A nurse is preparing to measure the visual acuity of a client. The nurse should recognize that which nerve should be assessed?

Answer and Explanation

The Correct Answer is A

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.

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Correct Answer is A

Explanation

A) Atelectatic crackles that do not have a pathologic cause:
Atelectatic crackles are short, popping, crackling sounds heard during auscultation, typically occurring at the end of inspiration. These crackles are often heard in the bases of the lungs, particularly when the client is in a supine position, and are not associated with any pathological condition. Atelectatic crackles are a normal finding, especially in a sleeping or newly awakened client, as they result from the temporary collapse of small airways that quickly re-expand. Since they disappear after a few breaths and are not indicative of disease, they should be documented as atelectatic crackles without a pathological cause.

B) Fine crackles that may be a sign of impending pneumonia:
Fine crackles are high-pitched, popping sounds that are often heard during inspiration, especially at the lung bases. They are commonly associated with conditions like pneumonia, heart failure, or pulmonary fibrosis. However, in this case, the crackles heard stopped after a few breaths, which is characteristic of atelectatic crackles rather than fine crackles associated with pathological conditions. Fine crackles that last and occur consistently may suggest pathology, but in this scenario, the transient nature of the sounds points to atelectatic crackles, not pneumonia.

C) Vesicular breath sounds:
Vesicular breath sounds are normal lung sounds heard over the peripheral lung fields, characterized by a soft, low-pitched sound during inspiration, with a shorter expiration. These sounds are different from crackles, which are brief, popping sounds. Vesicular breath sounds do not refer to abnormal or adventitious sounds, such as the crackles heard in this client. Therefore, the nurse should not document the breath sounds as vesicular.

D) Fine wheezes:
Wheezes are continuous musical sounds produced by the narrowing of the airways, typically heard during exhalation. They are usually caused by conditions like asthma, chronic obstructive pulmonary disease (COPD), or bronchitis. The crackling sounds described in the question are not wheezes, as they are short, popping sounds rather than musical, continuous sounds. The transient nature of the sounds makes them more consistent with atelectatic crackles, not wheezes.

A. Demonstrate that both arteries will be palpated simultaneously to compare amplitude B. Instruct the client take a deep breath and "hold" while the nurse briefly auscultates C. Discuss that a light will be directed at the neck to observe for pulsations of the artery D. Show the client the diaphragm of the stethoscope that will be placed on the neck

Correct Answer is B

Explanation

A) Demonstrate that both arteries will be palpated simultaneously to compare amplitude: This is not recommended. Palpating both carotid arteries simultaneously can cause a decrease in blood flow to the brain, potentially leading to dizziness or syncope. It is important to palpate one carotid artery at a time to avoid reducing blood flow to the brain, especially in clients with cardiovascular disease or those at risk of stroke.

B) Instruct the client to take a deep breath and "hold" while the nurse briefly auscultates: This is the correct approach. Instructing the client to hold their breath helps minimize any interference from respiratory sounds while auscultating the carotid arteries for bruits. This technique ensures that breath sounds do not mask any abnormal vascular sounds, such as bruits, which could indicate a blockage or narrowing of the carotid arteries.

C) Discuss that a light will be directed at the neck to observe for pulsations of the artery: Observing pulsations with light is not an appropriate technique for assessing the carotid arteries. Pulsations may be visible in some cases, but palpation and auscultation are the more reliable methods for evaluating the carotid arteries for abnormalities such as bruits or reduced pulse amplitude.

D) Show the client the diaphragm of the stethoscope that will be placed on the neck: While it is appropriate to explain the process to the client, the action of showing the stethoscope is unnecessary at this stage. The focus should be on instructing the client to hold their breath for proper auscultation to listen for any abnormal vascular sounds.

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A nurse is preparing to measure the visual acuity of a client. The nurse should recognize that which nerve should be assessed?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is auscultating the lungs of a sleeping client and hears short, popping, crackling breath sounds that stop after a few breaths. How should the nurse document these breath sounds in the client's medical record?

Correct Answer is A

Explanation

A nurse is assessing the carotid arteries of a client diagnosed with cardiovascular disease. What action should be performed next by the nurse when assessing the carotid arteries in this client?

Correct Answer is B

Explanation

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