Renal Flashcards
CT kidney shows large lesion with central scar, macroscopically the lesion is mahogony in colour.
What is the likely diagnosis?
Benign or malignant?
Oncocytoma
Benign
What is the most common intra abdominal tumour in children?
Wilm’s tumour (nephroblastoma)
“cannon ball mets” on CXR make you think
Renal cell carcinoma
Most common TYPE of renal cell carcinoma?
Clear cell
Loin pain + haematuria + renal mass
Renal cell carcinoma
Renal cell carcinoma is often an incidental finding. True or false?
True
Which staging is used for renal cell carcinoma?
Robson
Renal cell carcinoma most commonly metastasises to?
Lungs
Management of renal cell carcinoma
Radical nephrectomy (if high risk) Partial nephrectomy (low/moderate risk)
Which autosomal dominant syndrome has a high link with renal cell carcinoma?
Von Hippel Lindeau
Managment of infected hydronephrosis
Percutaneous Nephrostomy
Inflammation around the renal tissues which does NOT affect the glomerulous. There is infiltration of immune cells (neutrophil, eosinophil) what is the likely diagnosis?
Interstitial nephritis
Patient develops AKI after treatment of hypertension. What is the likely diagnosis?
Renal artery stenosis
Abdominal bruit makes you think
Renal artery stenosis
Gold standard investigation to check for renal artery stenosis?
CT angiography
Maybe MR angiography?
ACE inhibitors and renal artery stenosis
- unilateral vs bilateral
ACE inhibitors contraindicated in bilateral RAS
ACE inhibitors used to treat unilateral RAS
Young female with Ehlors Danlos syndrome and hypertension. On CT angiography renal artery looks like string of beads. What is likely diagnosis?
Fibromuscular dysplasia
Collection of abnormal plasma cells accumulate in bone marrow
Myeloma
Bone pain, renal failure, weakness, weight loss, hypercalcaemia - paints picture of
Myeloma
Bence jones proteins in urine in which condition
Myeloma
Which electrolyte imbalance is most likely associated with cardiac arrhythmia?
Hyperkalaemia
Tall tented T wave
Flattened P wave
Broad QRS
Hyperkalaemia
Emergency management of hyperkalaemia
Calcium gluconate
Insuline with 50% dextrose or salbutamol
At which level of hyperkalaemia would you consider dialysis
K+ > 7
K+ > 6.5 (and not responding to medical therapy)
Which 2 body symptoms does goodpastures syndrome affect
Kidneys
Lungs
AKI + Haematuria + haemoptysis
Goodpastures syndrome
Goodpastures syndrome is an attack of?
Type IV collagen
What is seen on immunofluorescence in goodpastures syndrome
Linear IgG deposition along basement membrane
What is the best way to monitor kidney function
GFR
Proteinuria is associated with
- nephritic syndrome
- nephrotic syndrome
Nephrotic syndrome
In diabetic nephropathy, there is dilation/constriction in the afferent arteriole and dilation/constriction in the efferent arteriole ?
Dilation - afferent
Constriction - efferent
Diabetic nephropathy - urinalysis findings
Protienuria / hyperalbuminuria
Management of diabetic nephropathy
Tight glycaemic control
Anti-hypertensives (ACE inhibitor - dilates efferent arteriole)
Statin
Dialysis
Transplant
Name 3 types of small vessel vasculitis
GPA
EGPA
microscopic polyangitis
cANCA suggests
GPA
pANCA suggests
EGPA
What are the ‘triple whammy’ drugs to avoid in an AKI?
Diuretics
NSAIDs
ACE inhibitor / ARBs
What is the main thing to check if you think a patient may have AKI ?
Creatinine (is it 50% increased from baseline / >26) Urine output (is there <0.5mL/kg/hr)
Name 3 pre-renal causes of AKI
Hypovolaemia (haemorrhage, D+V)
Hypotension (shock, sepsis)
Renal hypoperfusion (triple whammy drugs, renal artery stenosis)
In normal patients, if there is decreased renal perfusion efferent arteriolar constriction/dilation occurs to maintain GFR?
efferent constriction in normal patients
What mediates arteriolar vasoconstriction to maintain the GFR ?
Angiotensin II
What is the immediate management of pre-renal AKI?
IV FLUIDS
Crystalloid (0.9% NaCl)
Stop nephrotoxic drugs