During palpation of the anterior chest wall, the nurse notices a coarse, crackling sensation over the skin surface. On the basis of these findings, the nurse suspects:
Tactile fremitus
Crepitus.
Adventitious sounds.
Friction rub
The Correct Answer is B
A. This is a vibration felt on the chest wall when a patient speaks, often used to assess lung sounds. It is not associated with the crackling sensation described here.
B. The coarse, crackling sensation felt on the skin surface when palpating is crepitus, which occurs when air escapes into the subcutaneous tissue, often due to trauma, infection, or the presence of a pneumothorax.
C. These are abnormal lung sounds, such as crackles, wheezes, or rhonchi, heard with a stethoscope during auscultation, not felt on the chest wall during palpation.
D. A friction rub is a grating or scraping sound heard with a stethoscope, typically due to inflammation of the pleural surfaces. It is not a sensation felt on the chest wall.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Palpation of the thyroid helps assess its size, consistency, and tenderness but does not aid in detecting a bruit.
B. Swallowing helps assess the mobility of the thyroid but does not aid in auscultating for a bruit.
C. The bell of the stethoscope is used to detect low-pitched sounds, such as a bruit, which might be heard if there is increased blood flow through the thyroid gland, as seen in hyperthyroidism or Graves' disease.
D. The diaphragm is used to detect high-pitched sounds, such as lung or heart sounds. The bell is better for detecting a bruit.
Correct Answer is D
Explanation
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.
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