A 27-year-old HIV-positive man comes to the clinic for a ...

C. order a brain MRI D. start him on heparin ... a urologist will most likely need to put in a ureteral stent to correct the obstruction. A DMSA renal scan (choice B) is a radionucleotide study that evaluates renal function and does not give much information about a renal obstruction. ... Since there is no mass effect it is safe to do a lumbar ... ................
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