parenchymal kidney disease Flashcards

1
Q

33 yr old woman presents with double vision, worsening headache, proteinuria for 3 years treated with ACEi
LVH
3+ protein, 3+ RBCs

A

.

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2
Q

how do you eliminate a pre-renal cause to kidney injury

A
  • ECF volume depletion?
  • drugs?
  • cardiac or liver dysfunction?
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3
Q

how do you eliminate a post-renal cause?

A

no obstruction on ultrasound

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4
Q

RBC casts should point you in the direction of

A

Proliferative glomerular disease

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5
Q

nephrotic syndrome can ONLY be caused by

A

a glomerular disease that is nonproliferative

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6
Q

4 features of nephrotic syndrome

A

proteinuria >3.5g/day

  • edema
  • hypoalbuminemia
  • dyslipidemia
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7
Q

which glomerular disease has RBC casts?

A

proliferative

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8
Q
hypertension
hematuria 
proteinuria 
AKI 
typical constellation for
A

Nephritic syndrome, or glomerulonephritis

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9
Q

mesangial cell proliferation is due to

A

IgA nephropathy

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10
Q

how do you manage IgA nephropathy

A

Block RAAS

  • steroids
  • immunotherapy
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11
Q

DDx for endocapillary proliferation

A

proliferative lupus nephritis

- post-infectious GN

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12
Q

DDx for epithelial cell proliferation

A

crescentic GN, most aggressive

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13
Q

Order of aggressiveness of GN

A
WORST - crescentic
- then endocapillary
then mesangial (best)
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14
Q

Linear GBM stain –>

A

Anti- GBM

GOOD PASTURES

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15
Q

Course/granular stain of glomerulus

A

SLE nephritis

post-infectious GN

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16
Q

Little or no staining of Glomerulus

A

ANCA vasculitis

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17
Q

which proliferative GN do you consider Plasma exchange for?

A

Crescentic GN

18
Q

what can cause decreased oncotic pressure?

A

Nephrotic syndrome, or redcued albumin synthesis

19
Q

what can increase capillary permeability?

A

diabetes

malnutrition

20
Q

syndrome that causes protein to leak into the urine

A

nephrotic syndrome

21
Q

how do you measure protein excretion?

A

24 hr urine collection

Albumin to CR ratio

22
Q

proteinuria is considered

A

> 3.5g/24 hours

23
Q

normal value for 24 hour urine collection

24
Q

why are lipids elevated in nephrotic syndrome?

A

hepatic lipoprotein synthesis is elevated by decreased oncotic pressure

25
Fatty casts and OFB are indicative of
nephrotic syndrome
26
important clinical feature of nephrotic syndrome is
Hypercoaguable state!! - 30% of patients have renal vein thrombosis
27
3 pathologic causes of nephrotic syndrome
minimal change FSGS Membranous
28
2 secondary causes of nephrotic syndrome
Diabetes | amyloid/MM
29
most common cause of nephrotic syndrome ini children is
minimal change disease
30
2 secondary causes of minimal change disease
NSAIDs | hodgkin lymphoma
31
nephrotic syndrome cause that accounts for 50% of cases in blacks
FSGS
32
presence in some glomeruli of focal/segmental areas of mesangial collapse and sclerosis is
FSGS
33
most common cause of nephrotic syndrome in adults is
membranous
34
Secondary causes of membranous GN
MAID
35
thickening of BM with little or no cell proliferation is characteristic of
Membranous nephropathy
36
Kimmelsteil wilson nodules are
characteritstic of diabetic glomeruloscelrosis
37
what can be used to treat the proteinuria
ACEi/ARBs
38
classic features of tubulointerstitial diseases
WBCs or WBC casts in urine
39
2 clues that you have a tubulointersititial kidney disease
hyperkalemia | renal tubular acidosis
40
Acute TBI disease can include
AIN | ATN
41
chronic TBI can be caused by
drugs chronic obstruction autoimmune disease cystic diseases PKD