REGULATION OF SODIUM AND POTASSIUM LEVELS IN BODY FLUIDS

Question 1

Normal sodium concentration in IF and potassium concentration in ICF depends on various factors, but especially on amount of what 2 hormones secreted?

Answer 1

ADH and aldosterone secreted

Question 2

What regulates ECF electrolyte concentration and colloid osmotic pressure by regulating amount of water reabsorbed into blood by renal tubules?

Answer 2

ADH

Question 3

What regulates ECF volume by regulating the amount of sodium reabsorbed into blood by renal tubules?

Answer 3

Aldosterone

Question 4

When conservation of body sodium is required, the kidneys excrete an essentially sodium-free what?

Answer 4

urine

Question 5

Kidneys are considered the chief regulator of what?

Answer 5

sodium levels

Question 6

What is the most important extracellular anion and is almost always linked to sodium?

Answer 6

Chloride

Question 7

Chloride ions are also excreted in urine associated with what electrolyte/chemical element?

Answer 7

potassium

Question 8

What is often associated with cases of potassium loss?

Answer 8

hypochloremia

Question 9

What occurs where there is cell breakdown; as cells disintegrate, potassium enters ECF and is rapidly excreted because it is not reabsorbed efficiently by the kidney?

Answer 9

Hypokalemia