A 66-year-old man with diabetes and a family history of glaucoma presents with new onset vision difficulties. Which of the following tests is commonly used as part of a comprehensive glaucoma exam?
Fluorescein angiography
Computed tomography
Slit lamp
Tonometry
The Correct Answer is D
Choice A reason: Fluorescein angiography is primarily used to assess retinal and choroidal circulation, especially in conditions like diabetic retinopathy or macular degeneration. It is not a standard test for glaucoma evaluation.
Choice B reason: Computed tomography (CT) is used for imaging the orbit or brain in cases of trauma or suspected tumors. It is not part of routine glaucoma screening or diagnosis.
Choice C reason: A slit lamp is used to examine the anterior segment of the eye, including the cornea, iris, and lens. While it is part of a comprehensive eye exam, it does not measure intraocular pressure, which is critical for glaucoma diagnosis.
Choice D reason: Tonometry measures intraocular pressure (IOP), which is a key diagnostic criterion for glaucoma. Elevated IOP is a major risk factor for optic nerve damage in glaucoma, making tonometry an essential component of the exam.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: Cellulitis is a bacterial infection of the dermis and subcutaneous tissues, most commonly caused by group A beta-hemolytic Streptococcus and Staphylococcus aureus. It presents with warmth, erythema, swelling, and tenderness, often with systemic symptoms. The infection typically enters through breaks in the skin.
Choice B reason: This describes acne or folliculitis, which involves inflammation of pilosebaceous units. Cellulitis affects deeper layers of the skin and is not limited to hair follicles.
Choice C reason: This describes the pathogenesis of psoriasis, a chronic inflammatory skin condition. Psoriasis involves keratinocyte hyperproliferation, not infection.
Choice D reason: Psychological stress and environmental allergens may exacerbate certain dermatologic conditions like eczema or urticaria, but they are not causative factors in cellulitis, which is infectious in origin.
Correct Answer is D
Explanation
Choice A reason: Levothyroxine is a synthetic form of thyroxine (T4) used to treat hypothyroidism. Administering this to a patient with signs of hyperthyroidism, such as exophthalmos, tremors, and hypertension, would worsen the condition.
Choice B reason: Liotrix is a combination of synthetic T4 and T3 hormones, also used to treat hypothyroidism. Like levothyroxine, it is contraindicated in hyperthyroid states and would exacerbate the symptoms.
Choice C reason: Liothyronine is synthetic T3 and is used in hypothyroidism or myxedema coma. It is not appropriate for treating hyperthyroidism and would intensify the patient’s symptoms.
Choice D reason: Propylthiouracil (PTU) is an antithyroid medication that inhibits thyroid hormone synthesis and peripheral conversion of T4 to T3. It is indicated in hyperthyroidism and Graves’ disease, especially when symptoms include goiter and exophthalmos. PTU helps reduce hormone levels and alleviate symptoms.
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