In which refractive disorder is the refractive system weak or the eyeball flattened, causing vision beyond 20 feet to be normal but poor at close range?
a. astigmatism c. myopia
b. hyperopia d. strabismus
B
Refractive errors, the incorrect bending of light rays to focus on the retina, result in changes in visual acuity. When the eyeball is flattened, causing vision beyond 20 feet to be normal but poor at close range, it is considered hyperopia. This is corrected by prescription lenses or contact lenses, which bend the light rays correctly on the retina.
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A major weakness of correlational research is the risk of self-selection bias
A) True B) False
What type of education would be appropriate for you to provide for Mrs Afualo and her family prior to her discharge?
A 60-year-old female patient, Mrs Teuila Afualo, presents at the day surgery unit (DSU) for an open repair of an umbilical hernia at 8 am. She is of Islander background and has brought several of her family members with her. On admission, you calculate her body mass index (BMI) to be 38, note that her respirations are shallow and rapid, and that she appears to be extremely anxious. Her medical history highlights that she has type 2 diabetes, which is managed with metformin, although she tells you that she has not been diligent about taking or recording her blood glucose level (BGL) regularly. She also informs you that a ‘couple of months ago' her GP prescribed tablets to treat her cholesterol and her blood pressure but she can't remember the names of them, and her son doesn't know them either. She has not taken any of these medications prior to her admission, her reason being that she was fasting. Her BP is 160/90 mmHg and her fasting BGL is found to be 12 mmol/L. You also identify that Mrs Afualo did not attend the preadmission clinic. She explains that she could not attend because her son was not available to drive her. Consequently, she has not had a preoperative chest X-ray (CXR) or any blood tests as per her surgeon's protocols. A check of Mrs Afualo's consent form in the presence of her son reveals it has not been signed and that she is somewhat confused about her intended surgery. What will be an ideal response?
The nurse is teaching a student nurse about the incidence and etiology of nephromas. Which of the following accurately describes this condition?
A) Kidney tumors are almost always benign. B) Kidney tumors occur more frequently in women. C) Kidney tumors are rare in people under 30 years of age. D) Some nephromas have a hereditary risk factor.
The nurse wanted to engage in primary prevention in relation to the vulnerable populations for whom the nurse provided care. For what might the nurse choose to volunteer?
a. Counselor at the homeless shelter b. Instructor for the community college home aide course c. Nurse in a homeless clinic d. Speaker to community groups as an advocate for vulnerable groups