The nurse documents that the client's pupillary reaction is PERRLA. What is the "A" in this assessment describing about the client's eyes?
Changes in peripheral vision in response to light
Involuntary blinking in the presence of bright light
Pupillary dilation when looking at a near object
Pupillary constriction when looking at a near object
The Correct Answer is D
A) Changes in peripheral vision in response to light: While peripheral vision is important in a comprehensive eye assessment, it is not specifically evaluated through the PERRLA acronym. PERRLA focuses on how the pupils respond to light and accommodation, not on peripheral vision changes.
B) Involuntary blinking in the presence of bright light: Involuntary blinking is part of a reflex action known as the blink reflex, which helps protect the eyes from bright lights and foreign objects. However, this response is not what the "A" in PERRLA refers to, which is more specifically about pupillary reactions to focus.
C) Pupillary dilation when looking at a near object: When focusing on a near object, the pupils actually constrict rather than dilate. This process, known as accommodation, is important for clear vision at close distances but does not pertain to the dilation of pupils.
D) Pupillary constriction when looking at a near object: The "A" in PERRLA stands for accommodation, which specifically refers to the pupils constricting when a person looks at a nearby object. This reaction helps the eyes focus properly and is a normal finding in a healthy neurological assessment. Thus, option D accurately describes the "A" in the PERRLA 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 A
Explanation
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.