Goljan renal Flashcards

1
Q

Lupus

A
antibody = anti-dsDNA
antigen = DNA 

deposit in glomerular capillaries

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2
Q

If immune complex too big,

A

then stuck underneath endothelial cell nucleus and can’t get thru basement membrane to podocyte

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3
Q

post strep GN

bacterial antigen + antibody

A

small antibodies can go thru basement membrane and deposit on epithelial side = subepithelial deposit

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4
Q

how to visualize immune complex

A

electron microscopy

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5
Q

Goodpasture’s on EM

A

linear pattern due to anti-GBM antibodies

type 2

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6
Q

granular pattern on EM means…

A

immune complex disease type 3

1) lupus
2) post-strep GN

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7
Q

only glomerulonephritis truly diagnose with immunofluorescence

A

IgA glomerulonephritis

no IgG

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8
Q

2 types of glomerulonephritis

A

1) nephritic

2) nephrotic

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9
Q

definition of nephritic glomerulonephritis

A

1) red cell casts

2) inflamm of glomerulus = spill

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10
Q

definition of nephrotic syndrome

A

1) fatty casts
2) > 3.5 g/24 hr urine
3) edema

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11
Q

too many glomeruli > 100

A

proliferative glomerulonephritis

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12
Q

patient had scarlet fever 2 weeks ago

now with hematuria, RBC casts, mild-mod proteinuria, HTN, periorbital edema

A

post-strep glomerulonephritis

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13
Q

35 y/o woman with + ANA with rim pattern = anti-dsDNA

type of GN

A

diffuse proliferative GN

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14
Q

lupus on EM

A

endocapillary wire loops
diffuse prolif GN
subendotheial immune deposits

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15
Q

prolif parietal epith cells not in glomerulus with crescent around

A

crescentic GN

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16
Q

worst GN

A

crescentic GN go into ARF within 3 months without dialysis

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17
Q

most common crescentic GN disease

A

goodpasture’s
still nephritic

polyarteritis nodosa
Wegener’s

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18
Q

maltese crosses

pathopneumonic for

A

cholesterol in urine

nephrotic syndrome

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19
Q

children with nephrotic at risk for

risky organisms as child vs. adult

A

peritonitis

child = strep pneumoniae
adult = e coli
20
Q

8 y/o boy with URI 1 week ago
now weight gain
diffuse pitting edema/anasarca
normotensive

normal light microscopy
normal immunofluorescence

on EM, podocyte fusion

A

lipoid necrosis due to cholesterol in urine

minimal change disease

21
Q

when albumin goes down, liver ..

A

makes more cholesterol

cholesterol can’t get into urine –> fatty casts into urine = maltese c

22
Q

lost negative charge in basement membrane so albumin gets through

A

minimal change

23
Q

how to treat minimal change

A

corticosteroids

24
Q

most common nephrotic syndrome in kids

A

minimal change

25
``` HIV+ patient with pitting edema UA shows > 3.5 g/day fatty casts in urine HTN ``` most common GN in aids patient, IVDA
focal segmental glomerulosclerosis
26
2nd worst GN you can get
FSGS
27
adult with pitting edema fatty casts in urine UA > 3.5 g protein per day not proliferative GBM thickened most common GN in adults
diffuse membranous glomeruonephritis
28
diffuse membranous glomeruonephritis on EM on silver stain
on EM, subepithelial deposits on silver stain, epimembranous spikes = immune complexes
29
most common causes of diffuse membranous nephropathy
1) idiopathic 2) NSAIDS 3) hep B 4) captopril 5) malaria, syphilis 6) carcinoma
30
type 1 and type 2 MPGN immune complex because end in -itis type 1 found in what patients
HCV
31
membranous glomerulopathy in ___ type 1 MPGN in ____ HCV found in HBV found in
HBV HCV MPGN and cryoglobulinemia polyarteritis nodosa and membranous glomerulopathy
32
type 1 MPGN has a
subendothelial deposit | nephrotic syndrome
33
type 2 MPGN
autoantibody against C3 nephritic factor causes C3 convertase overactive breaking complement down
34
lowest complement levels in any glomerulonephritis found in
type 2 MPGN
35
type 2 MPGN also known as
dense deposit disease
36
tram tracking means
mesangial cell extended btwn basement membrane and endothelial cell MPGN
37
big balls on electron microscopy
diabetic glomerulosclerosis
38
diabetic glomerulosclerosis 1st vessel hyalinized = efferent arteriole
hyaline arteriolosclerosis = small vessel disease in diabetes and HTN type 4 collagen in mesangium = big balls excess red
39
if lumen narrow in efferent arteriole
incr GFR, incr creatinine clearance efferent arteriole hyalinized and obstructing hyperfiltration damage
40
when glucose attach to amino acid and protein
non enzymatic glycosylation of GBM
41
diabetic patient with glomerulosclerosis
makes GBM permeable to protein microalbuminuria
42
treatment for diabetic glomerulosclerosis and microalbuminuria
ACE inhibitor afferent arteriole controlled by PGE2 efferent arteriole controlled by angiotensin II if decr angiotensin II, vasodilates efferent arteriole decr GFR but still glycemic control because ACEI won't stop non enzymatic glycosylation
43
kimmelsteil wilson disease
nodular glomerulosclerosis diabetic glomerulosclerosis
44
amyloid deposits | when stain under polarized light
apple green birefringence
45
associations ``` children IVDA, aids adults HCV autoantibody against C3, lowest complemetn ``` diabetes apple green
``` lipoid necrosis FSGS membranous glomerulopathy type 1 type 2 ``` diabetic glomerulosclerosis amyloids
46
IgA glomerulonephritis anti-IgA
bergers disease | henoch-schonlein purpura
47
``` palpable purpura polyarthritis slight GI bleed hematuria RBC casts ``` mesangial IgA deposits ``` kids = episode hematuria relapsing adults = episodic microscopic hematuria ```
henoch-schonlein purpura