A nurse is performing preoperative assessments on a client who has a suspected detached retina. Which of the following should the nurse expect to find?
Tonometer intraocular pressure reading 8 mm Hg
Smooth retina edges identified on slit-lamp biomicroscope examination
Visual acuity of 20/20 using the Snellen eye chart
Lens and cornea appear intact during ophthalmoscope exam
The Correct Answer is A
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Lower back or groin pain: Lower back or groin pain can be an early manifestation of an abdominal aortic aneurysm (AAA). This pain may result from pressure exerted by the enlarging aneurysm on surrounding structures or from irritation of nerves as the aneurysm expands. As the aneurysm enlarges, the pain may become more severe and persistent.
B. Hunger after eating: Hunger after eating is not typically associated with an abdominal aortic aneurysm. This symptom may be indicative of various gastrointestinal issues such as peptic ulcer disease or gastritis, but it is not a characteristic manifestation of AAA.
C. Pain in the chest: While AAA can lead to compression of nearby structures, resulting in referred pain, chest pain is not a common early manifestation of an abdominal aortic aneurysm. Chest pain is more commonly associated with cardiac issues such as angina or myocardial infarction.
D. Presence of Cullen's sign: Cullen's sign refers to periumbilical bruising, which can occur due to retroperitoneal hemorrhage from a ruptured AAA. However, Cullen's sign is not an early manifestation of an AAA; it is typically observed in more advanced cases or after rupture has occurred.
Correct Answer is B
Explanation
A. Female sex: While gender can influence the risk of certain health conditions, such as cardiovascular diseases, there isn't a direct correlation between being female and an increased risk of delirium. Both males and females can develop delirium under certain circumstances.
B. History of drug and alcohol use: A history of drug and alcohol use increases the risk for the development of delirium. Substance abuse, including alcohol, illicit drugs, and certain prescription medications, can disrupt neurotransmitter function and lead to alterations in mental status, including delirium. Additionally, withdrawal from alcohol or drugs can precipitate delirium in susceptible individuals.
C. Lack of medical insurance: While access to healthcare and socioeconomic factors can impact overall health outcomes, there isn't a direct association between lack of medical insurance and an increased risk of delirium. Delirium is more closely linked to medical conditions, substance use, and other physiological factors.
D. History of lymphoma: While certain medical conditions, such as infections, metabolic disturbances, and neurological disorders, can increase the risk of delirium, there isn't a direct correlation between a history of lymphoma and the development of delirium. Delirium is more commonly associated with acute illness, surgery, or medication use.
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