Renal Physiology & Acid Base Balance

Question 1

Volume

Answer 1

1,000-2,000 mL/24 hours

clinically expect @ least 30 mL/hr–worry when less

Question 2

Anuria

Answer 2

< 50 mL in 24 hours

markedly reduced

Question 3

Oliguria

Answer 3

< 400 mL in 24 hours

little or scant urine

Question 4

Specific gravity

Answer 4

1.010-1.025

SP of H2O = 1.000

Question 5

normal pH of blood

Answer 5

7.35-7.45 (7.4 optimal)

Question 6

PaCO2

Answer 6

35-45 mmHg

Question 7

PaO2

Answer 7

80-100 mmHg

Question 8

HCO3

Answer 8

22-26 mEq/L

Question 9

Creatinine

Answer 9

0.6-1.2 mg/dL

• end product of protein metabolism excreted by kidneys
• more sensitive indicator of renal function that BUN because creatinine production in body is constant and BUN is influenced by factors in addition to renal dysfunction (dietary protein intake, fluid intake, blood in GI tract).

Question 10

BUN

blood urea nitrogen

Answer 10

8-24 mg/dL

Question 11

Glucose

Answer 11

70-100 mg/dL

Question 12

GFR

Answer 12

> 60 mL/min