Hospital layout systems and zoning
When organizing the territory of healthcare facilities, three classical layout systems are distinguished:
- Decentralized (pavilion): all departments are housed in separate low-rise buildings. This is the oldest system.
- Centralized: the main departments are gathered in one large building, while the morgue, administration, and outpatient clinic are placed in separate structures.
- Mixed: has become the most widely used. Somatic, X-ray, and physiotherapy services are concentrated in the main building. Infectious disease, pediatric, radiological, and maternity units are placed in isolated buildings.
The territory of healthcare facilities is strictly zoned. The pathological anatomy building must be located at a distance of at least 30 meters from the catering unit and inpatient buildings, with dedicated access routes for ritual transport. The outpatient clinic is built closer to the periphery of the site with a convenient independent entrance. The infectious diseases ward requires strict separation into "clean" and "dirty" zones. They are isolated from each other by a strip of thorny shrubs, and a covered platform for vehicle disinfection is mandatory at the exit from the "dirty" zone.
Modern architectural trends
The mixed layout type is frequently modernized today. Block systems are emerging, where buildings are connected by passages, as well as monoblock systems — where ward departments are grouped in high-rise buildings. Meanwhile, sanitary regulations limit the height of standard hospitals to 9 floors (exceedances are permitted only for ultra-large complexes). Medical and diagnostic units are most often located in low-rise T-, U-, or H-shaped annexes.
Foreign experience and domestic practice (exemplified by emergency hospitals) demonstrate the effectiveness of grouping patients not by disease profile, but by severity of condition. This allows for organizing highly specialized care using a flow-line method and reducing treatment duration. Highly specialized centers (oncological, cardiological) are considered the most advanced type of organization. Any introduction of new treatment technologies requires mandatory changes to the organizational and structural form of the building.
Ward section structure
The primary functional unit of the inpatient department is the ward section — a fully isolated complex of rooms for patients with similar diseases. Typically, a single department (surgery, therapy) consists of two such sections with a shared medical staff. The optimal capacity of one section is 25–30 beds, which is ideal for the treatment process and comfort.
The traditional layout form of the section is linear. It provides a good view of all wards from the on-duty nurse station, excellent insolation, and convenient access to auxiliary rooms.
In an adult ward section, the bed capacity is distributed according to a clear scheme:
- 60% of the beds are allocated to four-bed wards.
- 20% of the beds are occupied by two-bed wards.
- 20% of the beds are single rooms.
The section must include day-stay lounges, doctors' and head nurse's offices, a pantry, a dining room, procedural and enema rooms. In modern hospitals, bathrooms are located directly adjacent to the wards.
Ward hygienic standards
The microclimate of a hospital ward is strictly regulated, as it directly affects the rate of recovery.
Main area requirements:
- Single ward without a gateway — 9 m².
- Single ward with a gateway — 12 m².
- 2- and 4-bed wards — 7 m² per patient.
Ceiling height must be at least 3 meters. This is due to the air cubic capacity requirement: there must be at least 20 m³ of volume per bed. This volume is vital for the proper operation of ventilation, which must guarantee a minimum twofold air exchange, meaning it must supply and extract 80 m³ of air per hour per patient. During design, it is important to ensure the correct organization of airflows (unidirectional and non-unidirectional).
Briefly: answers to topical questions
Which groups of rooms are mandatory components of a standard ward section?
The ward section includes:
- wards;
- treatment and auxiliary rooms, including procedural and enema rooms;
- utility rooms;
- patient day-stay areas (lounges);
- offices for doctors, the housekeeping sister, and the head nurse;
- pantry and dining room;
- corridor;
- sanitary facility.
In modern hospitals, sanitary facilities are located directly adjacent to the wards for patient convenience.
What specific microclimate parameters (temperature, humidity, air velocity) are regulated in adult wards?
In adult wards, only the optimal air temperature is regulated; specific humidity and air velocity values are not presented in the sources. During winter and transitional seasons, a comfortable temperature is 20–22 °C. Somatic and surgical wards equipped with air conditioning maintain a temperature of 26 °C. Insufficient ventilation leads to stale air and an increased risk of healthcare-associated infections.
What distance must be maintained between beds, as well as from beds to exterior walls in a multi-bed ward?
In a multi-bed ward, distances are strictly regulated to limit the transmission of airborne infections.
- Distance between beds must be at least 0.9–1.0 m.
- Distance from the exterior wall and windows to the bed must be at least 0.8–1.0 m.
To maximize the use of daylight, beds are positioned with their long axis parallel to the wall with windows.
To memorize the bed composition in the adult section, use the "6-2-2" rule: 60% in 4-bed, 20% in 2-bed, and 20% in single-bed wards.
Class and exam questions
What bed capacity of a ward section is considered optimal?
It is most appropriate to design a section for 25–30 beds. This ensures patient comfort and convenience in organizing the treatment process.
What is the core concept and what are the advantages of a linear hospital ward layout?
With a linear layout, the wards are lined up along a corridor. This provides sufficient insolation, convenient placement of auxiliary services, and a good view of all wards from the nurse station.
What area and air exchange standards are established for hospital wards?
In multi-bed wards, 7 m² is allocated per patient, and in single wards, from 9 to 12 m². The ventilation system must ensure an air exchange of 80 cubic meters per hour per bed.
How is the area of an infectious diseases building zoned?
The territory is strictly divided into "clean" and "dirty" zones, isolated by thorny plantings. The exit from the "dirty" zone must be equipped with a vehicle disinfection platform.
What else to study on this topic
- Decentralized, centralized, and mixed hospital layout systems
- Features of the block system and monoblock systems in modern architecture
- Specifics of zoning the territory of an infectious diseases hospital and the pathological anatomy department
- Organization of patient flow care based on severity of condition
- Requirements for artificial ventilation and airflow organization in wards
Master the entire topic in the "Hygiene" course
This is a summary. The course covers everything tested in classes and exams.
- Complete study guide on "Ward Department Hygiene" and 530 more pages on the subject
- Assignments and quizzes after every topic — just like in a colloquium
- AI tutor answers questions on the topic anytime
- 95 video lessons for the subject
Other topics in the section "Chapter 8. Hygiene of Healthcare Facilities"
Prepared by WhiteCoat Pro faculty in accordance with the medical school curriculum. For educational purposes only.