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 A
Explanation
A. Requesting a prescription to culture the wound is the priority action because the presence of redness, warmth, and serosanguinous drainage could indicate an infection that needs to be confirmed and treated appropriately.
B. While antibiotics may be necessary if an infection is confirmed, it is crucial to first determine the presence of infection through culturing the wound.
C. Assuring the client that these findings are normal may delay necessary intervention if an infection is present, which could worsen the client's condition.
D. Cleaning the wound with sterile normal saline may be appropriate as part of wound care, but it does not address the underlying concern of possible infection and would not be prioritized over obtaining a culture.
Correct Answer is ["12"]
Explanation
- Calculate the dilution factor of the insulin solution:
- Dilution factor = Total volume / Insulin units
- Dilution factor = 150 mL / 75 units
- Dilution factor = 2 mL/unit
- Determine the volume of the insulin solution needed to deliver 6 units/h:
- Volume = Desired dosage * Dilution factor
- Volume = 6 units/h * 2 mL/unit
- Volume = 12 mL/h
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