Determination of the need for disinfectants, sterilizing agents, means for presterilizing cleaning and skin antiseptics
Disinfection of surfaces, furnishings, upholstered furniture is carried out in accordance with the requirements of disinfection measures for various infectious diseases, approved in the prescribed manner.
To determine the need for disinfectants for the treatment of premises, it is necessary to calculate the total area of the inner surface of the room (S) to be disinfected using the formula:
It is taken into account when it comes to processing the ceiling.
Wall area ( ) is calculated by the formula:
where
a is the floor length;
b - floor width;
h is the height of the room.
It is allowed instead of the height of the room to handle the walls to a height of no more than 2 m.
Disinfection of medical furniture (couches, beds, wheelchairs, mattresses with a special coating, chairs, bedside tables) is carried out in the institutions of a hospital profile in case of discharge or death of an infectious patient.
The surface area of medical furniture to be disinfected ( ), calculated by the formula:
where
a is the length of the side of the piece of furniture;
b is the width of the side of the piece of furniture;
C - coefficient equal to 1 - 4, depending on how many sides are processed.
The need for a disinfectant for surface treatment during preventive disinfection:
where
- total amount of disinfectant required for disinfecting surfaces of rooms, l;
N is the consumption rate of the disinfectant solution of the disinfectant (according to the instructions for use of specific products and regulatory documents), ml / m2;
K - coefficient equal to the concentration of the disinfecting solution for the drug,%;
C - the number of days in the billing period (month, quarter, half year, year);
S - the area of the processed internal surfaces, m2;
- the multiplicity of processing per day:
- rooms of the admission department of the surgical hospital - 2 times a day;
- for chambers with purulent-septic diseases and postoperative purulent complications of surgical departments, aseptic chambers - 1 time per day;
- hospitals and departments of newborns and premature babies - 1 time per day;
- changing table, baby scales - after each examination of the newborn;
- operating rooms, delivery rooms - after each operation, the reception of childbirth, if there is one delivery room - 1 time per day in the absence of childbirth;
- postpartum physiological department with separate and joint stay of mother and child, separation of newborns - after the third feeding of newborns;
- Chambers of obstetric hospitals - 1 time per day;
- chambers of infectious departments - 2 times a day.
The need for a disinfectant for cleaning and disinfecting surfaces during general cleaning with a multiplicity of processing 1 time per week:
where
- the total amount of disinfectant required for disinfecting the surfaces of rooms, l ;.
N is the consumption rate of the disinfectant solution of the disinfectant (according to the instructions for use of specific products and regulatory documents), ml / m2;
K - coefficient equal to the concentration of the disinfecting solution for the drug,%;
S - the area of the processed internal surfaces, m2;
H - the number of weeks in the billing period (month, quarter, half year, year), if the general cleaning is carried out weekly. If cleaning is carried out 1 or 2 times a month, then H is equal to 1 or 2, respectively, and when calculating the number of disinfectants per quarter, semester or year, the calculated monthly volume must be multiplied by the number of months in the quarter, semester, and year, respectively.
In determining the need for disinfecting means for disinfecting sanitary equipment, the external surfaces of technological containers proceed from the standards for calculating the areas of sanitary equipment:
- one bath - 3 m2;
- one toilet bowl or bidet - 0.5 m2;
- one sink - 0.5 m2;
- one shower tray - 1 m2.
The need for a disinfectant to disinfect the surface of sanitary equipment:
- total amount of disinfectant required for disinfection of surfaces of sanitary equipment, l;
N - the rate of consumption of the disinfectant solution (according to the instructions for use of specific drugs and regulations), ml / m2;
K - coefficient equal to the concentration of the disinfecting solution for the drug,%;
S is the total area of sanitary equipment being processed, m2;
- the multiplicity of processing per day;
C - the number of days in the billing period (month, quarter, half year, year).
The need for a disinfectant to disinfect the internal surfaces of technological containers (for disinfection, soaking, cleaning):
where
- total amount of disinfectant required for disinfection of process tanks, l;
- the volume of the disinfectant solution required to fill the containers, l ;.
K - coefficient equal to the concentration of the disinfecting solution for the drug,%;
Q is the number of treatments in the billing period (month, quarter, half year, year).
Determination of the need for disinfectant for laundry disinfection.
The consumption rate of the working solution of a disinfectant in disinfecting linen contaminated with secretions and blood in infections of bacterial and viral etiology is 4 liters per 1 kg of dry laundry and 5 liters per 1 kg of dry laundry with tuberculosis, cholera and other intestinal infections.
The need for a disinfectant for disinfecting linen:
where
- total amount of disinfectant for disinfecting linen, l;
K - coefficient equal to the concentration of the disinfecting solution for the drug,%;
- consumption rate of disinfectant solution for disinfecting linen, l / kg;
- the number of processed linen per day, kg;
C - the number of days in the billing period (month, quarter, half year, year).
Determination of the need for disinfectant for disinfecting dishes.
The consumption rate of disinfectant solution for disinfecting dishes is 2 liters per 1 set (2 plates, a glass or cup with a saucer, 2 spoons, a fork, a knife).
The need for a disinfectant for disinfecting dishes:
where
- total amount of disinfectant necessary for disinfecting dishes, l;
K - coefficient equal to the concentration of the disinfecting solution for the drug,%;
2 - the rate of consumption of disinfectant solution for 1 set of dishes, l;
KP - the number of sets of dishes per day, equal to the number of patients x 3;
C - the number of days in the billing period (month, quarter, half year, year).
Determination of the need for a disinfectant for disinfecting nursing items, toys, cleaning equipment, laboratory glassware.
According to current regulations:
- toys are immersed in the solution, closed with a lid, preventing them from ascending;
- thermometers, patient care items (ships, ducks, poilniki, heating pads, ice bubbles, bedplates, oilcloths, oilcloth mattress covers, oilcloth bibs) are completely immersed in the solution;
- laboratory tools, needles, capillaries, glass slides, test tubes, melangera, counting chambers, photoelectrometer cuvettes, pipettes, tips, rubber pears, cylinders, etc., disinfect the dishes after each use.
Used objects are immersed in a disinfectant solution. Objects that have internal channels are filled with a disinfectant solution (in a volume of 5 to 10 ml) with a pear to remove blood and serum.
The actual consumption of the disinfectant solution for complete immersion of the product into the solution and filling its cavities is determined by measuring the internal volume of the containers used for disinfection.
The need for a disinfectant for disinfection of nursing items, toys, cleaning equipment, laboratory glassware:
where
- total amount of disinfectant required for disinfection of nursing items, toys, cleaning equipment, l;
K - coefficient equal to the concentration of the disinfecting solution for the drug,%;
- the volume of the disinfectant solution required for complete immersion of the product in the solution and filling its cavities, l;
C - the number of days in the billing period (month, quarter, half year, year).
Determination of the need for funds for presterilizing cleaning and disinfection of reusable medical products.
According to the established standards, the consumption of a disinfectant or detergent solution, taking into account the complete immersion of the product in the solution and filling its cavities is:
- one syringe - 0.1 l;
- one blood transfusion system - 0.5 l;
- one set for examination of the cervix - 2.5 liters;
- one set for receiving childbirth - 3 l;
- set for abdominal gynecological surgery - 10 liters;
- set for obstetric surgery (cesarean section) - 6 l;
- set to restore the perineum (after childbirth with perineo-or episiotomy) - 3 liters.
Determination of the need for means for presterilizing cleaning and disinfection of reusable medical devices is based on the actual consumption of disinfectant solution required for complete immersion of the product into the solution and filling its cavities, which is determined by measuring the internal volume of the containers used for processing.
The need for funds for presterilizing cleaning and disinfection of reusable medical devices:
where
- the total amount of means for presterilizing cleaning and disinfection of reusable medical devices, l;
K - coefficient equal to the concentration of the disinfectant or detergent solution for the drug,%;
- consumption of disinfectant or detergent solution for a set of medical products with full immersion, l:
- for dental offices, clinics - 1 set = 1 visit;
- for endoscopic cabinets, departments 1 set = 1 study;
- for surgical offices of clinics, departments of an in-patient department 1 set = 1 operation;
- the actual shelf life of the disinfectant or detergent solution in days (determined empirically from the time of the first immersion of medical devices in the solution to the visual change of the solution - turbidity, color change, the appearance of flakes, sediment); for solutions with a shelf life of 1 day ;
C - the number of days in the billing period (month, quarter, half year, year).
Determination of the need for a disinfectant for disinfection of medical products for single use, dressing contaminated with infected biological fluids, excretions, food debris, vomiting, etc.
Disposable medical devices, dressing material contaminated with infected biological fluids, biological excretions, food debris, vomit, etc. belong to class B (hazardous, hazardous waste) or B (extremely hazardous waste) and are subject to decontamination.
The need for a disinfectant for disinfecting disposable medical products:
where
- total amount of disinfectant for disinfecting disposable medical products, l;
K - coefficient equal to the concentration of the disinfecting solution for the drug,%;
- the rate of consumption of disinfectant solution for 1 single-use medical product (or set) corresponds to the norms of consumption of the working solution for disinfecting reusable medical products, l;
- the number of processed medical devices single use per day;
C - the number of days in the billing period (month, quarter, half year, year).
Determination of the need for a disinfectant for disinfection of secretions, food debris, dressing contaminated with infected biological fluids.
When determining the need, effective consumption rates of the disinfecting solution (l) are used: from 4 to 5 l per 1 kg for disinfecting a dressing material contaminated with infected biological fluids, and 2 l per 1 kg for disinfecting secretions, food debris, vomit, and also the norms specified in the methodological instructions (instructions) for the use of a specific product.
The need for a disinfectant to disinfect the secretions, food debris, vomit, etc. and dressing material contaminated with infected biological fluids:
where
- total amount of disinfectant for disinfection of secretions, food debris, dressing material, l;
K - coefficient equal to the concentration of the disinfecting solution for the drug,%;
- consumption rate of disinfectant solution for disinfection 1 kg of discharge, food debris, dressing material, l;
- the number of processed dressing material (discharge, food debris) per day, kg ;.
C - the number of days in the billing period (month, quarter, half year, year).
The need for a dry disinfectant (powders, granules) for disinfection of secretions, food debris, dressing material contaminated with infected biological fluids:
where
- total amount of disinfectant for disinfecting secretions of food debris, dressing material, kg;
- the rate of consumption of disinfectant for disinfection 1 kg of discharge, food debris, dressing material, kg;
- the number of processed dressing material (discharge, food debris) per day, kg ;.
C - the number of days in the billing period (month, quarter, half year, year).
Determination of the need for disinfectant for disinfecting containers.
The need for a disinfectant to disinfect containers (the calculation is based on the area of reusable containers):
where
- total amount of disinfectant necessary for disinfecting containers, l;
N is the consumption rate of the disinfectant solution of the disinfectant (according to the instructions for use of specific products and regulatory documents), ml / m2;
K - coefficient equal to the concentration of the disinfecting solution for the drug,%;
- the total area of the reusable container to be disinfected (standard - 6 m2), m2;
Q - the number of decontamination procedures in the billing period (day, month, quarter, half year, year).
Determination of the need for a means for presterilization and final cleaning of endoscopes.
Need for presterilization and final cleaning of endoscopes:
where
- the total amount of funds required for presterilization or final cleaning of endoscopes, l;
K - coefficient equal to the concentration of the solution solution of the drug,%;
- the volume of the solution means for complete immersion of the endoscope with filling its internal channels, l ;.
- the actual shelf life of the cleaning solution in days (determined empirically from the time of the first immersion of medical products in the solution to the visual change of the solution - turbidity, color change, the appearance of flocks, sediment) for solutions with a shelf life of 1 day .
C - the number of days in the billing period (month, quarter, half year, year).
Determination of the need for a disinfectant for disinfecting a high level of endoscopes, sterilizing reusable medical devices, endoscopes and tools for them.
The need for a sterilizing agent for disinfecting a high level of endoscopes, sterilizing reusable medical devices, endoscopes and tools for them:
where
- total amount of sterilizing agent required for disinfection of high level endoscopes and instruments for them, sterilization of reusable medical devices, endoscopes and instruments for them, l;
K - coefficient equal to the concentration of the sterilizing solution for the drug,%;
- the volume of the disinfectant, sterilizing solution, necessary for the complete immersion of a reusable medical device or endoscope and instruments for it with filling of internal channels and cavities during high-level disinfection or sterilization, l ;.
- the actual shelf life of the disinfectant, sterilizing solution in days (determined empirically from the time of the first immersion of medical devices in the solution to the visual change of the solution - turbidity, color change, the appearance of flakes, sediment) for solutions with a shelf life of 1 day ;
C - the number of days in the billing period (month, quarter, half year, year).
The need for sterilizing (disinfecting) means produced in the form of ready-made sterilizing (disinfecting) solutions intended for TLDs of endoscopes, sterilization of reusable medical products, including endoscopes and instruments for them:
where
- total amount of sterilizing (disinfecting) agent required for TLD or sterilization of endoscopes or reusable medical device, l;
- the volume of sterilizing (disinfectant) means necessary for complete immersion of the multiple-use device or endoscope and tools for it with filling of internal channels and cavities during high-level disinfection or sterilization, l;
- the actual shelf life of the disinfectant, sterilizing solution in days (determined empirically from the time of the first immersion of medical devices in the solution to the visual change of the solution - turbidity, color change, the appearance of flakes, sediment); for solutions with a shelf life of 1 day ;
C - the number of days in the billing period (month, quarter, half year, year).
Determination of the minimum need for skin antiseptics for treating the hands of surgeons, operating nurses, midwives, other specialists involved in surgery, childbirth, nurses of treatment rooms, intensive care units, reanimation, antiseptics for treating patients' skin.
The rate of consumption of antiseptics for the processing of 1 pair of hands of medical personnel / 1 surgical field:
- alcohol-containing antiseptic:
- for processing 1 pair of hands of a member of the operating team, delivery team - 10 ml;
- for treating the hands of a nurse before injection - 5 ml;
- for processing 1 surgical field 5 - 80 ml (depending on the area of the treated skin);
- for processing 1 injection field - 5 ml;
- liquid soap - skin antiseptic:
- for washing 1 pair of surgeons' hands - 10 ml;
- for hygienic washing of 1 pair of hands of medical personnel - 5 ml.
The need for alcohol-containing antiseptics for the treatment of the hands of surgeons, operating nurses, midwives and other professionals involved in surgical interventions, childbirth:
where
- total amount of alcohol-containing antiseptic for processing hands before surgery, l;
- the number of operations;
- the number of members of the operating team.
The need for alcohol-containing antiseptics for treating the hands of members of the dressing team (surgeon, resuscitator, attending physician of the surgical unit of LPO, nurse treatment room, intensive care unit, reanimation) before dressings of postoperative wounds:
where
- total amount of alcohol-containing antiseptic for processing hands of staff before dressings of postoperative wounds, l;
- the number of operations;
- the number of members of the dressing brigade ;.
7 - the minimum number of dressings during the initial wound healing.
The need for alcohol-containing antiseptics for the treatment of the hands of a nurse of the procedure room, intensive care unit, resuscitation before injections:
where
- total volume of alcohol-containing antiseptic for treatment of hands before injections, l;
C - the number of days in the billing period (month, quarter, half year, year);
- The average number of injections per day.
The need for alcohol-containing antiseptics for treatment of the surgical field before surgery:
where
- total volume of alcohol-containing antiseptic, necessary for the treatment of operating fields, l;
- the number of operations;
W is the average amount of alcohol-containing antiseptic required for treatment of the surgical field, ml.
The need for alcohol-containing antiseptics for the treatment of postoperative wounds:
where
- total amount of antiseptic for treatment of postoperative wounds on dressings, l;
- the number of operations;
W is the average amount of alcohol-containing antiseptic required for treatment of the surgical field, ml;
7 - the minimum number of dressings during the initial wound healing.
The need for alcohol-containing antiseptics for the treatment of the injection field:
where
- total volume of alcohol-containing antiseptic for processing injection fields, l;
C - the number of days in the billing period (month, quarter, half year, year);
- The average number of injections per day.
Determination of the need for liquid soap - skin antiseptics for washing the hands of surgeons, operating nurses, midwives and other professionals involved in surgical interventions, delivery of labor before surgical interventions, childbirth:
where
- total volume of liquid soap - skin antiseptic for washing hands before surgery, l;
- the number of operations;
- the number of members of the operating team.
The need for liquid soap - skin antiseptics for washing hands of members of the dressing brigade (surgeon, resuscitator, attending physician of the surgical unit of LPO, nurse of the treatment room, intensive care unit, reanimation) before dressings of postoperative wounds:
where
- total volume of liquid soap - skin antiseptic for washing hands before dressings of postoperative wounds, l;
- the number of operations;
- the number of members of the dressing brigade;
7 - the minimum number of dressings during the initial wound healing.
The need for liquid soap - skin antiseptics for washing the hands of a nurse of a treatment room, intensive care unit, resuscitation before injections:
where
- total volume of liquid soap - skin antiseptic for washing hands before injections, l;
C - the number of days in the billing period (month, quarter, half year, year);
- The average number of injections per day.
To facilitate the work on disinfection and sterilization, medical registers can be kept in the LPO and the attached calculation forms can be used:
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