A nurse is performing a physical examination on a patient. When the patient is asked to protrude his tongue, the nurse noticed a deviation from the midline to the right side. This is related to a lesion of:

CN V

CN XII

CN VII

CN I

Answer and Explanation

The Correct Answer is B

A.   The trigeminal nerve (CN V) primarily controls sensation in the face and the muscles of mastication (chewing). While it is crucial for sensory input and motor control related to chewing, it does not directly control the movement of the tongue.
B.   The hypoglossal nerve (CN XII) is responsible for controlling the movements of the tongue. A lesion of CN XII can cause the tongue to deviate towards the side of the weakness or damage. This is because the hypoglossal nerve innervates the muscles of the tongue, and damage to it results in weakness of the muscles on the affected side, causing the tongue to deviate towards that side when protruded.
C.   The facial nerve (CN VII) controls the muscles of facial expression. While it affects facial movements and expressions, it does not control the movements of the tongue. A lesion in CN VII would typically result in facial asymmetry or weakness rather than tongue deviation.
D.   The olfactory nerve (CN I) is responsible for the sense of smell. It does not have any role in controlling tongue movement. Therefore, a lesion in CN I would not cause deviation of the tongue.

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Correct Answer is B

Explanation

A. The obturator sign is used to assess for appendicitis, not meningitis. To perform this test, the patient’s right knee is flexed to 90 degrees, and the nurse rotates the hip internally and externally. Pain during this maneuver can indicate irritation of the obturator muscle, which is associated with inflammation of the appendix.

B. The Brudzinski sign is a clinical test used to assess meningeal irritation. When the patient’s neck is passively flexed while lying supine, a positive Brudzinski sign is indicated if the patient involuntarily flexes their knees and hips in response to neck pain. This sign is often seen in meningitis as a result of irritation of the meninges.
C. The Phalen sign is used to diagnose carpal tunnel syndrome. The patient flexes their wrists and holds the position for a period of time to see if symptoms of numbness or tingling appear in the fingers, which would indicate median nerve compression at the wrist. This sign is unrelated to meningitis.
D. The Tinel sign is also used to diagnose carpal tunnel syndrome and other peripheral nerve issues. It involves tapping on the nerve (such as the median nerve at the wrist) to see if it causes tingling or a “pins and needles” sensation along the nerve’s distribution. Like the Phalen sign, it is not related to meningitis.

A. Verbal respond B. Motor respond C. Pupillary responds D. Gag Reflex E. Eye Opening

Correct Answer is ["A","B"]

Explanation

A. The verbal response is one of the three components of the Glasgow Coma Scale. It assesses the patient's ability to speak and respond appropriately to questions, indicating their level of consciousness. Responses are scored based on clarity, coherence, and relevance.
B. Motor response is another component of the Glasgow Coma Scale. It evaluates the patient’s ability to move in response to stimuli, including purposeful movements, localizing pain, or abnormal posturing. The motor response helps gauge the patient’s level of consciousness and neurological function.
C. Pupillary response refers to how the pupils react to light and changes in size. While important in neurological assessments, it is not one of the three components of the Glasgow Coma Scale. Pupillary response is assessed separately from the GCS but provides additional information about brain function and potential injury.
D. The gag reflex is a protective mechanism to prevent choking and is assessed by stimulating the back of the throat. It is not included in the Glasgow Coma Scale. The GCS focuses on eye opening, verbal response, and motor response rather than reflexes.
E. Eye opening is the third component of the Glasgow Coma Scale. It assesses the patient’s ability to open their eyes spontaneously or in response to stimuli. This component helps determine the level of consciousness and alertness.

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A nurse is performing a physical examination on a patient. When the patient is asked to protrude his tongue, the nurse noticed a deviation from the midline to the right side. This is related to a lesion of:

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

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Correct Answer is B

Explanation

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Correct Answer is ["A","B"]

Explanation

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