Renal (MRCP) Flashcards
Features of Alport’s syndrome
Microscopic haematuria
Sensorineural deafness
Radio-opaque renal stones
Calcium oxalate
Calcium phosphate
Mixed calcium oxate/phosphate
Struvite (triple phosphate)
Radio-lucent renal stones
Urate
Xanthine
Semi-opaque renal stones
Cystine
AKI stage I - by creatinine
1.5-1.9X baseline
or
Increase >26.5
AKI stage I - by urine output
<0.5ml/kg/hr for 6-12 hrs
AKI stage II - by creatinine
2.0-2.9X baseline
AKI stage II - by urine output
<0.5ml/kg/hr for =>12 hrs
AKI stage III - by creatinine
3.0X baseline
or
Increase => 353.6
or
started renal replacement
AKI stage III - by urine output
anuria =>12 hrs
Drugs associated with retroperitoneal fibrosis
Bromocriptine
Beta-blockers
Methysergide
Drugs which exacerbate calciphylaxis
Warfarin
Calcium containing compounds
IgA nephropathy (Berger’s disease) presentation
1 -2 DAYS after URTI
Macroscopic haematuria
Young people
Patient with CKD - when start investigating for anaemia
Hb falls below 110 OR if symptomatic
AKI with ‘allergic’ features (fever, rash, IgE, eosinophils)
Acute interstitial nephritis (AIN)
Commonest causes of nephrotic syndrome
MMF:
Minimal change disease
Membranous nephropathy
Focal segmental glomerulosclerosis
Urine sodium in pre-renal AKI
Low <20 mmol/L
24 hr protein excretion in nephrotic syndrome
> 3g/24hr
Urine microscopy findings in acute tubular necrosis (ATN)
Granular casts + renal epithelial cells
Renal biopsy findings in focal segmental glomeruloscerosis
Scarring ‘sclerosis’ and effacement of foot processes
Indications for plasma exchange in ANCA-associated vasculitis
Rapidly progressive renal failure
Pulmonary haemorrhage
anti-GBM disease
Management of IgA nephropathy (Berger’s disease)
Observation
(Consider ACEi if significant HTN or high creatinine)
Definition of microalbuminuria
Albumin:creatinine ratio >2.5
Medication to reduce recurrence of calcium stones
Thiazides
Infectious causes of membranous glomerulonephritis
Hep B
Malaria
Syphilis
Causes of membranous glomerulonehritis
Idiopathic
Infections
Malignancy
NSAIDs
SLE, thyroiditis, RA
Antibodies present in idiopathic membranous glomerulonephritis
anti-phospholipase A2
Alport patient with failing renal transplant
Think Goodpastures
Granular casts (brown/muddy, acellular casts) are found in which type of AKI?
ATN - Acute Tubular Necrosis
(Also in dehydration + exercise)
Which type of nephrotic syndrome shows rapid response to steroid therapy (rapid improvement in proteinuria)
Minimal Change Disease
CKD stage 1 defined as
eGFR >90 + sign of kidney damage on another test
CKD stage 2
eGFR 60-90 + some sign of kidney damage