U&E: Flashcards
1
Q
Creatinine:
Where is creatine produced from?
What is it used for?
What is it converted which allows it to be broken down to produce ATP and creatinine (waste product)?
A
Creatine is produced in the liver
Fast twitch muscle fibres
Creatine phosphate
2
Q
Urea:
What happens in the urea cycle?
What can cause a raised urea?
What causes a lowered urea - just read
A
Ammonia is converted to urea
Dehydration GI bleed - break down of blood Increased protein breakdown (surgery, trauma, infection, malignancy) High protein intake Drugs
Malnutrition
Liver disease
Pregnancy
3
Q
Potassium:
What controls its levels?
Why is it when someone has acidosis, they may also have hyperkalaemia?
A
Aldosterone at the DCT = increases secretion
Due to potassium and hydrogen ions competing for the same transporter in the kidneys
4
Q
Who can have a out of range blood test that would be normal for them?
A
Bodybuilders Those with amputations - less muscle mass Pregnancy Elderly Meds - trimethoprim 9
