What component of the conduction system is referred to as the pacemaker of the heart?

Atrioventricular (AV) node

Bundle branches

Bundle of His

Sinoatrial (SA) node

Answer and Explanation

The Correct Answer is D

A.   Atrioventricular (AV) node: The AV node conducts electrical signals from the atria to the ventricles, but it is not the pacemaker of the heart.
B.   Bundle branches: The bundle branches transmit the electrical impulses to the ventricles but are not the primary pacemaker.
C.   Bundle of His: The Bundle of His conducts electrical signals from the AV node to the bundle branches and ventricles but does not act as the pacemaker.
D.   Sinoatrial (SA) node: The SA node, located in the right atrium, is the primary pacemaker of the heart, initiating electrical impulses that regulate heart rhythm.

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 C

Explanation

A. Asthma exacerbation typically causes wheezing or bronchospasm and would not usually cause decreased breath sounds in one lung.
B. Pulmonary embolism may cause breathlessness or decreased oxygen levels, but it wouldn't typically cause unilateral decreased breath sounds.
C. Pneumothorax is the most likely cause, as air in the pleural space can collapse the lung, leading to decreased or absent breath sounds on the affected side.
D. Pulmonary edema typically causes bilateral crackles and would not cause unilateral decreased breath sounds.

A. Palpate the popliteal nodes B. Palpate the preauricular nodes C. Palpate the axillary nodes D. Palpate the submandibular nodes E. Palpate the supraclavicular nodes

Correct Answer is {"A":{"answers":"E"},"B":{"answers":"A"},"C":{"answers":"D"},"D":{"answers":"B"},"E":{"answers":"C"}}

Explanation

Palpate the preauricular nodes (1st):

The preauricular lymph nodes are located in front of the ears, near the temple. The nurse starts at the head and neck to assess the regional nodes. Palpation of the preauricular nodes is often performed first because they are closest to the head and may be involved in infections affecting the eyes, ears, or sinuses.

Palpate the submandibular nodes (2nd):

The submandibular nodes are located beneath the jaw and are often involved in respiratory or oral infections. They are assessed after the preauricular nodes, as they are still part of the head and neck region, just below the chin.

Palpate the supraclavicular nodes (5th):

These nodes are located above the clavicle and are often associated with more serious conditions, such as cancer. Assessing them early in the examination can help identify any potential red flags.

Palpate the axillary nodes (3rd):

The axillary lymph nodes are located in the armpits and are important for breast tissue, upper limb, and chest infections. These are assessed after the head and neck nodes because they are part of the upper body region and located further down, near the chest.

Palpate the popliteal nodes (4th):

The popliteal nodes are located behind the knees. These nodes are assessed next, as part of the lower extremity examination. Palpating these nodes after the axillary nodes ensures a thorough systematic approach from upper to lower body.

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

What component of the conduction system is referred to as the pacemaker of the heart?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A client is brought to the emergency department by ambulance after being involved in a motor vehicle accident. The nurse finds that he has decreased breath sounds over the left lung fields. What might the nurse suspect is the cause?

Correct Answer is C

Explanation

A nurse is performing a lymphatic system assessment on a client reporting fatigue and malaise for one week. In which order should the nurse perform the head to toe assessments? Indicate the correct order from first to last. All options must be used.

Correct Answer is {"A":{"answers":"E"},"B":{"answers":"A"},"C":{"answers":"D"},"D":{"answers":"B"},"E":{"answers":"C"}}

Explanation

The nurse just noted from the medical record that the patient has a lesion that is confluent in nature. On examination, the nurse expects to find:

The nurse palpates a swollen inguinal lymph node. Which assessment should the nurse perform next?

A nurse in a provider's office is preparing to auscultate and percuss a client’s thorax as part of a comprehensive physical examination. Which of the following are considered normal findings? Select all that apply

The nurse percusses a client with COPD and expects to hear:

A heart murmur should be assessed for which of the following? Select all that apply.

During auscultation of the lungs, the nurse expects decreased breath sounds to be heard in which situation?

A nurse is examining a patient and finds a lesion that is a linear arrangement along a unilateral nerve route. The nurse would document this finding as