The nurse is performing an assessment of the clients lungs. The nurse recognizes that the left lung:
Consists of two lobes.
Primarily consists of an upper lobe on the posterior chest.
Is shorter than the right lung because of the underlying stomach.
is divided by the horizontal fissure.
The Correct Answer is A
A. Consists of two lobes.
This statement is correct. The left lung consists of two lobes: the upper lobe and the lower lobe. The right lung, not the left lung, has three lobes: upper, middle, and lower lobes.
B. Primarily consists of an upper lobe on the posterior chest.
This statement is not accurate. The upper lobe of the left lung is present in the anterior and posterior parts of the chest. It is not limited to the posterior chest.
C. Is shorter than the right lung because of the underlying stomach.
This statement is not correct. The left lung is not shorter due to the underlying stomach. The left lung is slightly smaller than the right lung to accommodate the space for the heart, but this size difference is not due to the stomach.
D. Is divided by the horizontal fissure.
This statement is not accurate. The left lung is not divided by the horizontal fissure. The horizontal fissure is a feature of the right lung, not the left lung. The left lung is divided by the oblique fissure into the upper and lower lobes

Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Friction rub:
A friction rub is a grating or rubbing sound or sensation heard or felt during auscultation or palpation. It occurs when inflamed pleural or pericardial surfaces rub against each other during breathing or heartbeats, respectively.
B. Tactile fremitus:
Tactile fremitus refers to the palpable vibrations transmitted through the bronchopulmonary tree to the chest wall as the patient speaks. It is assessed by placing hands on the patient's back while the patient speaks certain words. Increased tactile fremitus can occur in conditions with lung consolidation, such as pneumonia.
C. Crepitus:
Crepitus is a crackling or grating sensation felt under the skin or heard when the ends of a broken bone rub against each other. It can also occur when air leaks into subcutaneous tissue, leading to a crackling sensation upon palpation.
D. Adventitious sounds:
Adventitious sounds refer to abnormal lung sounds heard during auscultation. These sounds include crackles (rales), wheezes, rhonchi, and pleural friction rubs. Adventitious sounds can indicate various respiratory conditions, such as pneumonia, bronchitis, or asthma.
Correct Answer is B
Explanation
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.
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