The nurse is preparing to measure the visual acuity of a client. The nurse should recognize that which of the following cranial nerve should be assessed:
VI
V
II
III
The Correct Answer is C
A. VI
Cranial Nerve VI is the Abducent Nerve, which controls the movement of the lateral rectus muscle, allowing the eye to move laterally (abduct). Dysfunction of this nerve can cause difficulty in moving the eye outward.
B. V
Cranial Nerve V is the Trigeminal Nerve. It has both sensory and motor functions. Sensory functions include providing sensation to the face, sinuses, and teeth. Motor functions include controlling the muscles used for chewing (mastication).
C. II
Cranial Nerve II is the Optic Nerve. It is purely a sensory nerve responsible for vision. The optic nerve carries visual information from the retina of the eye to the brain.
D. III
Cranial Nerve III is the Oculomotor Nerve. It is primarily a motor nerve but also has some autonomic functions. It controls most of the eye movements (except lateral movement controlled by VI) and regulates the size of the pupil and the shape of the lens in the eye for focusing.

Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. When part of the lung is obstructed or collapsed: This statement is accurate. Unequal chest expansion can occur when part of the lung is obstructed or collapsed, preventing the affected area from expanding normally during inhalation.
B. When bulging of the intercostal spaces is present: This statement is not accurate. Unequal chest expansion typically refers to decreased expansion on one side, not bulging of intercostal spaces.
C. In an obese patient: This statement is not accurate. Obesity can affect breathing patterns and lung function, but it is not the primary cause of unequal chest expansion.
D. When accessory muscles are used to augment respiratory effort: This statement is not accurate. The use of accessory muscles to augment respiratory effort can be a sign of respiratory distress, but it doesn't directly cause unequal chest expansion. Unequal expansion is more indicative of specific lung conditions or issues with lung mechanics.
Correct Answer is A
Explanation
A. Consists of two lobes.
This statement is correct. The left lung consists of two lobes: the upper lobe and the lower lobe. The right lung, not the left lung, has three lobes: upper, middle, and lower lobes.
B. Primarily consists of an upper lobe on the posterior chest.
This statement is not accurate. The upper lobe of the left lung is present in the anterior and posterior parts of the chest. It is not limited to the posterior chest.
C. Is shorter than the right lung because of the underlying stomach.
This statement is not correct. The left lung is not shorter due to the underlying stomach. The left lung is slightly smaller than the right lung to accommodate the space for the heart, but this size difference is not due to the stomach.
D. Is divided by the horizontal fissure.
This statement is not accurate. The left lung is not divided by the horizontal fissure. The horizontal fissure is a feature of the right lung, not the left lung. The left lung is divided by the oblique fissure into the upper and lower lobes

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