The nurse asks the patient to stick out their tongue while performing an assessment of the mouth and throat. The nurse knows this provides information about what cranial nerve?

XII

VII

Answer and Explanation

The Correct Answer is C

A. XI: Cranial nerve XI, also known as the accessory nerve, is responsible for innervating the sternocleidomastoid and trapezius muscles, which are involved in shoulder and head movement. It does not play a role in tongue movement.

B. V: Cranial nerve V, the trigeminal nerve, is responsible for sensation in the face and motor functions such as biting and chewing. While it is important for overall oral sensation, it does not control tongue movement.

C. XII: Cranial nerve XII, the hypoglossal nerve, is responsible for motor control of the tongue muscles. When the patient sticks out their tongue, the nurse can assess the function of this nerve by observing the tongue's position, movement, and any signs of weakness or atrophy, which can indicate nerve damage.

D. VII: Cranial nerve VII, the facial nerve, is responsible for the muscles of facial expression and taste sensations from the anterior two-thirds of the tongue. Although it contributes to some oral functions, it is not directly involved in the movement of the tongue itself.

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Correct Answer is D

Explanation

A. Bronchial breath sounds that are normal in that location: Bronchial breath sounds are high-pitched and louder, with expiration lasting longer than inspiration. They are normally heard over the trachea and not over the posterior lower lobes. If bronchial sounds are heard in the lower lung fields, it may indicate lung consolidation, such as in pneumonia.

B. Bronchovesicular breath sounds that are normal in that location: Bronchovesicular breath sounds are moderate in pitch and intensity, with inspiration and expiration being roughly equal in length. These sounds are typically heard over the major bronchi, near the sternum anteriorly and between the scapulae posteriorly, making them unlikely to be present in the posterior lower lobes.

C. Normal sounds auscultated over the trachea: Breath sounds heard over the trachea are expected to be bronchial, which are loud and high-pitched, with expiration lasting longer than inspiration. The low-pitched, soft sounds described do not match the normal tracheal breath sounds.

D. Vesicular breath sounds that are normal in that location: Vesicular breath sounds are soft and low-pitched, with inspiration lasting longer than expiration. They are the normal breath sounds heard over most of the peripheral lung fields, including the posterior lower lobes, confirming that these findings are normal.

A. Thyroid B. Parathyroid C. Adrenal D. Parotid

Correct Answer is A

Explanation

A. Thyroid: The thyroid gland produces thyroxine (T4) and triiodothyronine (T3), which are essential hormones that regulate metabolism, growth, and development. An elevated T4 level typically indicates hyperthyroidism or other thyroid disorders, making it necessary to assess the function and health of the thyroid gland.

B. Parathyroid: The parathyroid glands regulate calcium levels in the blood through the secretion of parathyroid hormone (PTH). They do not produce T4 or directly influence thyroid hormone levels, so assessing the parathyroid glands would not be relevant in the context of elevated T4.

C. Adrenal: The adrenal glands produce hormones such as cortisol, aldosterone, and adrenaline. While adrenal function can impact overall hormonal balance in the body, they are not directly involved in the production of thyroxine (T4), making them unrelated to the assessment for elevated T4 levels.

D. Parotid: The parotid glands are major salivary glands that secrete saliva. They do not play a role in thyroid hormone production or regulation, so assessing the parotid glands would not be appropriate when investigating elevated T4 levels.

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The nurse asks the patient to stick out their tongue while performing an assessment of the mouth and throat. The nurse knows this provides information about what cranial nerve?

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Naxlex Comprehensive Predictor Exams

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Correct Answer is D

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Correct Answer is A

Explanation

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