Which cranial nerves are involved in eye movements? Select all that apply.

Trochlear

Optic

Oculomotor

Abducens

Facial

Answer and Explanation

Correct Answer : A,C,D

A) Trochlear: The trochlear nerve (CN IV) is responsible for innervating the superior oblique muscle, which helps control the downward and inward movement of the eye.
B) Optic: The optic nerve (CN II) is primarily involved in vision and visual acuity, not in the movement of the eye. It transmits visual information from the retina to the brain.
C) Oculomotor: The oculomotor nerve (CN III) controls most of the extraocular muscles, including those responsible for eye movement (superior rectus, inferior rectus, medial rectus, and inferior oblique) and also controls pupil constriction.
D) Abducens: The abducens nerve (CN VI) controls the lateral rectus muscle, which is responsible for the outward movement of the eye.
E) Facial: The facial nerve (CN VII) controls the muscles of facial expression and is not involved in eye movements.

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Correct Answer is C

Explanation

A) Hypoxia: Although the client's oxygen saturation is slightly decreased at 95% on room air, it is not critically low. Hypoxia could be a concern, but it is secondary to other more immediate issues, such as hypotension, that might be causing the low oxygen saturation.
B) Anemia: The client’s hemoglobin and hematocrit levels are low, indicating anemia. While anemia is a significant concern, it does not pose an immediate threat compared to hypotension, which can lead to more severe complications if not addressed promptly.
C) Hypotension: The client’s blood pressure is notably low at 82/58 mm Hg. Hypotension can lead to inadequate perfusion of vital organs and may be a result of or contribute to other issues such as sepsis or significant blood loss. Immediate attention to correcting hypotension is crucial to prevent further complications.
D) Pneumonia: The client presents with symptoms suggestive of pneumonia, including a productive cough, fever, and elevated white blood cell count. While pneumonia is a critical condition that requires treatment, addressing hypotension is a more urgent priority as it directly impacts the client's circulatory stability and overall well-being.

A. Multiple myeloma B. Cervical cancer C. Ovarian cancer D. Hodgkin's lymphoma

Correct Answer is B

Explanation

A) Multiple myeloma: The HPV vaccine is not related to the prevention of multiple myeloma, which is a type of cancer that affects plasma cells in the bone marrow. Prevention strategies for multiple myeloma focus on managing risk factors, but HPV vaccination is not one of these strategies.
B) Cervical cancer: The HPV vaccine is specifically designed to prevent human papillomavirus (HPV) infection, which is a major risk factor for cervical cancer. By protecting against HPV, the vaccine helps prevent the development of cervical cancer, making it a form of primary prevention for this type of cancer.
C) Ovarian cancer: HPV vaccination is not related to the prevention of ovarian cancer. Ovarian cancer prevention strategies do not include the HPV vaccine, as HPV primarily affects the cervical region and some other genital areas, but not the ovaries.
D) Hodgkin's lymphoma: HPV vaccination is not used to prevent Hodgkin's lymphoma, a type of cancer that affects the lymphatic system. The prevention of Hodgkin's lymphoma typically involves addressing general cancer risk factors and monitoring for early symptoms, but it does not include the HPV vaccine.

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Which cranial nerves are involved in eye movements? Select all that apply.

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Naxlex Comprehensive Predictor Exams

Correct Answer is C

Explanation

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Correct Answer is B

Explanation

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