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Reducing Substances, Urine

Mnemonic:    [U Red Sub]
Name:    Reducing Substances, Urine
Specimen:    1 mL urine from a random collection.
Reference Range:    Negative
Critical Range:    = 1+ in neonates (<28 days)
  Method:    Copper Sulfate Reaction
Note:    This test is reflexively ordered on urinalysis specimens if the patient is less than two years of age.