Acid and Base imbalances Flashcards
(13 cards)
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