Nokea
A nurse is caring for a client scheduled for general anesthesia. Which assessment finding would contraindicate the use of atropine in this client?
- A. Detached retina
- B. Cerebrovascular accident
- C. Cataracts
- D. Glaucoma
Correct Answer: D
Rationale: Cholinergic blockers (such as atropine) are often used preoperatively to dry up secretions. Use of these drugs results in dilation of pupils, which increases intraocular pressure (IOP). Clients with glaucoma should avoid use of atropine in an effort to maintain normal range of IOP. Detached retina, CVA, and cataracts are insignificant in the use of cholinergic blockers.
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Which technique would be most beneficial for ambulation of a client who is visually impaired?
- A. Speak before touching the client.
- B. Provide a detailed description of the room and walkway.
- C. Allow client to follow the nurse's lead.
- D. Provide the client with a guide dog.
Correct Answer: C
Rationale: A blind person feels more secure and safe when assisted by someone who is sighted. The nurse should walk slightly ahead while allowing the client to hold onto the nurse's upper arm or elbow. Speaking before touching is an important care action in dealing with clients who have impaired vision but does not assist in ambulation. Providing a detailed description of the room may allow the client an image of the surroundings but is not as helpful in initial ambulation. Finding a perfect fit between guide dog and client is a lengthy process and should be pursued upon request of client.
A nurse is caring for a client who has undergone enucleation. What complication of enucleation should be addressed by the nurse?
- A. Hypotension
- B. Nausea and vomiting
- C. Hemorrhage
- D. Pneumonia
Correct Answer: C
Rationale: The nurse should take measures to prevent hemorrhage, a complication of enucleation, by applying a pressure dressing. Nausea and vomiting are common side effects of surgery. Enucleation does not increase risk of developing hypotension or pneumonia.
An eighth-grade client visits the school nurse and reports having been to an eye doctor who identified an astigmatism and described it as a condition in which the eyeball is not shaped correctly. The client asks the nurse why both eyes look alike in the mirror if this is the case. What is the nurse's best response?
- A. Astigmatism means that the very front part of the eye is shaped differently than the very front part in most eyes.
- B. Astigmatism means that the overall shape of the eye resembles an olive more than most eyes.
- C. Astigmatism means that the inside of the eye is shaped differently than the inside of most eyes.
- D. Astigmatism means that the overall shape of your eye is shorter than most eyes.
Correct Answer: A
Rationale: Astigmatism is visual distortion caused by an irregularly shaped cornea. When the overall shape of the eye is like an olive, or more oblong, it results in myopia, not astigmatism, although both conditions may be present at once. The inside of the eye is not shaped differently in the client with an astigmatism. The overall shape of the eye being shorter results in hyperopia, not astigmatism.
A client with chronic open-angle glaucoma is now presenting with eye pain and intraocular pressure of 50 mm Hg. An immediate iridotomy is scheduled. Which explanation by the nurse describes the desired effects of this procedure?
- A. Reverse optic nerve damage
- B. Restore vision
- C. Improve outflow drainage
- D. To relieve pain
Correct Answer: C
Rationale: Laser iridotomy or standard iridotomy is a surgical procedure that provides additional outlet drainage of aqueous humor. This is done to lower the IOP as quickly as possible since permanent vision loss can occur in 1 to 2 days. Once optic nerve damage occurs, it cannot be reversed, and vision is not restored. Pain that occurs with rising IOP will be controlled once pressure is lowered through improved outflow drainage.
A nurse is assessing a client for a fracture to the bony orbit. What would the nurse document if the assessment for fracture was positive?
- A. There is excessive tearing.
- B. The client's vision is blurred.
- C. A rust ring is seen around the pupil.
- D. The client has diplopia.
Correct Answer: D
Rationale: If the bony orbit is fractured, the eyes may appear asymmetric, and the client has diplopia or double vision. Excessive tearing, presence of rust rings, or blurry vision do not indicate a fractured bony orbit.