Blood buffering Flashcards
Blood has a ph value of more than 7.
It would be classified as?
Slightly basic
What applies to a weak acid such as carbonic acid?
1.The ph is less than 7
2.Very few acid molecules ionise
(Dissociate)
The pH range of human blood is between?
7.35-7.45
What describes stomach acid(gastric juice) Hint tick 3 boxes
1.Has very low pH
2.Contains a strong acid that completely ionises (disassociates)
3.is corrosive
What describes carbonic acid?
1.When carbonic acid loses a proton it forms the bicarbonate ion.
2.Hardly any protons are lost,most remains in the form of carbonic acid.
3.It is part of the blood buffering system.
If the pH of blood were high it means that..
1.There are too few protons (H+)
2The patient has alkalosis.
If you patient had alkalosis what would this mean and what would happen when the buffer system does its job?
1.More carbonic acid would disassociate.
2.They have too few protons
3.The ph would fall
If your patient has acidosis then:
1.They have too many protons.
2Carbonic acid needs to reform.
Acid has a ph level of
Less than 7
What’s does lots of H+ mean?
Low pH
What does not enough pH mean?
High pH
Stomach acid pH 2 which will hydrocloric acid means what?
That it’s a strong acid meaning it totally ionises which means the number of H+ is high.