CKD Flashcards
what is CKD
worsening, progressive and irreversible loss of kidney function
what are the causes of CKD
AKI with irreversible intrinsic damage
hypertension - vessel thickening reduces blood flow
diabetes - nephropathy
glomerulopathies
vasculitis
polycystic kidney disease
what are the 6 complications associated with CKD
water, electrolyte and acid/base balance
hypertension
muscle dysfunction
renal bone disease
uraemia
renal anaemia
what is electrolyte/water and acid/base balance in CKD and how is it caused
in early stages it is caused by the inability to dilate urine
in late stages, it causes fluid build up - hyperkalaemia and acidosis
what is acidosis
inability of kidneys to remove H+ ions from the urine
how is electrolyte/water balance in CKD treated
turn off tap - fluid and sodium restriction
pull the plug - loop diuretics then metolazone
- stop at dialysis
how is acid/base balance in CKD treated
potassium - 4-6mmol/L target - calcium resonium
acidosis - sodium bicarbonate 500mg TDS
what does calcium resonium do
binds to potassium in the GIT and releases calcium ions - constipation
what causes hypertension in CKD
circulatory volume increase due to sodium and water retention - can cause artery stenosis, renin release and kidney decline and proteinuria
how is hypertension in CKD treated
lifestyle and meds
- if ACR <30 - as per NICE
- if ACR >30 - ACEi/ARB, other anti-hypertensives can be added as needed
monitoring requirements in ACEi/ARB in CKD
potassium prior and 1-2 weeks post
creatinine
C/I IN RENAL ARTERY STENOSIS
how is muscle dysfunction caused in CKD
nutritional deficiencies and electrolyte disturbances
how is muscle dysfunction in CKD treated
lifestyle - iron, caffeine, alcohol, diet
medicines - efficacy is debated - quinine and ropinerole
which stages of CKD are renal bone disease the most prevalent
4 and 5
what causes renal bone disease in CKD
hyperphosphatemia
low vit D
hypocalcaemia
increased PTH release from parathyroid