Ensuring sterility and epidemiological safety in treatment rooms is a critical aspect of the work of any medical institution. Refrigeration equipment used for storing medicines, vaccines, blood samples and biomaterials acts as a potential reservoir for the proliferation of pathogenic microflora. Violation of the rules for sanitizing such devices can lead to damage to expensive medicines and, what is much worse, to the occurrence of hospital-acquired infections.
The process of disinfecting refrigerators for medical purposes differs significantly from household cleaning, as it requires compliance with strict regulations approved by Rospotrebnadzor and the Ministry of Health. In this article we will examine in detail how to treat a refrigerator in a treatment roomwhat chemicals are approved for use, what is the frequency of procedures and how to properly maintain documentation. Compliance with these standards guarantees not only compliance with inspection authorities, but also the preservation of the health of patients.
Regulatory framework and requirements of SanPiN for medical refrigerators
The activities of medical organizations in the Russian Federation are strictly regulated by sanitary rules and regulations (SanPiN). The main document defining the requirements for the maintenance of premises and equipment is SanPiN 2.1.3.2630-10, as well as specialized SanPiNs relating to the management of medical waste and infectious safety. According to these documents, refrigerators used for storing medicines and biological fluids must undergo regular sanitary treatment using disinfectants approved for use in health care facilities (health care institutions).
The key requirement is to use only those disinfectants that which have official registration and a certificate of conformity. The use of household cleaning powders or unspecified liquids is unacceptable, since they may not have the necessary spectrum of antimicrobial action or leave toxic residues. SanPiN 3.3686-21 clearly defines that all surfaces in contact with medications must be inert to the disinfectants used and easy to clean.
⚠️ Attention: The use of chlorine-containing preparations for treating the internal chambers of refrigerators where open ampoules or unsealed packages are stored must be extremely careful. Chlorine vapors can react with some chemicals and change the properties of drugs.
It is important to note that control over cleaning is recorded in special logs, the form of which is also approved by the internal orders of the medical institution. The absence of records of the disinfection carried out is equivalent to its failure to carry out it, with all the ensuing legal consequences for the chief physician and the responsible employee. The regularity of procedures depends on the profile of the department, but strict time frames have been established for treatment rooms.
Criteria for choosing disinfectants for health care facilities
The choice of a chemical agent for treating a medical refrigerator is not a matter of personal preferences of the cleaner or nurse, but a strictly regulated process. The product must have a wide spectrum of action, destroying bacteria (including tuberculosis bacilli), viruses and fungi of the genus Candida. Most often in treatment rooms, products based on quaternary ammonium compounds (QAC), guanide, active oxygen or alcohols are used.
When selecting a drug, you must pay attention to its hazard class. To treat internal surfaces where medications are stored, it is preferable to use products IV hazard class (low-hazard) that do not necessarily require rinsing with water after exposure (although rinsing for medical purposes is still recommended to prevent chemicals from getting into the medications). The concentration of the working solution must strictly comply with the manufacturer's instructions for a specific processing mode.
- 💧 Septodor-Forte - a popular product based on QAC, which has a cleaning and deodorizing effect, is effective against viruses and bacteria.
- 🧪 Optima-Max - universal a disinfectant with a wide spectrum of activity, often used to treat equipment.
- 🛡️ Alaminol is a product based on glyoxal and QAC, excellent for removing biological contaminants and disinfection.
- 🌿 Defect is a combined drug effective in including against pathogens of tuberculosis and fungi.
An important aspect is the compatibility of the refrigeration chamber material with aggressive environments. Plastic, rubber seals and metal shelves can degrade if exposed frequently to concentrated acids or alkalis. Therefore, before starting to use a new product throughout the entire institution, a compatibility test is carried out. Instructions for use It should always be in an accessible place, preferably in the form of a printed copy next to the place where the chemicals are stored.
Stages of complete sanitization of the refrigerator
The process of processing refrigeration equipment in the treatment room is divided into several successive stages: mechanical cleaning, washing, disinfection and ventilation. Skipping any of these steps reduces the effectiveness of the procedure to zero. First you need to completely empty the camera of its contents. Medicines and biomaterials should be temporarily placed in another refrigerator in compliance with the temperature regime or in thermal containers with cold elements.
After defrosting (if the refrigerator is not a No Frost system) and removing the ice, mechanical cleaning is carried out. Visible dirt, dust and crumbs are removed using a rag. Then the surfaces are treated with rags generously moistened with a disinfectant solution. Particular attention is paid to hard-to-reach places: corners, grilles, drainage holes and rubber seals doors, where mold most often accumulates.
☑️ Refrigerator processing algorithm
Exposure (time the solution is kept on the surface) must be strictly observed according to the instructions for the specific product. Usually it ranges from 15 to 60 minutes. After the exposure time has expired, surfaces in contact with medications must be wiped with clean water or sterile wipes to remove chemical residues. The final stage is to thoroughly dry the chamber and ventilate it before turning it on and loading the medications.
⚠️ Attention: It is strictly forbidden to load medications into an undried refrigerator. Residual moisture can lead to corrosion of metal parts, the development of mold and disruption of the temperature conditions for storing medicines.
Frequency of cleaning and keeping control logs
Compliance with the cleaning schedule is the basis of epidemiological well-being. For refrigerators located in treatment rooms and operating rooms, the following frequency is established: a thorough weekly cleaning is carried out using disinfectants, and a general cleaning is carried out monthly with complete shutdown, defrosting and washing of all removable elements. In case of contamination with blood or other biological fluids, treatment is carried out immediately, regardless of the schedule. sanitary treatment using disinfectants, and monthly general cleaning with complete shutdown, defrosting and washing of all removable elements. In case of contamination with blood or other body fluids, treatment is carried out immediately, regardless of the schedule.
All measures taken must be recorded in a logbook for general cleaning or in a special logbook for monitoring temperature conditions and processing refrigeration equipment. The log indicates the date, time, name of the person responsible, the disinfectant used, its concentration and exposure time. The signature of the head nurse or manager confirms control over execution.
| Type of cleaning | Frequency | Means used | Features |
|---|---|---|---|
| Daily | Daily | Soap-soda solution or disinfectant | Wipe external surfaces, handles |
| Weekly | 1 time per week | Disinfectant (HOUR, guanide) | Treatment of internal chambers, shelves |
| General | once a month | Disinfectant + mechanical cleaning | Full defrosting, washing grates |
| By epidemiological indications | Immediately | Disinfectant with virucidal action | In case of contamination with biological fluids |
Checking logs is one of the first points during the visit of the Rospotrebnadzor commission. The absence of records or irregular filling is interpreted as a violation of sanitary legislation. The shelf life of accounting logs is usually at least 3 yearstherefore, it is important to ensure their safety and timely production of new ones.
What to do if the accounting log runs out?
If the pages in the magazine run out, you need to start a new magazine, number the pages, stitch them and seal them with the seal of the institution. The numbering continues or starts anew with a link to the previous log.
Features of treatment for various types of contamination
In the treatment room, various scenarios for contamination of refrigeration equipment are possible. Standard routine cleaning is not suitable for situations where blood, pus has spilled onto a shelf, or an ampoule with biological material has broken. In such cases, the algorithm of actions changes: it is necessary to use products with a higher concentration of the active substance or a longer exposure, aimed at destroying specific pathogens.
If contamination with blood occurs, first the stain is covered with dry disinfectant powder (for example, chlorine-based) or covered with a napkin generously moistened with a disinfectant solution. This prevents splashing of biological fluid during cleaning. After the exposure time is set, the contamination is removed and the area is re-treated. It is important to use personal protective equipment: gloves, a mask, and, if necessary, an apron and goggles.
- 🩸 Blood contamination: a chlorine-containing preparation is used at a concentration of 3-6% of active chlorine, exposure 60 minutes.
- 💊 Spill of drugs: depends on the type of medicine, but usually requires repeated rinsing with water and treatment neutral disinfectant.
- 🦠 Mold: requires mechanical removal, treatment with fungicidal agents and thorough drying with a UV lamp or ozone.
Particular attention should be paid to removal smell. The use of fragrances inside a medical refrigerator is prohibited, as they can be adsorbed by drug packaging. The best way to eliminate odor is freezing, treatment with activated carbon (in a container) or ozonation. Ozone generators effectively destroy organic residues and odors without leaving chemical traces.
Frequent errors and typical violations during disinfection
Despite the presence of clear instructions, medical workers often make mistakes that nullify all efforts to maintain sterility. One of the most common mistakes is using water that is too hot to defrost or prepare the solution. A sharp change in temperature can lead to cracks in the plastic evaporator or deformation of the shelves, which will create niches for the accumulation of bacteria in the future.
Another common problem is the violation of the proportions when preparing the working solution. "Pouring by eye" is strictly forbidden: insufficient concentration will not kill microbes, and excessive concentration can damage the equipment and cause poisoning by vapors. For accurate dosing, it is necessary to use measuring containers and carry out calculations in milliliters, and not in “lids”.
⚠️ Attention: It is prohibited to use abrasive cleaners (powders, metal sponges) to clean the internal surfaces of the refrigerator. Microscopic scratches become an ideal breeding ground for bacteria, which are almost impossible to wash.
It is also a mistake to store foreign objects in the refrigerator: personal belongings of staff, food, excess documentation. This disrupts air circulation, causing local temperatures to rise and increasing the risk of cross-contamination. The refrigeration chamber should contain only medicines and materials that require a certain temperature regime.
Maintenance and temperature control
High-quality disinfection is impossible without the proper technical condition of the equipment. Regular treatment extends the life of the refrigerator by preventing corrosion and dirt from fouling the heat exchanger. However, in addition to cleanliness, temperature conditions are critical. In treatment rooms, the temperature in the refrigeration chamber must strictly comply with the requirements of the drug manufacturer (usually from +2 to +8 °C).
For control, thermometers or temperature indicators are used, the readings of which are also recorded daily in a log. If after wet cleaning the refrigerator does not reach temperature for a long time, this may indicate a malfunction of the thermostat or a freon leak. In such cases, operation of the equipment is prohibited until the malfunction is eliminated, and the drugs must be moved to a backup refrigerator.
Modern medical refrigerators are often equipped with a monitoring system that signals when temperature thresholds are exceeded. However, you cannot rely only on electronics: once a year it is recommended to check the built-in sensors or compare their readings with a reference thermometer. Equipment calibration This is a mandatory requirement for certification of a medical institution.
Is it possible to wash a refrigerator without turning it off? it?
Technically modern No Frost systems allow you to wash the chamber without completely defrosting, but for high-quality disinfection and safety (eliminating the risk of electric shock and water getting into the electronics), it is recommended to completely disconnect from the network.
What is the minimum exposure of the disinfectant on the internal walls?
The minimum exposure time depends on the specific product and processing mode. For most modern HAC-based agents in the viral mode, the time ranges from 15 to 30 minutes. For chlorine-containing drugs in tuberculosis mode, the time can reach 60 minutes. The exact data is always indicated in the instructions for the specific packaging of the drug.
Can vinegar be used to treat a medical refrigerator?
The use of table vinegar in medical institutions to disinfect refrigerators is prohibited. Vinegar is not included in the list of approved disinfectants for health care facilities, does not have a certificate of conformity for medical purposes and does not guarantee the destruction of pathogenic microflora in the required spectrum.
What to do if the smell of chemicals remains after treatment?
If after airing and wiping with clean water the smell of chemicals persists, it is necessary to repeat the wiping procedure with distilled or boiled water water. It is impossible to load medications into a refrigerator with a foreign odor, since the packaging of the medications can adsorb volatile substances. It is possible to use activated carbon to absorb residual odors.
Is it necessary to remove the rubber seals for washing?
It is not recommended to remove the rubber seals (cuffs) of the door unless necessary, since it is difficult to reinstall them correctly, ensuring tightness. The treatment is carried out by carefully bending the folds of the seal and wiping them with a rag containing a disinfectant. Removal is allowed only during deep general cleaning, followed by checking the fit of the door.
How often do you need to change the rags for processing?
The rags for processing medical equipment must be marked, used once (or after each procedure go through a full cycle of washing and disinfection). Using the same dirty rag for different refrigerators or different areas inside the chamber is strictly prohibited to avoid cross-contamination.