2/12/13 b Flashcards
_______ is a severe form of ocular allergy. The most common symptoms are itching, tearing, thick mucous discharge, photophobia, and blurred vision.
Atopic keratoconjunctivitis
Where would redness and telangiectasias be seen in posterior blepharitis?
eyelid margins
What is seen in anterior blepharitis?
crusty discharge on the eyelashes
What treatment for hyperthyroidism can initially aggravate thyrotoxicosis?
radioiodine ablation
What is the antibiotic of choice for human/dog bites? Why?
amoxicillin-clavulanic acid; b/c it has good Gram (+) and (-) and anaerobic coverage
_______ is characterized by sudden, unilateral visual impairment that is usually noted upon waking in the monring. Diabetics at increased risk. Ophthalmoscopy reveals disc swelling, venous dilation and tortuosity, retinal hemorrhages, and cotton wool spots.
Central retinal vein occlusion
What kind of vision loss causes distortion and a central scotoma?
macular degeneration
What type of vision loss presents unilaterally as blurred vision that progresively worsens?
retinal detachment
Which type of vision loss is characterized by loss of peripheral vision and ophthalmoscopic findings of cupping of the optic disc?
open angle glaucoma
WHat procedure is done to prevent the complications of diabetic retinopathy?
argon laser photocoagulation
What is required to confirm the Dx of malignant htn in a pt w/ very high blood pressure (>/=200/140)?
papilledema
The pathologic change responsible for end-organ damage in malignant htn is _______ of the small arterioles.
fibrinoid necrosis
What happens to total body potassium stores in DKA?
reduced d/t osmotic diuresis
What is the most common cause of megaloblastic anemia in chronic alcoholics?
Folate deficiency!!@!
How does alcohol cause folate def?
impairs its enterohepatic cycle and absorption
