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 A

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 A

Explanation

A. Wheezes:

Wheezes are continuous, high-pitched, whistling lung sounds that are heard especially during expiration and sometimes during inspiration. They are caused by the rapid movement of air through narrowed or constricted airways, which is common in conditions like asthma. Wheezing is a characteristic adventitious sound associated with asthma and other obstructive respiratory disorders.

B. Whispered Pectoriloquy:

Whispered Pectoriloquy is an increased loudness of whispering noted during auscultation with a stethoscope on the lung fields. This phenomenon occurs when sound is transmitted clearly through consolidated or compressed lung tissue, making whispered sounds more distinct. It is a sign of lung consolidation, often seen in conditions like pneumonia.

C. Bronchial Sounds:

Bronchial sounds are harsh, high-pitched sounds heard over the trachea and the large bronchi. These sounds are normally heard during expiration. If they are heard over peripheral lung areas, it can indicate consolidation or compression of lung tissue, possibly due to pneumonia or tumor.

D. Bronchophony:

Bronchophony is a phenomenon in which spoken sounds are heard more clearly and distinctly through the stethoscope on auscultation of the lungs. Normally, sounds are muffled during auscultation. Increased clarity of spoken sounds can indicate lung consolidation, similar to whispered pectoriloquy, and is often associated with conditions like pneumonia.

A. Glandular tissue, which supports the breast by attaching to the chest wall. B. Fibrous, glandular, and adipose tissues C. Primarily muscle with very little fibrous tissue. D. Primarily milk ducts, known as lactiferous ducts.

Correct Answer is B

Explanation

A. Glandular tissue, which supports the breast by attaching to the chest wall: Glandular tissue is indeed a part of the breast structure, but it is not responsible for supporting the breast by attaching to the chest wall. It's the Cooper's ligaments, which are fibrous connective tissue, that provide structural support.

B. Fibrous, glandular, and adipose tissues: This statement is correct. The breast is composed of glandular tissue (responsible for milk production), fibrous tissue (including Cooper's ligaments for support), and adipose tissue (fat).

C. Primarily muscle with very little fibrous tissue: The breast contains very little muscle tissue. The main supportive structure is fibrous tissue, not muscle.

D. Primarily milk ducts, known as lactiferous ducts: Milk ducts are part of the glandular tissue and are responsible for carrying milk. However, the breast is not primarily made up of milk ducts; it consists of a combination of glandular, fibrous, and adipose tissues.

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 listening to the breath sounds of young adult client with severe asthma. The nurse recognizes that air passing through narrowed bronchioles would produce which of these adventitious sounds?

Correct Answer is A

Explanation

The nurse recognizes that the following statement is true regarding the internal structures of the breast: The breast is made up of:

Correct Answer is B

Explanation

The nurse is inspecting the anterior chest of an adult client. The nurse recognizes that which of the following should be included in the assessments?

A client was recently diagnosed with a heart murmur and is asking the nurse for more information. The nurse will educate the client that a heart murmur:

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

The nurse is performing a respiratory assessment on a client. Which of the following findings should the nurse report to the practitioner?

The nurse is performing an assessment of the client's mouth. The nurse recognizes that the tissue that connects the tongue to the floor of the mouth is the:

The nurse is examining an adult client within normal weight limit. The nurse notices that he has bilateral gynecomastia. Which of the following describes the nurse's best course of action?

A group of nursing students are studying the conduction system of the heart. The nursing students should recognize that the pacemaker of the heart is known as dropdown

The nurse is palpating a client's anterior chest wall and notices a course, crackling sensation over the skin surface. Which of the following should the nurse suspect from her findings?