Nephrology Flashcards
Causes of ESRF
DM HTN GN Idiopathic Others Genetic UTI
Investigations for CRF
- CBC
- RFT (urea, cr, protein, albumin, electrolytes)
- urinalysis (rbc wbc protein)
- 24hr/spot urine (cr concentration and protein; albumin:creatinine)
- imaging US (shape, structure, obstruction); CT pyelogram
- renal biopsy
Risk factors for CKD
DM HTN AI Systemic infections UTI Nephrolithiasis Lower urinary tract obstruction Hyperuricemia AKI Family history (PCKD, Alport, medullary cystic kidney disease) SES (old age, black, smoking, alcoholism, obesity) NSAIDs
What extrarenal infections cause CKD and proteinuria, what should you ask in the history?
HIV, HBV, HCV
ask about IVDU and high-risk sexual behavior
What extrarenal infections cause CKD and proteinuria, what should you ask in the history?
IE, HIV, HBV, HCV
ask about IVDU and high-risk sexual behavior
What does a history of recent diarrhea, bleeding suggest the underlying cause of CKD be and why?
volume loss may decrease renal
perfusion and cause acute kidney
injury, which predisposes to CKD
Investigations for multiple myeloma
- skeletal survey (punched skull lesions)
- serum protein electrophoresis and immunofixation for Ig pattern (immunoparesis) and monoclonal bands
- BM biopsy for clonal expansion of plasma cells
- renal biopsy
- serum free light chains
how to differentiate chronic vs acute renal failure radiologically?
USG
- size
- corticomedullary differentiation
MM symptoms
CRAB hyperCa Renal impairment Anemia Bone fractures
How does MM cause renal failure
- hypercalcemia –> dehydration
- cast nephropathy
- amyloidosis
- light-chain deposition disease
Complications of MM
Infection Bleeding Anemia Plasmacytoma Amyloidosis