Referral to kidney specialist

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Emergency referral to on-call nephrologist

Indications for urgent referral to nephrology (including out of hours)

  • Acute kidney injury where creatinine is > 3 x above baseline
  • Malignant hypertension
  • Malignant hyperkalaemia (K >7mmol/L)
  • Nephrotic syndrome (uACR >200mg/mmol)

Routine referral to a specialist should be considered and discussed with patients, taking into account their frailty and wishes for the following group of patients:

  • a 5-year risk of needing renal replacement therapy of greater than 5% (measured using the 4-variable Kidney Failure Risk Equation)
  • an ACR of 70 mg/mmol or more, unless known to be caused by diabetes and already appropriately treated
  • an ACR of more than 30 mg/mmol (ACR category A3), together with haematuria
  • a sustained decrease in eGFR of 25% or more and a change in eGFR category within 12 months
  • a sustained decrease in eGFR of 15 ml/min/1.73m² or more per year
  • hypertension that remains poorly controlled (above the person’s individual target) despite the use of at least 4 antihypertensive medicines at therapeutic doses
  • known or suspected rare or genetic causes of CKD
  • suspected renal artery stenosis