What is the tubular maximum for glucose by age group?

Updated: Dec 10, 2018
  • Author: Rajendra Bhimma, MBChB, MD, PhD, DCH (SA), FCP(Paeds)(SA), MMed(Natal); Chief Editor: Craig B Langman, MD  more...
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Tubular maximum for glucose (Tm glucose, mg/min/1.73 m2) corrected for the glomerular filtration rate (GFR) varies as a function of age. Tm glucose/GFR (mg/mL) presents as follows:

  • Infants - 0.9-2.94 mg/mL

  • Children - 1.82-2.94 mg/mL

  • Adults - 2.31-2.70 mg/mL

The Tm glucose for children expressed in mg/min/1.73 m2 is as follows:

  • Premature infants - 25-190 mg/min/1.73 m2

  • Term infants - 36-288 mg/min/1.73 m2

  • Children - 254-401 mg/min/1.73 m2

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