22 - chronic kidney disease Flashcards
What types of renal replacement therapy are there?
Heamo and peritoneal dialysis
What causes proteinuria?
CKD Orthostatic proteinurea Nephoritc/ nephritic syndrome UTI illness and pregnancy
What is the biggest to effect affecting cardiovascular risk?
BP
What is ACR?
Ratio of albumin to creatinine in urine
What is PCR?
Ration of protein to creatine in urine
When is ACR used?
Detection of protein in urine at low levels (more sensitive), used specially for diabetes
When is PCR used?
monitoring and classification of protienurea
What is a spot urine collection?
ACR used to extrapolate protein loss from the kidneys over 24 hour period
How to investigate non-visible haematuria?
Perform urine culture, if negative perform 2 more to exclude UTI. Then refer to nephrology.
How much protein is secreted naturally each day?
150mg due to uromodulin: a glycoprotein relapsed from the renal tubules
What are the causes for heamaturia?
ONNIT
Obstrucitve calculi
Neoplasm
Nephritic syndrome
Inflammtion - UTI
Trauma
What is the definition of CKD?
Abnormality in the stucture of funciton of the kideny for greater than 3 months
How is CKD diagnosed?
eGFR < 60 on morethan 2 months greater than 90 days apart
Why are ACE-i used in diabeties?
Proved reno-protective effects
Hyperglycaemia causes activation of angiotensin I to II
Side effects of ACE-i?
Dry cough - 10%
angioedema 1/2 in 1000
Hyperkalaemia
Hypotension
What do you have to measure when starting an ACE-i?
Creatinine and then compare in 2 weeks. There should not be an increase greater than 25-30%
When can you not used ACE-i in pregnancy?
Can be used during the first timerster however after is a contraindication
Why dose Bone density decrease in CKD?
Failure to metabolise Vit. D3 leading to low Ca triggering Ca relaese from bones from PTH
Why can CKD lead to anaemia?
Can lead to Nephritic syndrome however decreased EPO production is also a cause.
How is CKD mineral bone disease (CKDBD) treated?
Calcitriol +/- phosphate binders