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The client's eyes, tested with the use of a Snellen chart, show 20/40 vision in the right eye and 20/30 in the left eye. How should the nurse interpret these results?
- A. The client has elevated intraocular pressure in both eyes.
- B. The client needs testing for glaucoma with a tonometer.
- C. The left eye is closer to normal vision than the right eye.
- D. The client has errors of refraction indicating astigmatism.
Correct Answer: C
Rationale: The Snellen chart is used to test distance vision. The numbers recorded indicate that at 20 feet (the first number) the client is able to read what a person with normal vision can read at another distance (second number). The left eye's vision recorded as 20/30 has better vision than the right eye with vision recorded as 20/40. The Snellen chart is not used to measure intraocular pressure, suggest glaucoma testing, or determine astigmatism.
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The nurse is caring for a client admitted with Guillain-Barré syndrome. On day three of hospitalization, his muscle weakness worsens, and he is no longer able to stand with support. He is also having difficulty swallowing and talking. The priority in his nursing care plan should be to prevent which of the following?
- A. Aspiration pneumonia
- B. Decubitus ulcers
- C. Bladder distention
- D. Hypertensive crisis
Correct Answer: A
Rationale: Difficulty swallowing increases the risk of aspiration pneumonia, making it the priority in Guillain-Barré syndrome.
An adult man fell off a ladder and hit his head. His wife rushed to help him and found him unconscious. After regaining consciousness several minutes later, he was drowsy and had trouble staying awake. He is admitted to the hospital for evaluation. When the nurse enters the room, he is sleeping. While caring for the client, the nurse finds that his systolic blood pressure has increased, his pulse has decreased, and his temperature is slightly elevated. What does this suggest?
- A. Increased cerebral blood flow
- B. Respiratory depression
- C. Increased intracranial pressure
- D. Hyperoxygenation of the cerebrum
Correct Answer: C
Rationale: Increased systolic blood pressure, decreased pulse, and elevated temperature suggest increased intracranial pressure (Cushing's triad) post-head injury.
The female client tells the clinic nurse she is going on a seven (7)-day cruise and is worried about getting motion sickness. Which information should the nurse discuss with the client?
- A. Make an appointment for the client to see the health-care provider.
- B. Recommend getting an over-the-counter scopolamine patch.
- C. Discourage the client from taking the trip because she is worried.
- D. Instruct the client to lie down and the motion sickness will go away.
Correct Answer: B
Rationale: A scopolamine patch prevents motion sickness effectively. HCP appointments, trip discouragement, and lying down are less practical.
Which assessment technique should the nurse use to assess the client's optic nerve?
- A. Have the client identify different smells.
- B. Have the client discriminate between sugar and salt.
- C. Have the client read the Snellen chart.
- D. Have the client say 'ah' to assess the rise of the uvula.
Correct Answer: C
Rationale: The optic nerve (cranial nerve II) is assessed by visual acuity tests like the Snellen chart. Smells (olfactory), taste (facial/glossopharyngeal), and uvula movement (vagus) involve other nerves.
The nurse is caring for the client with macular degeneration. Which illustration should the nurse associate with the field disturbance seen by the client?
- A. Limited peripheral vision is shown in illustration 1.
- B. Distorted central vision as seen in illustration 2.
- C. Illustration 3 shows a normal visual field.
- D. Illustration 4 shows a blurred visual field.
Correct Answer: B
Rationale: Distorted central vision as seen in illustration 2 is characteristic of macular degeneration. The macula is the area of the fundus responsible for central vision. When the cells in the macula have been damaged, central vision is impaired. Illustration 1 shows glaucoma, 3 shows normal vision, and 4 shows blurred vision from various conditions.