Which of the following tests would be most appropriate for the nurse to use when assessing motor function of the trigeminal nerve?

Assess dilatation of pupils with direct light.

Ask the client to differentiate between sharp and dull sensations on the client's face.

Palpates temporal and masseter muscles while client clenches teeth.

Have the client smile, frown, and wrinkle the forehead.

Answer and Explanation

The Correct Answer is C

A.   This test assesses the function of the oculomotor nerve (CN III), not the trigeminal nerve. The oculomotor nerve controls the constriction and dilation of the pupils, as well as some eye movements. Therefore, this choice is not appropriate for assessing the trigeminal nerve.
B.   This test assesses the sensory function of the trigeminal nerve (CN V). The trigeminal nerve provides sensation to the face, and testing the ability to differentiate between sharp and dull sensations evaluates

the sensory component of this nerve. However, this test does not assess the motor function of the trigeminal nerve.
C.   This test evaluates the motor function of the trigeminal nerve. The trigeminal nerve controls the muscles involved in chewing, including the temporal and masseter muscles. By palpating these muscles while the client clenches their teeth, the nurse assesses the strength and function of these muscles, which are innervated by the trigeminal nerve. This is a direct test of motor function for CN V.
D.   This test assesses the function of the facial nerve (CN VII), which controls the muscles of facial expression. It is not relevant for assessing the trigeminal nerve, which is involved in both sensory functions of the face and motor functions related to chewing.

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Correct Answer is B

Explanation

A. Bursitis is the inflammation of the bursa, a small fluid-filled sac that reduces friction between bones and soft tissues. It typically causes localized pain and tenderness in the area of the bursa, often in the shoulders, elbows, or hips.

B. Meningitis is an infection or inflammation of the protective membranes covering the brain and spinal cord (the meninges). It often presents with symptoms such as fever, headache, neck stiffness, and photophobia. The neck stiffness, particularly difficulty flexing the head forward (nuchal rigidity), is a classic sign.
C. Spondylitis refers to inflammation of the spine. It can present with chronic back pain and stiffness but is typically associated with long-term symptoms rather than acute systemic symptoms like fever and chills. Conditions such as ankylosing spondylitis can cause chronic back pain and stiffness but are less likely to present with acute fever and headache.
D. Arthritis is inflammation of the joints and can cause pain, swelling, and stiffness in the affected joints. While arthritis can affect the neck (cervical spine arthritis), it typically does not present with systemic symptoms such as fever and chills unless there is an associated infection or inflammatory process.

A. Coma B. Stupor C. Lethargy D. Obtunded

Correct Answer is D

Explanation

A. Coma is a state of profound unconsciousness where the patient cannot be awakened and does not respond to any external stimuli. The patient is completely unresponsive, with no eye opening or verbal responses.
B. Stupor is a state where the patient is almost completely unresponsive and can only be awakened by vigorous or painful stimuli. When aroused, they may only give brief, non-purposeful responses.
C. Lethargy is characterized by drowsiness and decreased alertness. The patient may fall asleep easily but can be awakened and will respond appropriately to stimuli. They might appear sluggish or tired.
D. Obtunded refers to a state where the patient has a reduced level of consciousness and responsiveness. They may be difficult to arouse, respond slowly to stimuli, and have a dulled sense of awareness. They need increased stimulation to achieve a response.

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Which of the following tests would be most appropriate for the nurse to use when assessing motor function of the trigeminal nerve?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

Correct Answer is B

Explanation

In the Neuro ICU (intensive care unit) while performing a neurological assessment of the patient the nurse noticed the patient: patient opens eyes, looks at you, responds slowly, and is somewhat confused. What level of consciousness (LOC) is this patient presenting?

Correct Answer is D

Explanation

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