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 C
Explanation
A) Anterior to the elbow: This term describes a location in front of the elbow. While it indicates a direction, it does not specifically address the vertical relationship of the discomfort in relation to the elbow. Since the client described discomfort "above" the elbow, this term is not the most accurate choice.
B) Distal to the elbow: The term "distal" refers to a location that is farther away from the trunk of the body or point of reference. Given that the discomfort is described as being above the elbow, this term is incorrect, as it would imply the discomfort is located toward the hand rather than toward the shoulder.
C) Proximal to the elbow: This term correctly indicates a location closer to the trunk of the body and specifically suggests that the discomfort is situated above the elbow, making it the most appropriate medical terminology to use in this context. It accurately reflects the relationship of the discomfort to the elbow.
D) Inferior to the elbow: "Inferior" refers to a location below another point of reference. Since the discomfort is described as above the elbow, this terminology would not apply and would misrepresent the location of the client’s discomfort.
Correct Answer is B
Explanation
A) Posterior superior iliac spine: While this landmark is useful for certain assessments, it is more commonly used to identify pelvic alignment rather than symmetry of the spine itself.
B) Iliac crests: The iliac crests serve as an important anatomical landmark for assessing symmetry in the posterior spine. By comparing the heights of the iliac crests on both sides, the nurse can determine any asymmetry in the pelvis and, by extension, the spine, as uneven heights may indicate spinal deformities.
C) Paravertebral muscles: While assessing the paravertebral muscles can provide information about muscle tone and potential asymmetries, they are not direct landmarks for evaluating overall spinal symmetry.
D) Twelfth thoracic vertebrae: Although identifying specific vertebrae is important for certain assessments, the twelfth thoracic vertebra is not commonly used as a primary landmark for assessing symmetry in the spine. It is more useful for locating the general area of the thoracic spine.