Chronic kidney disease Flashcards
Causes
Diabetes
HTN
Age-related decline
Glomerulonephritis
Chronic pyelonephritis
Polycystic kidney disease
Medications (NSAIDs. PPI, lithium)
Risk factors
Older age
HTN
Diabetes
Smoking
Medications
Presentation
Usually asymptomatic
Oedema
Polyuria
Lethargy
Pruritis (secondary to uraemia)
Anorexia
Insomnia
Nausea and vomiting
HTN
Muscle cramps
Investigations
eGFR (2 tests required 3 months apart)
Proteinuria using urine albumin: creatinine ratio (>3mg/mmol is significant)
Haematuria using urine dip
Renal US
Complications
Anaemia
Renal bone disease
CVD
Peripheral neuropathy
Dialysis related problems
Anaemia causes
Reduced EPO levels (most significant factor) due to toxic effects if uraemia on bone marrow
Reduced absorption of iron
Anorexia/ nausea due to uraemia
Reduced red cell survival (especially in haemodialysis)
Blood loss due to capillary fragility and poor platelet function
Management of anaemia
Target haemoglobin 10-12g/L
Many patients require IV iron
Erythropoiesis stimulating agents
Bone disease
Low vit D, high phosphate, low calcium
Secondary hyperparathyroidism
hyperparathyroid bine disease
- reduction in cellular activity in bone
- osteomalacia
- osteosclerosis
- osteoporosis
HTN treatment
ACEi first line
Furosemide
Reducing risk of complications
Exercise, maintain a healthy weight and stop smoking
Special dietary advice about phosphate, sodium, potassium and water intake
Offer atorvastatin 20mg for primary prevention CVD
Treating complications
Oral sodium bicarbonate to treat metabolic acidosis
Iron supplementation and EPO to treat anaemia
Vitamin D to treat renal bone disease
Dialysis in end stage renal disease
Renal transplant in end stage renal failure