A nurse is providing teaching to a group of clients about the changes that occur when clients experience cataracts. Which of the following statements should the nurse include in the teaching?
"Vision changes occur when pressure in the eye is increased due to a decrease of aqueous humor."
"Vision changes occur when blood vessels leak fluid or blood under a portion of the retina."
"Vision changes occur when the cloudy lens alters the passage of light through the eye."
"Vision changes occur when retinal tissue pulls away from the blood vessels in the eye."
The Correct Answer is C
A) "Vision changes occur when pressure in the eye is increased due to a decrease of aqueous humor." This statement describes a mechanism associated with glaucoma, not cataracts. In cataracts, vision changes occur due to the opacity or cloudiness of the lens, not changes in intraocular pressure.
B) "Vision changes occur when blood vessels leak fluid or blood under a portion of the retina." This statement describes a mechanism associated with retinal diseases like diabetic retinopathy, not cataracts. In cataracts, the lens becomes cloudy, affecting the passage of light through the eye.
C) "Vision changes occur when the cloudy lens alters the passage of light through the eye." This statement is correct. Cataracts cause the lens of the eye to become cloudy, which interferes with the passage of light through the eye. This results in vision changes such as blurred vision, glare, and difficulty seeing in low light conditions.
D) "Vision changes occur when retinal tissue pulls away from the blood vessels in the eye." This statement describes a mechanism associated with retinal detachment, not cataracts. In cataracts, the lens becomes opaque, but the retinal tissue remains intact.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Tonometer intraocular pressure reading 8 mm Hg (Option A): A low intraocular pressure reading may indicate a detached retina. In a detached retina, the vitreous humor (gel-like substance in the eye) may leak into the space behind the retina, causing a decrease in intraocular pressure. However, it's important to note that intraocular pressure alone cannot definitively diagnose a detached retina, and further diagnostic tests, such as a dilated eye examination or retinal imaging, would be needed for confirmation.
Smooth retina edges identified on slit-lamp biomicroscope examination (Option B): In the case of a detached retina, the edges of the retina may appear irregular or undulating rather than smooth. This irregularity is often observed during a dilated eye examination rather than with a slit-lamp biomicroscope.
Visual acuity of 20/20 using the Snellen eye chart (Option C): Visual acuity may be affected in a detached retina, depending on the extent and location of the detachment. However, visual acuity alone cannot confirm a detached retina, as other factors such as refractive errors or cataracts can also affect visual acuity.
Lens and cornea appear intact during ophthalmoscope exam (Option D): While a detached retina may be visualized during an ophthalmoscope examination as a gray or whitish area behind the lens, the appearance of the lens and cornea being intact does not definitively diagnose a detached retina. A thorough dilated eye examination by an ophthalmologist is necessary for accurate diagnosis.
Correct Answer is ["A","C","D"]
Explanation
A. In the community, the nurse should notify emergency services: In a community setting, such as outside the hospital or in a public area, it is essential to activate emergency medical services (EMS) by calling for help immediately when initiating CPR.
B. Compression rates and depths vary depending on the setting: Compression rates and depths for CPR follow standardized guidelines set by organizations such as the American Heart Association (AHA) and may not significantly differ between community and hospital settings. These guidelines typically recommend a compression rate of 100-120 compressions per minute and a compression depth of at least 2 inches (5 centimeters) for adults.
C. In the hospital, codes are addressed by an interprofessional team: In a hospital setting, cardiac arrest situations are typically addressed by an interprofessional team consisting of physicians, nurses, respiratory therapists, and other healthcare providers. This team-based approach allows for coordinated efforts in resuscitation, including advanced interventions such as airway management, medications, and defibrillation.
D. In the community, the nurse might use laypeople for assistance: In a community setting, especially if the nurse is providing CPR outside of a healthcare facility, there may be a need to involve laypeople or bystanders for assistance. Promptly recruiting bystanders to call for help, retrieve an AED if available, or assist with chest compressions can improve outcomes for the victim of cardiac arrest.
E. In the community, the use of automated external defibrillators (AEDs) requires the presence of a health care provider: In many community settings, including public places like shopping malls, airports, and schools, automated external defibrillators (AEDs) are available for use by laypeople or bystanders. While the presence of a healthcare provider is beneficial, AEDs are designed to provide audio and visual instructions for use by individuals without medical training, allowing for rapid defibrillation in cases of sudden cardiac arrest.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.