A 72-year-old patient comes to the clinic complaining of sudden onset eye pain, nausea, and seeing halos around lights. The nurse notes that the patient’s pupil is mid-dilated and non-reactive to light. What is the most likely cause of these symptoms?
Optic neuritis
Macular degeneration
Narrow angle glaucoma
Cataract
The Correct Answer is C
Choice A: Optic Neuritis
Optic neuritis is an inflammation of the optic nerve that can cause pain and vision loss. The pain typically worsens with eye movement, and vision loss usually occurs in one eye. Symptoms include temporary vision loss, visual field loss, loss of color vision, and flashing lights. However, optic neuritis does not typically cause nausea or seeing halos around lights, and the pupil reaction to light is usually preserved.
Choice B: Macular Degeneration
Macular degeneration primarily affects central vision and is more common in older adults. It can cause blurred or reduced central vision, difficulty recognizing faces, and visual distortions such as straight lines appearing bent. However, it does not cause sudden onset eye pain, nausea, or seeing halos around lights. The pupil reaction to light remains normal in macular degeneration.
Choice C: Narrow Angle Glaucoma
Narrow angle glaucoma, also known as acute angle-closure glaucoma, is a medical emergency characterized by a sudden increase in intraocular pressure. Symptoms include severe eye pain, nausea, vomiting, seeing halos around lights, and a mid-dilated, non-reactive pupil. This condition occurs when the drainage angle between the iris and cornea becomes blocked, leading to a rapid rise in eye pressure. Immediate treatment is necessary to prevent permanent vision loss.
Choice D: Cataract
Cataracts cause clouding of the lens, leading to symptoms such as blurred vision, difficulty seeing at night, sensitivity to light, and seeing halos around lights. However, cataracts develop gradually and do not cause sudden onset eye pain or nausea. The pupil reaction to light is also typically normal in cataract patients.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A Reason:
Advising the patient to increase their screen time to exercise their eye muscles is not appropriate for managing macular degeneration. Increased screen time can cause eye strain and does not benefit the condition. Instead, patients should be encouraged to engage in activities that do not exacerbate eye strain.
Choice B Reason:
Encouraging the patient to quit smoking is a crucial intervention for managing macular degeneration. Smoking is a significant risk factor for the progression of macular degeneration. Quitting smoking can help slow the progression of the disease and improve overall eye health. This intervention addresses a modifiable risk factor and can have a positive impact on the patient’s condition.
Choice C Reason:
Suggesting the patient avoid all physical activities to prevent further eye damage is not necessary for managing macular degeneration. Physical activity is important for overall health and does not directly impact the progression of macular degeneration. Patients should be encouraged to maintain a healthy lifestyle, including regular physical activity.
Choice D Reason:
Informing the patient to reduce their water intake to prevent fluid accumulation in the eyes is not relevant for managing macular degeneration. Adequate hydration is important for overall health, and there is no evidence to suggest that reducing water intake will benefit patients with macular degeneration. This advice could potentially lead to dehydration and other health issues.
Correct Answer is B
Explanation
Choice A: Instruct the patient to elevate the arm above the heart immediately after the procedure
Elevating the arm above the heart can help reduce blood flow to the area, potentially minimizing bleeding. However, this method alone is not sufficient to ensure proper hemostasis, especially in patients with thrombocytopenia. Applying direct pressure to the puncture site is more effective in stopping bleeding and preventing hematoma formation.
Choice B: Apply firm pressure to the site for at least 10 minutes after the procedure
Applying firm pressure to the venipuncture site is crucial in patients with thrombocytopenia to ensure proper clotting and prevent bleeding. This method helps in forming a stable clot at the puncture site, reducing the risk of prolonged bleeding and hematoma formation. Given the patient’s low platelet count, maintaining pressure for an extended period is essential to achieve hemostasis.
Choice C: Avoid using a tourniquet during the procedure
While avoiding a tourniquet might seem beneficial to reduce pressure on the veins, it is not a standard practice to minimize bleeding risk in thrombocytopenic patients. Tourniquets are typically used to make veins more prominent for easier access during venipuncture. The key to minimizing bleeding is proper post-procedure care, such as applying firm pressure to the site.
Choice D: Use a larger gauge needle to ensure quicker blood flow
Using a larger gauge needle is not advisable for patients with thrombocytopenia. Larger needles can cause more trauma to the vein, increasing the risk of bleeding and hematoma formation. Instead, using the smallest gauge needle that can effectively draw blood is recommended to minimize vein damage.
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