Acid and Base imbalances Flashcards
PH arterial blood above 7.45
Alkalosis
PH arterial blood below 7.35
Acidosis
Cell death will occur if PH is higher than… or lower than…
- 7.7
- 6.8
Two buffer systems that regulate PH homeostasis?
- Chemical
- Physiological
What is the response time for a chemical buffer system?
-Immediate
What are the 3 types of chemical buffer systems?
- Bicarbonate
- Protein
- Phosphate
What are the two types of physiological buffer systems? and their response time?
- Respiratory= Minutes
- Renal = Hours
How do chemical buffers work?
-Buffers react with a strong acid/ base and replace it with a weak one.
How do the kidneys regulate homeostasis?
-By excreting or retaining both hydrogen and bicarbonate ions during the filtration process.
What is the cause of respiratory acidosis?
-Hypoventilation
What is the cause of respiratory alkalosis?
-Hyperventilation
What are the causes of metabolic acidosis?
- Severe diarrhoea
- Renal disease
What are the causes of metabolic alkalosis?
- Vomiting
- Some diuretics
- Overdose of antacids