Women's College Hospital - Health Care for Women, Revolutionized

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Acute Ambulatory Care Unit (AACU)

The Acute Ambulatory Care Unit (AACU) is a short stay medical unit that provides urgent assessment, investigation, and management for patients with new medical problems and those with chronic medical illnesses. This work up and management occurs within a 24-hour timeframe.

The unit is staffed 24/7 by a physician who specializes in General Internal Medicine, as well as medical nurses. The unit also has access to a wide range of medical diagnostics and testing, and can arrange for urgent referrals to other medical specialties.

The goal of the AACU is to manage patients with chronic medical conditions so they can avoid lengthy visits to the emergency room and inpatient hospitalizations.

Patients must be referred by another medical doctor, and there is direct contact between the referring physician and the general internist to assess appropriateness before the patient is accepted. 

The entrance to the AACU is located at the Grosvenor Street entrance of Women’s College Hospital (between Bay St. and Queen’s Park Circle).  There is a designated drop off area at the entrance to the AACU.

Read our information sheet for more details on our referral criteria and our services.

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Location & Contact Information

! Please note
The AACU closes at 11:30 p.m. on Fridays and reopens at 7:30 a.m. on Mondays.

The AACU will also be closed on statutory holidays that fall on a Friday or a Monday.

Acute Ambulatory Care Unit
Women's College Hospital
76 Grenville Street
Main floor
Toronto, ON M5S 1B2

Phone: 416-323-7302

Fax: 416-323-6094

Hours of Service
24 hours a day, seven days a week

The hospital is fully accessible. All clinics have wheelchair accessible washrooms.

Plan Your Visit

Directory - Floor Listings
The directory is your floor by floor guide to the Women's College Hospital building.
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Patient Handbook
Welcome to Women's College Hospital.
This handbook is designed to make your visit to Women’s College an easy and pleasant experience.

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  • Fully affiliated with:
  • University of Toronto

  • A member of:
  • Council of Academic Hospitals of Ontario (CAHO)