What cranial nerve is responsible for the taste sensation of the posterior third of the tongue?

Facial

Abducens

Glossopharyngeal

Hypoglossal

Answer and Explanation

The Correct Answer is C

Choice A Reason:
The facial nerve, or cranial nerve VII, is responsible for the taste sensation in the anterior two-thirds of the tongue, not the posterior third. It carries taste sensations from the front part of the tongue via the chorda tympani branch.

Choice B Reason:
The abducens nerve, or cranial nerve VI, has no role in taste sensation. It is primarily involved in controlling the lateral rectus muscle of the eye, which abducts the eye.

Choice C Reason:
The glossopharyngeal nerve, or cranial nerve IX, provides special sensory innervation for taste to the posterior third of the tongue. This enables the sensation of various tastes like salty, sweet, sour, and bitter in this region.

Choice D Reason:
The hypoglossal nerve, or cranial nerve XII, is responsible for motor control of the tongue muscles but does not provide sensory innervation for taste.

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Correct Answer is A

Explanation

Choice a reason :
Referring the client for medical follow-up is the most appropriate action. Acanthosis Nigricans is often associated with insulin resistance and is a risk factor for diabetes mellitus. The client's symptoms of fatigue, thirst, and frequent urination are classic signs of diabetes. Therefore, a comprehensive medical evaluation is necessary to rule out diabetes or other underlying conditions that could be causing these symptoms.
Choice b reason
While Acanthosis Nigricans can sometimes be associated with malignancy, it is more commonly linked to insulin resistance and diabetes. The client's presenting symptoms are not typical of cancer but are indicative of diabetes. Therefore, while a family history of cancer is relevant to the client's overall health, it is not the immediate concern based on the current presentation.
Choice c reason
Documenting findings is an essential part of the nursing process; however, the presence of Acanthosis Nigricans, especially when coupled with symptoms of fatigue, thirst, and frequent urination, should not be considered benign without further investigation. These findings warrant further assessment to determine the underlying cause.
Choice d reason
Performing a random blood sugar test could be a part of the initial assessment; however, it should not replace a referral for a comprehensive medical evaluation. A random blood sugar test alone may not be sufficient to diagnose diabetes or determine the cause of the client's symptoms. A full medical follow-up will likely include blood sugar testing along with other diagnostic tests.

A. Objective Data B. Introspective Data C. Subjective Data D. Reflective Data

Correct Answer is C

Explanation

Choice a reason:
Objective data refers to information that is observable and measurable by the healthcare provider, such as vital signs, physical examination findings, and laboratory results. The patient's statements about his feelings are not objective data because they cannot be directly measured or observed by the nurse.

Choice b reason:
Introspective data is not a commonly used term in healthcare. Introspection generally refers to the examination of one's own conscious thoughts and feelings, which in the context of healthcare, can be part of subjective data as it is reported by the patient.

Choice c reason:
Subjective data consists of information that is reported by the patient, including feelings, perceptions, and concerns. It is called 'subjective' because it is based on the patient's personal experience and cannot be independently verified by the nurse. In this case, the patient's report of feeling anxious, nauseated, and hot is considered subjective data.

Choice d reason:
Reflective data is not a standard term in healthcare documentation. Reflection is a process of personal thought and does not pertain to the clinical data gathered during a patient assessment.

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What cranial nerve is responsible for the taste sensation of the posterior third of the tongue?

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Naxlex Comprehensive Predictor Exams

A 45-year-old African-American client comes to the clinic complaining of fatigue, thirst, and frequent urination. During the physical exam, the nurse notices areas of linear hyperpigmentation around the neck and in the axillae (Acanthosis Nigricans). What would the nurse do next?

Correct Answer is A

Explanation

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Correct Answer is C

Explanation

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