A nurse is preparing to auscultate for heart sounds on a client. Which technique should be used by the nurse?
Listening for sounds from the apex to the heart to the base of the heart.
Listening to the sounds at the site where the apical pulse is heard to be the loudest.
Listening from the base of the heart across and down, then over to the apex.
Listening to the sounds at the aortic, tricuspid, pulmonic, arid mitral areas.
The Correct Answer is D
A) Listening for sounds from the apex to the heart to the base of the heart: This technique is not the most effective for auscultation of heart sounds. While it may seem logical to start at the apex and move toward the base, heart sounds are best heard at specific anatomical locations where the valves are closest to the chest wall. Moving from apex to base does not follow the traditional systematic approach used to assess all heart sounds.
B) Listening to the sounds at the site where the apical pulse is heard to be the loudest: The apical pulse is typically located at the mitral area (left 5th intercostal space, midclavicular line), and while this is an important location for assessing heart sounds, it is not the recommended approach for auscultation. The nurse should listen to all the key valve areas to fully assess the heart's function and detect abnormalities such as murmurs or extra heart sounds.
C) Listening from the base of the heart across and down, then over to the apex: This approach is not systematic and may cause the nurse to miss important sounds in the other areas of the heart. The base of the heart is located at the top (around the second intercostal space), while the apex is at the bottom (left 5th intercostal space). A more structured method of auscultation is required to ensure all key areas are evaluated.
D) Listening to the sounds at the aortic, tricuspid, pulmonic, and mitral areas: This is the correct technique for auscultating heart sounds. The nurse should listen over the aortic, pulmonic, tricuspid, and mitral valve areas in sequence to assess heart sounds thoroughly. Each of these areas is associated with a specific valve, and auscultation at these locations helps the nurse identify any abnormal heart sounds, such as murmurs, S3, or S4, as well as the timing of S1 and S2 heart sounds. This systematic approach ensures a comprehensive assessment of heart function.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A) II:
This is the correct answer. The optic nerve (cranial nerve II) is responsible for visual acuity, as it transmits visual information from the retina to the brain. When assessing visual acuity, the nurse is evaluating the function of the optic nerve, which is responsible for the sense of vision. Therefore, cranial nerve II should be assessed during a visual acuity exam.
B) I:
This is incorrect. The olfactory nerve (cranial nerve I) is responsible for the sense of smell, not vision. Visual acuity is not related to the olfactory nerve, so it is not involved in this type of assessment.
C) VI:
This is incorrect. The abducens nerve (cranial nerve VI) controls the lateral rectus muscle of the eye, which is responsible for outward eye movement. While cranial nerve VI plays a role in eye movement, it is not directly involved in measuring visual acuity, which pertains to the function of the optic nerve.
D) IV:
This is incorrect. The trochlear nerve (cranial nerve IV) controls the superior oblique muscle, which helps with eye movement, specifically downward and inward eye movements. This nerve is not involved in measuring visual acuity.
Correct Answer is A
Explanation
A) Whisper random numbers and letters, then have the client repeat them:
This is correct. The voice test is a simple way to assess a client's hearing. The nurse should stand about 2 feet away from the client and whisper random numbers or letters. The client should repeat what they hear. This test checks the ability to hear and distinguish sounds, particularly for high-frequency tones. It's an effective screening method for detecting hearing loss.
B) Shield the lips so that the sound is muffled:
This is incorrect. The nurse should not shield their lips during the voice test because it could interfere with the client's ability to hear and potentially read the nurse's lips, which can help with understanding. The client should be allowed to observe lip movements to aid in comprehension of the sounds being spoken.
C) Stand approximately 4 feet away from the client:
This is incorrect. The recommended distance for performing the voice test is typically around 2 feet, not 4 feet. Standing too far away can make it more difficult for the client to hear the whispered numbers or letters and could affect the accuracy of the test. The nurse should stand close enough (about 2 feet) to ensure that the sound is audible to the client but not too close as to distort the test.
D) Have the client place a finger in the ear canal to occlude outside noise:
This is incorrect. While the client should be instructed to avoid distractions or loud environments during the test, placing a finger in the ear canal is not necessary. The test assesses the client's ability to hear sound, and occluding the ear could affect the results. The client should simply be in a quiet environment.
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