The nurse prepares to assess the patient's cranial nerves. Which tool is necessary to assess cranial nerve (CN) III (oculomotor)?
Otoscope
Penlight
Cotton ball
Lavender
The Correct Answer is B
A. An otoscope is used to examine the ear canal and tympanic membrane, not to assess cranial nerve III. This tool is more relevant for assessing cranial nerve VIII (vestibulocochlear), which is responsible for hearing and balance.
B. A penlight is used to assess CN III (oculomotor) by evaluating the pupil's response to light and the ability to move the eye. This nerve controls most of the eye's movements, including constriction of the pupil in response to light.
C. A cotton ball is used to test the sensory function of cranial nerve V (trigeminal), which is responsible for facial sensation. It is not used for assessing CN III.
D. Lavender or other scents may be used to test CN I (olfactory), responsible for the sense of smell, but it is not related to CN III, which governs eye movements and pupil reactions.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Stomatitis is a common side effect of radiation therapy for oral cancer, and while it requires management, it is not immediately life-threatening.
B. Stridor indicates potential airway obstruction, which is a critical and urgent condition that requires immediate intervention, making it the greatest concern among the options presented.
C. Nausea is a typical side effect of cancer treatment but is usually manageable and not considered an immediate threat.
D. Xerostomia, or dry mouth, is another common side effect of radiation to the head and neck, but it is not as urgent as the risk of airway compromise indicated by stridor.
Correct Answer is ["2"]
Explanation
Given:
- Prescribed dosage: 40 mg
- Dosage per tablet: 20 mg
Calculation:
- Number of tablets = Prescribed dosage / Dosage per tablet
- Number of tablets = 40 mg / 20 mg
- Number of tablets = 2 tablets
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