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4557 Medicine

A 25-year-old Lady goes to her physician because she is concerned that she may have systemic lupus erythematosus after hearing a public health announcement on TV while working at grocery store. She has no significant past medical history, and her only medication is occasional ibuprofen. She repos that she has had intermittent oral ulcers and right knee pain. Physical examination shows no evidence of alopecia, skin rash, or joint swellimg. Her blood repos shows that she has a positive ANA at a titer of 1:40, but no other abnormalities. Which of the following statements is true?

AFour diagnostic criteria are required to be diagnosed with systemic lupus erythematosus; this patient has three
BFour diagnostic criteria are required to be diagnosed with systemic lupus erythematosus; this patient has two
CIf a urinalysis shows proteinuria, she will meet criteria for systemic lupus erythematosus
DThe demonstration of a positive ANA alone is adequate to diagnose systemic lupus erythematosus
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4562 Medicine

A 35-year-old woman presents with several days of increasing fatigue and shortness of breath on exertion. She was recently diagnosed with Mycoplasma pneumoniae. Physical examination reveals BP 113/67, HR 114 beats/min, and respiratory rate 20 breaths/min. She appears icteric and in mild respiratory distress. Her hemoglobin is 9.0 g/dL and MCV is 110. Which of the following is the best next diagnostic test?

ASerum protein electrophoresis
BFlow cytometry
CPeripheral blood smear
DGlucose-6-PD level
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