Renal Bloodwork and Diagnostics Flashcards Preview

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Flashcards in Renal Bloodwork and Diagnostics Deck (20)
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1

Elevated renal values w/high USG indicates what type of azotemia?

Pre-renal

2

What does high USG mean?

Hyperconcentrated

3

What can cause pre-renal azotemia?

Dehydration, hypovolemia

4

Animals that have not been fasted or animals w/high protein meals can have an elevated ____

BUN

5

How do you assess GFR?

Serum CREA

6

A rise in which blood parameter is proportional to a fall in GFR?

CREA

7

Why do we use CREA to measure GFR?

It is excreted unchanged

8

How much renal function must be lost before a dog is unable to adequately concentrate urine?

65%

9

How much renal function must be lost before a cat is unable to adequately concentrate urine?

75%

10

How much renal function must be lost before azotemia develops in a dog?

75%

11

How much renal function must be lost before azotemia is seen in a horse?

66%

12

What is isosthenuria?

Decreased ability to concentrate urine

13

What USG indicates hyposthenuria?

1.001-1.007

14

When is a urine culture indicated?

Isosthenuria, WBCs/bacteria in urine

15

What are causes of renal azotemia?

Aminoglycoside tox, pigment nephropathy, consumption of oxalate plants

16

What are post-renal causes of azotemia?

Urinary obstruction or ruptured bladder

17

What does antidiuretic hormone (ADH) relesase stimulate?

Hyperosmoality and decreased circulating blood volume

18

How does ADH influence water in the kidneys?

Increases renal water resorption

19

How does ADH affect collecting tubules?

Increases permeability

20

What detects changes in plasma osmoality and releases ADH accordingly?

Osmoreceptors in the hypothalamus