Ascension Saint Alexius Women and Children’s Hospital

Hoffman Estates, IL

patient room at women and children's hospital


A new six-story, 210,000-square-foot hospital connected to the existing St. Alexius Medical Center (now part of Ascension) houses a full range of specialty care for pediatric patients, their parents, siblings, and other support networks. An associated renovation in the existing building includes new operating rooms and PACU. The combined project had a budget of $125 million.

Alexian Brothers Women and Children’s Hospital

The new six-story hospital building houses:

  • A floor of general pediatrics and pediatrics intensive care
  • A floor of Level III neonatal intensive care (NICU) and NICU stepdown
  • A floor of mother-baby suites and a well-baby nursery
  • A floor of private birthing suites, ante-partum suites, and C-section operating rooms
  • The Center for Pediatric Brain
  • A USP 797-compliant pharmacy

The renovated operating suite includes:

  • Two new operating rooms
  • Post-anesthesia care unit (PACU)
  • Central sterile
  • MD lounge

Details of the MEP design for the project include:

  • Four 50,000-cfm variable air volume hospital-grade custom air handling units (AHUs) located in the third-floor mechanical room. The air distribution systems include individual VAV terminal units and reheat coils for every patient room, and a ducted return system.
  • Perimeter heat via heating hot water radiant ceiling panels.
  • Renovated PACU and new operating rooms serviced by a new surgery-grade rooftop AHU.
  • Specialty exhaust systems, including an isolation room exhaust system with bag-in/bag-out HEPA filters and a pharmacy chemotherapy hood exhaust system.
  • Gas-fired make-up AHUs providing stairwell pressurization for this high-rise building.
  • Chilled water for the AHU cooling coils is piped from the high-efficiency variable-primary flow central chilled water plant.
  • Steam from the central plant generating heating hot water for two heating loops (for perimeter radiant heat and reheat via four steam-to-hot-water heat exchangers).
  • Central plumbing services include a new incoming water service from dual 10-inch water lines with a triplex domestic water booster pump package, with domestic hot water generated by three semi-instantaneous steam-fired hot water heaters. Domestic hot and cold water is distributed with a floor-by-floor horizontal distribution system from centrally located risers. The pediatric intensive care unit features a combination water closet / lavatory units in each room.

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