Renal Review PSW 4

Question 1

Normal pH. Normal range.

Answer 1

1. 7.4

2. 7.35-7.45

Question 2

What happens when pH isn’t balanced?

Answer 2

damage to proteins, enzymes etc

Question 3

How do we regulate pH

Answer 3

BUFFER

Question 4

What’s our buffer for ECF?

Answer 4

1. HCO3-

- OUTSIDE the cell

Question 5

Buffer for ICF? Buffering capacity?

Answer 5

1. Phosphates
2. Proteins
3. Other buffers inside the cell
4. Buffering capacity of ICF is larger- can carry more fluid

Question 6

What fluid is the first line of defense when we ingest foods?

Answer 6

ECF

Question 7

What transporters allow fluids to go from ECF to ICF?

Answer 7

Potassium/ Hydrogen countertransporters

Question 8

Levels of which ion is high during acidosis. Explain the mechanism.

Answer 8

High Potassium levels- this is due to the countertransporter K+/H+ which will bring one K+ out of the cell and move one H+ into the cell. - cause Plasma levels of K+ to be high