Fetal Surgery for Urinary Tract Obstruction Laboratory Medicine

Updated: Nov 05, 2019
  • Author: S Christopher Derderian, MD; Chief Editor: Hanmin Lee, MD  more...
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Laboratory Medicine

Laboratory Medicine Summary

Fetal urine laboratory values for selecting patients that may benefit from antenatal therapy are as follows:

  • Sodium level of less than 100 mmol/L
  • Chloride level of less than 90 mmol/L
  • Osmolality level of less than 200 mOsm/L
  • Calcium level of less than 8 mg/dL
  • β 2-microglobulin level of less than 6 mg/dL
  • Total protein level of less than 20 mg/dL