nephro Flashcards
Main benefit of EPO?
Improving exercise tolerance
First line rx for hyperkalemia?
Insulin dextrose
Hypercalciuria and renal stones prophylaxis?
Thiazide diuretics
Idiopathic membranous glomerulonephritis antibodies?
A2 antibodies
Diabetic nephropathy stages?
Stage 1 - hyperinfiltration
Stage 2 - GFR remains elevated
Stage 3 - microalbuminuria
Stage 4 - persistent proteinuria, HTN,
Stage 5 - renal replacement therapy needed
Biggest complication of nephrotic syndrome?
Renal vein thrombosis
ADPKD scan and management?
Abdo USS, mx - tolvaptan
Tamsulosin side effects?
Dizziness and postural hypotension - alpha-1 adrenergic receptor antagonist is a vasodilator
Anticoag used during plasma exchange? Electrolyte imbalance?
Sodium citrate - hypocalcaemia
Tacrolimus side effect?
Tremor
Membranoproliferative glomerulonephritis (mesangiocapillary) types?
type 1: cryoglobulinaemia, hepatitis C
type 2: partial lipodystrophy
Alport syndrome inheritance?
X linked dominant
Goodpasture’s syndrome antibodies?
IgG deposits on renal biopsy
anti-GBM antibodies
ADPKD medication and drug mechanism?
Tolvaptan - Vasopressin receptor 2 antagonist
HIV-associated nephropathy (HIVAN) glomerulonephritis?
Focal segmental glomerulosclerosis
Rapidly progressive glomneph antibodies?
cANCA
Sx of prerenal uraemia?
Kidneys hold on to sodium to preserve volume
Nephrogenic diabetes insipidus may be caused genetic mutations - most and least common?
more common form affects the vasopression (ADH) receptor
less common form results from a mutation in the gene that encodes the aquaporin 2 channel
Most common cause of peritonitis secondary to peritoneal dialysis?
Coagulase-negative Staphylococcus
Barter’s syndrome - normotension or hypertension?
Normo
Mesangium: normal, with no hypercellularity. The capillary walls are thickened. Subepithelial deposits are seen + creates a ‘spike and dome’ appearance?
Membranous glom-nephritis
Cause of ADH suppression in the posterior pituitary gland?
Alcohol
Graft rejection antibody?
IgG
Eosinophilia and NSAID use?
Acute interstitial nephritis
Renal stones on x-ray? Cystine and urate/xanthine?
Cystine stones: semi-opaque
Urate + xanthine stones: radio-lucent
Testicular seminoma marker?
hCG
Non-seminomas?
hCG and AFP
What are stag-horn calculi normally composed of?
Struvite - (ammonium magnesium phosphate, triple phosphate)
Autosomal dominant polycystic kidney disease type 2 is associated with a gene defect in?
Chromo 4
CKD on haemodialysis - most likely cause of death?
IHD
Alport syndrome inheritance?
X linked dom
Safe drug for SLE in pregnancy?
Azathioprine
Glomneph in SLE?
Diffuse proliferative glomerulonephritis
Glomneph associated with cancer?
Membranous
A 23-year-old man with end-stage renal failure secondary to minimal change disease has presented to the renal clinic along with his brother. They are both undergoing investigation for possible organ donation.
Bloods taken for HLA matching show that antigens A, B, DP, DQ, and DR are matches.
Which is the most important to match?
Renal transplant HLA matching - DR is the most important
Which glomerulonephritis is most characteristically associated with partial lipodystrophy?
Mesangiocapillary glomerulonephritis (membranoproliferative)
T1 - cryoglobulinaemia, hepatitis C
T2 - partial lipodystrop
Diabetes insipidus in patients taking lithium mechanism?
Lithium desensitises the kidney’s ability to respond to ADH in the collecting ducts
Contrast-induced nephropathy occurs when?
2 -5 days after administration
Proteus mirabilis infection predisposes to which type of stone?
Proteus mirabilis infection predisposes to struvite kidney stones
Which type of glomerulonephritis is associated with normal complement levels?
Goodpasture’s
Calcium resonium mechanism of action?
Increases K excretion - resonium removes!
Membranoproliferative glomerulonephritis secondary to partial lipodystrophy - which complement will be low?
C3
eGFR variables?
CAGE - creatinine, age, gender, ethnicity
Time taken for an arteriovenous fistula to develop?
6-8 weeks
Patients who have received an organ transplant are at risk of skin cancer - which type?
Squamous cell cancer
How to tell if blood in urine is glomerular in origin?
Dysmorphic RBCs on microscopy
GFR ACD?
zona glom - aldosterone
zona fas - cortisol
zona ret - DHEA