Which of the following cranial nerves is affected in an individual who is experiencing pain and tingling of the face?
Trochlear (IV)
Trigeminal (V)
Glossopharyngeal (IX)
Abducens (VI)
The Correct Answer is B
A. The trochlear nerve (IV) controls the superior oblique muscle of the eye and is not responsible for sensation or pain in the face.
B. The trigeminal nerve (V) is responsible for sensation in the face, including pain, tingling, and touch. It also controls the muscles of mastication. A lesion or irritation of this nerve can lead to symptoms like pain and tingling in the face.
C. The glossopharyngeal nerve (IX) primarily controls the sensation in the throat and the taste sensation on the back of the tongue. It is not responsible for facial pain or tingling.
D. The abducens nerve (VI) controls the lateral rectus muscle of the eye, responsible for eye movement, but does not contribute to facial sensation.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Low blood pressure is not typically associated with elevated potassium levels. While severe hyperkalemia can impact the cardiovascular system, it does not directly cause low blood pressure as a primary symptom.
B. Rapid respirations are generally associated with conditions like acidosis or respiratory distress but are not a primary consequence of elevated potassium levels.
C. Elevated potassium levels are not typically associated with constipation. In fact, hyperkalemia can cause gastrointestinal symptoms such as nausea or abdominal cramping, but constipation is more commonly linked to conditions like low potassium levels (hypokalemia).
D. Elevated potassium levels, or hyperkalemia, can cause cardiac irregularities such as arrhythmias, which can be life-threatening if not managed promptly. This is the most significant and direct effect of high potassium levels in the blood.
Correct Answer is D
Explanation
A. Expiratory reserve volume is the amount of air that can be exhaled forcefully after normal expiration. It does not refer to the air moved in and out during the normal respiratory cycle.
B. Residual volume is the amount of air remaining in the lungs after a forced exhalation. It cannot be exhaled and is not part of the normal respiratory cycle.
C. Vital capacity is the maximum amount of air that can be exhaled after a maximum inhalation, which includes tidal volume, expiratory reserve volume, and inspiratory reserve volume. It does not specifically refer to the air moved in and out during normal breathing.
D. Tidal volume refers to the amount of air that is moved into and out of the lungs during a normal, relaxed breath. It is the term that directly describes the air exchanged during the normal respiratory cycle.
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