A nurse documents that the client has a normal pupillary light reflex. The nurse should recognize that this reflex indicates which of the following?
The eyes converge to focus on the light.
The eye focuses the image in the center of the pupil.
Dilation of both pupils occurs in response to bright light.
Constriction of both pupils occurs in response to bright light.
The Correct Answer is D
A. The eyes converge to focus on the light.
This statement refers to the convergence reflex, where both eyes move medially (towards each other) to maintain single binocular vision when focusing on a near object. It is not related to the pupillary light reflex, which involves changes in pupil size in response to light.
B. The eye focuses the image in the center of the pupil.
This choice does not accurately describe the pupillary light reflex. The pupillary light reflex involves constriction of the pupil in response to light, not focusing an image in the center of the pupil.
C. Dilation of both pupils occurs in response to bright light.
This statement is incorrect. In response to bright light, the pupils should constrict, not dilate. Dilation of pupils in bright light could indicate an abnormal response, such as in cases of certain neurological conditions or drug use.
D. Constriction of both pupils occurs in response to bright light.
This choice is correct. In the pupillary light reflex, both pupils constrict when exposed to bright light. This response is a protective mechanism to prevent excessive light from entering the eyes, ensuring optimal visual acuity.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Fifth intercostal space, left of the midclavicular line: This placement is used to auscultate the mitral valve, which is best heard at the apex of the heart. The mitral valve sounds are typically heard around the fifth intercostal space, midclavicular line.
B. Left lower sternal border: This placement is used to auscultate the tricuspid valve, which is best heard at the lower left sternal border.
C. Second left intercostal space: This is the correct placement for auscultating the pulmonic valve. The pulmonic valve sounds are best heard at the second left intercostal space, which is close to the upper left sternal border.
D. Second right intercostal space: This placement is used to auscultate the aortic valve, which is best heard at the second right intercostal space, close to the upper right sternal border.
Correct Answer is A
Explanation
A. Frenulum:
The frenulum is a thin band of tissue in the mouth that connects the tongue to the floor of the mouth. It aids in the tongue's movement and flexibility during speaking and swallowing.
B. Palate:
The palate refers to the roof of the mouth. It has two parts: the hard palate (at the front, made of bone) and the soft palate (at the back, made of muscle). The palate plays a crucial role in speech and swallowing.
C. Uvula:
The uvula is a small, fleshy extension at the back of the soft palate in the mouth. It participates in various functions, including speech articulation, preventing food from entering the nasal cavity during swallowing, and producing certain sounds.
D. Papillae:
Papillae are small, raised structures on the tongue that contain taste buds. They are responsible for detecting different tastes: sweet, salty, sour, bitter, and umami (savory). Papillae give the tongue its rough texture.
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