During the assessment of a client's head and neck, the nurse observes the client's facial expressions and the face for symmetry and movement. Which cranial nerve is the nurse assessing?
VII
V
III
VI
The Correct Answer is A
A) VII: The facial nerve (cranial nerve VII) is responsible for controlling the muscles of facial expression. By assessing facial symmetry and movement, the nurse evaluates the integrity and function of this nerve, which is crucial for activities such as smiling, frowning, and raising eyebrows.
B) V: The trigeminal nerve (cranial nerve V) is primarily responsible for sensation in the face and motor functions such as chewing. While it plays a role in facial movement, it does not specifically assess facial expressions.
C) III: The oculomotor nerve (cranial nerve III) controls eye movement and pupil constriction. It does not directly influence facial expressions, so it is not the nerve being assessed in this context.
D) VI: The abducens nerve (cranial nerve VI) is responsible for lateral eye movement. It is unrelated to facial expression or symmetry and is not the focus of this assessment.
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Correct Answer is D
Explanation
A) Inflammation of the lamina of the involved vertebra: While inflammation can contribute to pain, it is not the primary cause in the context of a herniated disc. The pain associated with a herniated disc is typically related to nerve compression rather than inflammation of the lamina itself.
B) Shifting of two adjacent vertebrae out of alignment: This describes a different condition, such as spondylolisthesis. A herniated disc primarily involves the displacement of disc material, rather than a significant misalignment of the vertebrae.
C) Increased pressure of cerebral spinal fluid within the vertebral column: Increased cerebrospinal fluid pressure is not typically associated with herniated discs and does not directly cause the pain related to this condition.
D) Compression of the spinal cord by the extruding disc: This is the most accurate explanation for the patient's pain. A cervical herniated disc can protrude and compress nearby nerve roots or the spinal cord itself, leading to significant pain, weakness, and other neurological symptoms. This compression is the primary cause of pain in patients with this diagnosis.
Correct Answer is D
Explanation
A) Splint and immobilize the extremity: While immobilizing the injured extremity is important to prevent further injury, it should follow an initial assessment of blood flow and nerve function to ensure there are no vascular or neurological compromises.
B) Apply an ice pack to the ankle: Applying ice can help reduce swelling and alleviate pain. However, it is essential first to assess the circulation to the limb to ensure that applying ice will not worsen any underlying issues.
C) Encourage weight bearing and ambulation: Encouraging weight bearing on a potentially injured ankle can lead to further damage and is not appropriate. The priority is to assess the injury and understand its severity.
D) Assess pulse, color, temperature, and capillary refill: This step is crucial as it evaluates the vascular status of the limb. Assessing these factors helps identify any potential complications, such as compartment syndrome or inadequate blood flow, and guides further management of the injury.