Predictors of Bone Mineral Density in Lupus Nephritis Activity

"Investigations: including the different following modalititis~A. Laboratory investigations include:~1. Complete blood picture, PT PC INR, RBS Kidney function tests, eGFR Urine analysis, 24 hours' protein in urine~2. Specific laboratory investigations for SLE and lupus nephritis: ANA,AntiDsDNA,C3,C4~3. Laboratory investigations of Bone mineral density predictors Ca, phosphorus, PTH, vitamin D (OH), Alkaline phosphatase, Fibroblast Growth Factor 23 (FGF 23)~B. Imaging studies:~1 - Abdominal ultrasound 2- chest x-ray 3- Echocardiography (in lupus nephritis with activity form) 4- DEXA bone scan~C. Invasive modality:~Renal biopsy of Patients with SLE with lupus nephritis"