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 D
Explanation
A. Lie on your back when sleeping: Lying on the back when sleeping may be recommended initially after cochlear implant surgery to avoid putting pressure on the surgical site. However, this instruction should not be included in the plan of care indefinitely. Once the client is comfortable and the surgical site is healing well, they should be allowed to sleep in any position that is comfortable for them.
B. Lie on your front when sleeping: Lying on the front when sleeping is not typically recommended after cochlear implant surgery, as it may put pressure on the surgical site and disrupt healing. This position could potentially cause discomfort and increase the risk of complications. Therefore, this instruction should not be included in the plan of care.
C. Resume your exercise routine: Resuming the exercise routine immediately after cochlear implant surgery may not be advisable. The client should be instructed to avoid strenuous activities and heavy lifting for a certain period as advised by the healthcare provider. Engaging in vigorous exercise too soon after surgery could potentially disrupt the healing process and increase the risk of complications. Therefore, this instruction should not be included in the plan of care immediately after surgery.
D. Wash your hair 24 hr after surgery: After cochlear implant insertion, it is important to keep the surgical site clean to prevent infection. Washing the hair 24 hours after surgery helps to maintain cleanliness and hygiene without disrupting the surgical site. It is typically safe to wash the hair after this period as long as gentle care is taken to avoid excessive manipulation of the implant site.
Correct Answer is B
Explanation
A. "Your heart condition is caused by excessive stretching of the ventricles": This statement is incorrect. Excessive stretching of the ventricles typically occurs in dilated cardiomyopathy, not restrictive cardiomyopathy (RCM). In RCM, the primary issue is not excessive stretching but rather stiffening of the ventricular walls.
B. "Your heart condition is caused from stiffening of the walls of the ventricles": This statement is correct. Restrictive cardiomyopathy (RCM) is characterized by abnormal stiffening (fibrosis) of the ventricular walls, which impairs the heart's ability to fill properly during the diastolic phase of the cardiac cycle. This stiffening restricts the heart's ability to relax and fill with blood efficiently.
C. "Your heart condition is caused by thickening of the ventricular walls and septum": This statement describes hypertrophic cardiomyopathy (HCM), not restrictive cardiomyopathy (RCM). In HCM, there is abnormal thickening of the ventricular walls and septum, leading to impaired filling of the ventricles and potential obstruction of blood flow out of the heart.
D. "Your heart condition is caused when the ventricular tissue becomes fibrous and fatty": This statement describes arrhythmogenic right ventricular cardiomyopathy (ARVC), not restrictive cardiomyopathy (RCM). ARVC is characterized by replacement of myocardial tissue with fibrous and fatty tissue, primarily affecting the right ventricle.
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