DIT Renal 1. Basics Flashcards Preview

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Flashcards in DIT Renal 1. Basics Deck (20):
1

What are the stimulators of renin release?

1. low renal BP
2. low Na+ delivery to the distal tubule
3. High sympathetic tone (beta 1 receptor)

3

A 40 yo patient of yours weighs 100 kg. What is her estimated plasma volume?

ECF = 20% of weight = 20 L


Plasma volume = 5 L

4

What artery prevents a horseshoe kidney from ascending in the abdomen?

inferior mesenteric artery

6

In what manner do the ureters cross the uterine artery which helps you identify these structures during pelvic surgery?

water under the bridge

ureters pass under the uterine artery

7

What are the side effects of Potter's Syndrome?

POTTER


Pulmonary hypoplasia
Oligohydramnios
Twisted skin
Twisted face
Extreme defects
Renal agenesis

8

constriction of afferent arteriole

RPF: increased
GFR: increased
FF: no change

9

constriction of efferent arteriole

RPF: decreased
GFR: increased
FF: increased

10

dilation of afferent arteriole

RPF: increased
GFR: increased
FF: no change

11

dilation of efferent arteriole

RPF: increased
GFR: decreased
FF: decreased

12

increase in serum protein

RBF: no change
GFR: decreased
FF: decreased

13

ureter stone obstruction

RBF: no change
GFR: decreased
FF: decreased

14

ACEI

RBF: increased
GFR: decreased
FF: decreased

15

Indomethacin, Naprosyn, Ibuprofen

RBF: decreased
GFR: decreased
FF: no change

16

What effect will a renal stone that obstructs the ureter have on GFR and FF?

GFR: increased
FF: increased

17

What fundamental problem creates Potter's syndrome?

malformation of ureteric bud --> bilateral renal agenesis

18

What cell type releases renin?

Juxtaglomerular cells (JG cells)

19

What substances can be used to estimate GFR? What substances can be used to estimate RPF?

GFR: creatinine, inulin
RPF: PAH

63

What is the maximal serum glucose concentration at which glucose can be absorbed in the tubules?

350 mg/dL

64

What vitamin deficiency results from Hartnup disease?

Niacin (B3) deficiency

67

What is the equation for the renal clearance of any substance?

C = (U x V) / P