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Items starting with U

Urea (Serum)

Urea (Serum)

Reference Range

Adult male/female reference range: 2.5 - 7.8 mmol/L (Pathology Harmony)

  • Turnaround Time: 1 day
Urea (Urine)

Urea (Urine)

Reference Range

428- 714 mmol/24h

 

  • Turnaround Time: 1 Day
Urine Electrolytes

Urine Electrolytes

Reference Range

None Given. The results must be interpreted together with serum electrolytes and clinical details.

  • Turnaround Time: < 1 day
Urine Osmolality

Urine Osmolality

Reference Range

None Given

  • Turnaround Time: 1 Day

Urine Protein:Creatinine ratio (Random urine)

Reference Range

  • <15 mg/mmol Creatinine = Normal
  • 15 – 49 mg/mmol Creatinine = Trace Proteinuria. Consider ACEI or ARB in diabetes.
  • 50 – 99 mg/mmol Creatinine = Significant proteinuria. Repeat using early am sample. Consider ACEI or ARB in hypertension.
  • 100 – 300 mg/mmol Creatinine = High proteinuria. If new finding, seek nephrology advice regardless of eGFR.
  • >300 mg/mmol Creatinine = “Nephrotic range” proteinuria. If new finding, seek nephrology advice regardless of eGFR.
                                      
Proteinuria is a risk factor for cardiovascular disease and for decline in GFR in CKD
UK CKD Guidelines suggest if PCR is >100 mg/mmol patient should be referred to Nephrologists irrespective of GFR.
 

Source of Reference Range: NICE guideline CG73 (2008) and UK eCKD guidelines 2009.)

 

  • Turnaround Time: 1 Day
Urine Culture

Urine Culture

Reference Range

Please contact laboratory for information regarding Reference Range.

  • Turnaround Time: Negative results = 48 hours, Positive results = 96 hours.
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