Proteinuria
Adult

Nephrology

Useful Management Information

*At the level of nephrotic range proteinuria, albumin accounts for 60-70% of total urinary protein. Within the CPC, ACR > 300mg/mmol OR PCR > 300g/mol has been used for simplicity and ease of application.

  • Refer to local HealthPathways or local guidelines

Quantifying proteinuria (Source – Tasmanian Health 2018):

  • Urine ACR (random or first morning) is generally a sufficient screen for albuminuria/microalbuminuria in diabetic and non-diabetic populations and is a useful test in most renal clinic referrals (first morning specimens increase specificity - but not necessary). Additional protein creatinine ratio testing can assist with diagnostic evaluation.
  • 24-hour quantification: Where urine ACR is significantly elevated (>100mg/mmol) consideration can be given to 24-hour urine protein collections (not generally required in most low-level albuminuria but is more likely to be helpful in those with suspected nephrotic syndrome)
  • Low level albuminuria/proteinuria can occur transiently during fever, cardiac failure, after strenuous exercise (usually no more than trace on dipstick)
  • Haematuria and proteinuria present together is strongly suggestive of a glomerular source for haematuria

As per KHA guidelines, persistent significant albuminuria (ACR > 30mg/mmol) should be referred. Referral is not necessary for a urine ACR < 30mg/mmol with no haematuria.

Clinician resources

Patient resources

Minimum Referral Criteria

Does your patient meet the minimum referral criteria?
Category 1 (appointment within 30 calendar days)
  • Nephrotic range proteinuria* (urine ACR > 220mg/mmol or PCR > 350g/mol) without concerning features (see below)
  • Proteinuria (urine ACR 30-220 mg/mmol or PCR 60-350 g/mol) with a declining eGFR but without concerning features (see below)

Concerning features

  • Significant peripheral oedema
  • Signs of pulmonary oedema
  • Severe hypertension
  • Signs of DVT / PE
  • Infection
  • Acute kidney injury

Please call your local nephrologist if any doubt of the urgency of acute referral as direct ward admission may be considered.

Category 2 (appointment within 90 calendar days)
  • Sub-nephrotic macroalbuminuria (urine ACR 25-220mg/mmol for men or urine ACR 35-350mg/mmol for women or PCR 60- 350g/mmol) with a stable eGFR
Category 3 (appointment within 365 calendar days)
  • Asymptomatic microalbuminuria (urine ACR < 25mg/mmol for men or < 35mg/mmol for women OR PCR < 50g/mol) with other evidence of kidney disease (eg haematuria)

Essential Referral Information

  • Presence of comorbid conditions such as hypertension, diabetes, vascular disease or known chronic kidney disease
  • Current medications, medication history and allergies
  • Timeline of symptoms
  • Examination findings including BP, peripheral oedema, signs of pulmonary oedema
  • FBC, ELFT, urea, creatinine & eGFR results (include serial historical results)
  • Urine albumin creatinine ratio (ACR) or urine protein creatinine ratio (PCR) (ideally early morning sample but a random sample is acceptable)
  • Urine midstream M/C/S (including testing for red cell morphology and casts preferable)

Additional Referral Information

  • Ethnicity (Aboriginal and Torres Strait Islander population especially at risk)
  • Fasting lipid results
  • HbA1c results (for patients with diabetes)
  • Ultrasound (kidney, ureters & bladder) results
Last updated 23 February 2023

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Gold Coast Health Service District

Internal Referrals

Nephrology (E-Blueslips)

Fax

(07) 5687 4497

Post

Booking and Referral Centre
Gold Coast University Hospital
1 Hospital Boulevard
Southport QLD 4215

Enquiries

1300 559 083

Related HealthPathways

No directly related pathways found

Service Availability

Dr Jagadeesh Kurtkoti
Medical Director Nephrology/Renal Medicine

Facilities

Gold Coast University Hospital

If you would like to send a named referral, please address it to the specialist listed above, who will allocate a suitably qualified specialist to see the patient. Alternatively, you can view a full list of our specialists.

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