CKD Flashcards
What is CKD?
More than 3 months reduction in kidney function or structural damage
<60 on eGFR
Diagnosis of CKD
-Markers of kidney damage
- Urinary albumin:creatinine ratio -ACR greater than 3mg/mmol
- Persistent reduction in kidney function <60
What measure determines staging of CKD?
Albumin and urea cretinine ratio
Underlyinh cause, GFR and proteinurua category
When do you offer dialysis in CKD?
On progression to kidney failure
Causes of CKD
diabetes
Hypertension
Glomerular disease
Polycystic kidney disease
History of AKI
Nephrotoxic drugs
Obstructive uropathy ass conditions eg structural renal tract disease, renal calculi
Multisystem diseases with renal involvement eg SLE, vasculutus, myeloma
FG of CKD stage 5, hereditary kidney disease
CVD
Obesity with metabolic syndrome
Gout
Incidental findings of haematuria or protein uria
Symptoms of CKD
Bubbly wee
Any changes in wee frequency
General - lethargy, itch, SOB, camps, sleep disturbance, bone pain, loss of appetite, vomitting, weight loss + taste disturbance
Features of CKD
Uraemic odour
Pallor
Cachexia + malnutrition
Cognitive impairment
Dehydration, hypovolaemua
Tachypnoea
HPTN
Palpable bilateral flank masses w possible hepatomegaly
Palpable distended bladder
Peripheral oedema
Peripheral neuropathy
How is CKD classified?
eGFR (G1-5) and urinary ACR (albumin creatinine ratio) categories (A1-3)
What is the eGFR value for each G stage of CKD?
> 90 = normal = G1
60-89 = G2 = mild reduction
45-59 = G3a - mild to mod reduction
30-44 = G3b mod to severe reduction
15-29 = G4 - severe reduction
<15 = G5 - kidney failure
ACR parameters each stage
<3 - normal to mildly increased
3-30 - moderately increased
>30 - severely increased
What is the parameters for CKD diagnosis?
eGFR consistently over 60mL/min/1.73m2 and/or urinary ACR persistently
Initial investigations for CKD
Blood tests for serum creatinine and eGFR
Urine smaple for urinary albumin to creatinine ratio
Uirne dipstick for haematuria, midstream sample if more than 1
Nutritional status, BMI, BP and serum HbA1c, lipid profile
When does a urine sample for CKD need ot be taken
Early morning
What is considered significant proteinuria in urine sample?
Over 70 mg/mmol
What values mean you repeat urine sample ACR in 3 months?
3-70mg/mmol
Indications for renal tract ultrasound
Renal tract ultrasound if indicated - urinary tract obstruction, FH of polycystic kidney disease, over 20 years
What is acclereated progression of CKD?
25% decrease in eGFR from baseleine and change in CKD category within 12 months OR
decrease in eGFR by 15mL/min/1.73min2 in a year
Assess eGFR at least 3 times over 3 months
Hoq long after an AKI do you monitor fr CKD?
2-3 YEARS even if serum creatinine has returned to baseline
When do you arrange FBC to exclude renal anaemia in CKD patients?
Stages 3b, 4 and 5 or if develop anaemia symtpoms
What do serum calcium, phosphate, vit D and parathyroid hormone tests in CKD test for?
Renal metabolic and bone disorder for stages 4-5 of CKD
When to do 2 week urgent referral in CKD?
Isolated perisitent haematuria and urological cancer suspected
When to reer to nephrology with CKD
ACR over 70mg/mmol or 30mg/mmol with persistnet hameaturia
Uncontrolled HPTN
Rare or genetic cause CKD
Sus renal artery stenosis
Accelerated progression
eGFR < 30
Sus complication of CKD
What to assess ofr with CKD in primary care?
CVD risk
Underlying causes, risk factors for progression
Nephrotoxic drugs
Anxiety and depression
HPTN
Why do yuo prescribe lipid lowering therapy in everyone with CKD?
Primary or secondary prevention of CVD
When is an antiplatelet drug prescribed in CKD
Secondary prevention of CVD
What OTC should people with kdney disease avoid?
NSAIDs eg naproxen, iburogen
Complications of CKD
AKI
HPTN
Dyslipidemia
CVS disease - IHD, Periph artery disease, HF, stroke
Renal miineral and bone disorder
Peripheral neuropathy and myopathy
MALNUTRITION
malignanacy
End stage renal disease
Mortality