Renal Flashcards

1
Q

Retroperitoneal structures

A

Supradrenal glands
Aorta/IVC
Duodenum

Pancreas (not tail)
Ureters
Colon (not transverse)
Kidneys
Esophagus
Rectum
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2
Q

Kidney embedding medium

A

Gerota fascia

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3
Q

BPH vs. cancer in urinary retention

A

BPH is transitional epithelium around the urethra (early urinary retention)
Cancer is outer cells so no retention until late

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4
Q

60-40-20 rule of fluid weight

A

TBW-60 (heavy water assay)
ICF-40
ECF-20 (inulin/mannitol assay)
(ECF is 75% interstitial and 25% plasma (radio-albumin assay))

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5
Q

Cardiac output and renal flow

A

Average cardiac output is 5L/min

25% goes to the kidneys

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6
Q

Urinary glucose resorption

A

Over 200 mg/dL start splay

Over 350 mg/dL true transport maximum

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7
Q

PTH effect on proximal tubule and early distal convoluted tubule

A

Activates adenylate cyclase to increase cAMP and inhibit Na-phosphate cotransport

Can measure cAMP in urine
PTH puts PO4 in Pee

Increases Ca absorption in eDCT

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8
Q

Four factors stimulating renin release

A

1) Fall in BP sensed by the JGA
2) increased renal parasympathetic activity
3) B1 adrenergic stimulation
4) decreased sodium delivery to macula densa

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9
Q

Three mechanisms of angiotensin II

A

1) generalized blood vessel constriction (especially efferent)
2) activation of aldosterone
3) stimulation of Na-H exchange at the proximal convoluted tubule

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10
Q

ADH secretion stimulus

A

1) osmolarity (most important)

2) blood pressure

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11
Q

Degree of acid-base compensation

A

Never complete back to 7.40

If normal then secondary opposite process at play

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12
Q

Delta/delta analysis of mixed anion gap disorder

A

F

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13
Q

Lucent kidney stones

A

DNA related
Xanthine and uric acid
treat with urine alkalinization (k-citrate)

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14
Q

analgesic nephropathy

A

tubulointerstitial nephritis
WBC casts
can cause decreased blood flow and papilla necrosis
sloughing can cause blockage

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15
Q

FSGS association

A

Usually african american or hispanic
heroin or IVDU
Obesity

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16
Q

Membranous nephropathy association

A

adenocarcinoma (lung, breast)
NSAIDs
HBV
SLE

17
Q

membranoproliferative glomerulonephritis association

A

HBC
HCV
Lipodystrophy

18
Q

minimal change disease ADULTS

A

lymphomas

19
Q

primary renal nephrotic syndromes

A

1) FSGS (#1)
2) membranous (#2)
3) membranoproliferative
4) minimal change
5) IgA nephropathy

20
Q

IgA nephropathy

A

1-2 days after onset of URI
Complement normal
(unlike post strep where C3 is low)