is B

A. AV node - SA node - bundle of His - bundle branches:

This sequence is incorrect. The SA node (sinoatrial node) initiates the electrical impulse in the heart, followed by the AV node (atrioventricular node), bundle of His, and then the bundle branches.

B. SA node - AV node - bundle of His - bundle branches:

This sequence is correct. The electrical stimulus of the cardiac cycle starts at the SA node, which is the natural pacemaker of the heart. From the SA node, the impulse travels to the AV node, then to the bundle of His, and finally to the bundle branches, which distribute the impulse to the ventricles, causing them to contract.

C. Bundle of His - AV node - SA node - Erb's Point:

This sequence is incorrect. Erb's Point is a point on the chest where heart sounds S2 and S3 can be heard most distinctly.

D. AV node - SA node - bundle of His - Erb's Point:

This sequence is incorrect. The AV node comes after the SA node in the electrical conduction system of the heart. Erb's Point is not a part of the normal cardiac conduction pathway; it is a location for auscultation on the chest.

Nursing Test Bank

Quiz #1: RN Exams Pharmacology Exams Quiz #2: RN Exams Medical-Surgical Exams Quiz #3: RN Exams Fundamentals Exams Quiz #4: RN Exams Maternal-Newborn Exams Quiz #5: RN Exams Anatomy and Physiology Exams Quiz #6: RN Exams Obstetrics and Pediatrics Exams Quiz #7: RN Exams Fluid and Electrolytes Exams Quiz #8: RN Exams Community Health Exams Quiz #9: RN Exams Promoting Health across the lifespan Exams Quiz #10: RN Exams Multidimensional care Exams

Get 100+ Naxlex Exit Exams for $79 Try Naxlex NCLEX-RN (14 Day Free-Trial)

Naxlex Comprehensive Predictor Exams

Quiz #1: Naxlex RN Comprehensive online practice 2019 B with NGN Quiz #2: Naxlex RN Comprehensive Predictor 2023 Quiz #3: Naxlex RN Comprehensive Predictor 2023 Exit Exam A Quiz #4: Naxlex HESI Exit LPN Exam Quiz #5: Naxlex PN Comprehensive Predictor PN 2020 Quiz #6: Naxlex VATI PN Comprehensive Predictor 2020 Quiz #8: Naxlex PN Comprehensive Predictor 2023 - Exam 1 Quiz #10: Naxlex HESI PN Exit exam Quiz #11: Naxlex HESI PN EXIT Exam 2

Free Nursing Study Resources

Correct Answer is B

Explanation

A. Simultaneously palpating both arteries to compare amplitude: While comparing amplitudes is important, using the diaphragm of the stethoscope to listen for bruits (abnormal whooshing sounds indicating turbulent blood flow) is a more specific and accurate method for assessing the carotid arteries for potential vascular issues.

B. Listening with the diaphragm of the stethoscope to assess for bruits: This technique allows the nurse to detect abnormal sounds (bruits) that could indicate partial blockages or stenosis in the carotid arteries, suggesting a risk of stroke or transient ischemic attack.

C. Instructing the patient to take slow deep breaths during auscultation: Deep breaths are more relevant during lung auscultation. Carotid artery assessment focuses on detecting abnormal sounds and assessing blood flow rather than respiratory patterns.

D. Palpating the artery at the base of the neck: Palpation alone does not provide enough information about potential blockages or abnormalities in the carotid arteries. Listening with a stethoscope allows for a more detailed assessment of blood flow and the presence of bruits.f the nurse hears a bruit during auscultation, they shouldnotpalpate the carotid artery. A bruit suggests partial obstruction (carotid stenosis), and compressing the artery further could worsen blood flow.

A. Indicates the beginning of diastole B. Coincides with the carotid artery pulse C. is louder than an S1 D. Is caused by the closure of the semilunar valves

Correct Answer is D

Explanation

A. Indicates the beginning of diastole: This statement is not accurate. S2, the second heart sound, indicates the end of systole and the beginning of diastole. It is specifically associated with the closure of the aortic and pulmonary valves.

B. Coincides with the carotid artery pulse: This statement is not accurate. S2 is associated with the closure of the aortic and pulmonary valves in the heart, not with the carotid artery pulse.

C. Is louder than an S1: This statement is not accurate. S1, the first heart sound, is usually louder than S2. S1 is associated with the closure of the mitral and tricuspid valves and marks the beginning of systole.

D. Is caused by the closure of the semilunar valves: This statement is accurate. S2 is caused by the closure of the aortic and pulmonary valves, which are the semilunar valves in the heart. It marks the end of systole and the beginning of diastole.

View Question and Answer

Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.

Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today

The nurse is reviewing the sequence of the cardiac cycle. The nurse recognizes that the electrical stimulus of the cardiac cycle follows which sequence?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

The nurse is completing an assessment on a client suspected of having a transient ischemic attack. Which of the following techniques should the nurse use to assess the client's carotid arteries?

Correct Answer is B

Explanation

The nurse is listening to the heart sounds of a client. The nurse recognizes that the S2:

Correct Answer is D

Explanation

The nurse is teaching a group of clients about modifiable risk factors for cardiovascular disease. Which of the following should the nurse include in the teaching? (Select all that apply)

The nurse is performing an assessment of the clients lungs. The nurse recognizes that the left lung:

The nurse is testing a client's visual accommodation. Which of the following should the nurse recognize as an assessment finding from visual accommodation?

The nurse is auscultating a client's chest for breath sounds. In which situation should the nurse expect to auscultate increased breath sounds?

A client diagnosed with pleuritis has been admitted to the hospital and complains of pain with breathing. Which of the following assessment findings should the nurse expect when auscultating a client with pleuritis?

Which of the following assessment findings should the nurse report to the practitioner? (Select all that apply)

The nurse examines a client's auditory canal and tympanic membrane with an otoscope. The nurse recognizes that which of the following is considered an abnormal finding?

The nurse is assessing the heart sounds of a client. The nurse understands that to listen to the pulmonic valve, the stethoscope should be placed where?