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Guide to Pediatric Urology and Surgery in Clinical Practice ( PDFDrive ).pdf
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154 A.R. Watson

14.2.3  Investigations

Early morning urine protein : creatinine ratio and afternoon specimen if orthostatic proteinuria suspected

Urine microscopy and culture

If proteinuria combined with hematuria then investigations directed at causes of hematuria and nephritis

Renal tract ultrasound

Patients with proteinuria (>20 mg/mmol on EMU) for a period of 6–12 months should be referred to pediatric nephrology centre for consideration for renal biopsy (Fig. 14.2)

Referral to pediatric

Yes

 

nephrologist for biopsy

 

Persistent non-orthostatic

Referral to pediatric nephrologist

Long-term follow-up

May biopsy

Proteinuria on dipstick?

Confirmation samples

Negative

Reassure

 

 

 

 

 

Positive

 

Take

 

 

Non-renal cause?

Yes

appropriate

 

action

 

 

Other evidence of renal disease?

No

Document and quantify further

Orthostatic on

EMU & later sample

Reassure discharge

Intermittent

Repeat urinalysis every 3 months at GPs. See in 1 year

FIGURE 14.2.  Scheme for assessment of a child with proteinuria.