Biochemistry Flashcards
1
Q
What hormone controls water balance?
A
- ADH
- Released from posterior pituitary
2
Q
Increased ADH =
A
= Small volume of concentrated urine
3
Q
What controls sodium balance?
A
- steroids
- aldosterone and cortisol
- released from adrenal glands
4
Q
Too much mineralocorticoids =
A
= sodium gain
5
Q
The extracellular fluid is half the volume of the intracellular?
TRUE OR FALSE
A
- TRUE
6
Q
Sodium is confined to the _____ fluid compartment
A
- extracellular
7
Q
Water cannot move between compartments
TRUE OR FALSE
A
FALSE
8
Q
Hyponatraemia means?
A
- low sodium
9
Q
Clinical signs of hyponatraemia?
A
- dehydration
- hypotension
10
Q
Causes of too much water?
A
- SIADH
- Compulsive uptake
11
Q
How can you treat too little water - hypernatraemia?
A
- water as dextrose
12
Q
Oedema signifies what?
A
- effective circulating volume depletion
- body acts as it would to dehydration
13
Q
How do you treat oedema?
A
- loop diuretics
