Potassium and Sodium

Question 1

Functions to maintain by Potassium

Answer 1

Maintain volume and osmotic regulation

Myocardial rhythm and contractility

Acid-base balance

Neuromuscular excitability

Intracellular and extracellular gradients

Metabolic functions

Question 2

Functions to maintain by Sodium

Answer 2

Maintain volume and osmotic regulation

Intracellular and extracellular gradients

Metabolic functions

Question 3

Sodium is an

A. Extracellular anion
B. Intracellular anion
C. Extracellular cation
D. Intracellular cation

Answer 3

C

Question 4

K+ is an

A. Extracellular anion
B. Intracellular anion
C. Extracellular cation
D. Intracellular cation

Answer 4

D

Question 5

T/F: The low levels of potassium in the blood and CSF are due to
the sodium-potassium pumps in the cell membrane

Answer 5

T

Question 6

is for regulation; it maintains
the normal potassium gradients in the extracellular and
intracellular spaces

Answer 6

Sodium-Potassium ATPase

Question 7

The recommended daily intake of potassium

Answer 7

4,700 nm only

Question 8

only ______ of K+ concentration is found in the plasma

Answer 8

2%