Wednesday, February 22, 2012

Electrolyte Quiz

A 38 year old black female presents with a 1-year history of fatigue, malaise, mild dyspnea and weight loss. Key laboratory data: BUN 48, Cr 4.4 (was 3.7 mg/dL two months ago), Alb 3.9, Ca 11.6, PO4 5.2, Mg 2.5, ALT 104, AST 88, Alk phos 554, Bili 0.9, ESR 136; Urine: Ca 17.4, Cr 47.7, Protein 95; U/A: 2+ protein, 2+ blood, 2+ leuk est;  USed:  18-22 WBC, 25-30 RBC, 3+ Ca oxalate crystals; Ultrasound: Rt kidney 10.4 cm with multiple calculi, Lt kidney 10.5 cm with 3 calcifications in the region of the pyramids; no hydronephrosis; iPTH 2.8 pg/ml (NL10-65), 25-vit D 11.8 ng/mL (NL 9-43) , 1,25-vit D, 109.4 pg/mL (NL 15-60); Chest CT: Increased diffuse lung parenchymal density, enlarged lymph nodes in axillary, mediastinal and hilar regions.

What’s the diagnosis?