Renal Assessment

Question 1

what is the function of the kidneys?

Answer 1

regulate fluid and electrolytes
hormones
controls BP
RBC synthesis/EPO
Vitamin D synthesis
excrete waste

Question 2

what part of the kidney filters blood?

Answer 2

nephrons

Question 3

what are the 3 processes of urine formation?

Answer 3

glomerular filtration
tubular reabsorption
tubular secretion

Question 4

Explain RAAS

Answer 4

angiotensinogen comes from liver
renin from kidney
renin converts angiotensinogen to angiotensin I
ACE from lungs
ACE converts angiotensin I to II
angiotensin II stimulates adrenal to secret aldosterone
angiotensin II vasoconstricts
Aldosterone stimulates reabsorption of salt and water

Question 5

What are some urinary changes related to age?

Answer 5

lost nephrons
decrease in blood supply
loss in bladder tone for women
prostate enlargement
incomplete emptying
risk of UTI

Question 6

normal urine specific gravity range

Answer 6

1.003 to 1.028

Question 7

creatinine range

Answer 7

men: 0.6-1.2
women: 0.5-1.1

Question 8

BUN range

Answer 8

10-20

Question 9

phosphorus range

Answer 9

2.5-4.5