Donor milk banks: service operation

1.1 Use Hazard Analysis and Critical Control Point (HACCP) principles in all quality assurance processes.

1.2 Clean and store all donor milk containers and equipment according to local protocols based on HACCP principles.

1.3 Validate, calibrate and maintain all equipment used in donor milk handling and processing and keep records of this. Ensure that the equipment is used according to the manufacturer's instructions.

1.4 Regularly inspect all equipment used in donor milk handling and processing, following the manufacturer's instructions. Ensure that all equipment that may affect temperature or contamination levels has sensors and alarms so that constant conditions can be maintained.

1.5 All milk bank staff should have ongoing training that is relevant to their job and is recorded. Training should cover good practice and should ensure that each staff member:

1.6 Train milk bank staff in HACCP principles, food hygiene and pasteurisation, and provide ongoing support so that practices reflect these principles.

1.7 All donor milk administered in the NHS should be from milk banks that can demonstrate adherence to the NICE guidance on the operation of donor milk banks.

1.8 Implement a quality control system that is followed by all staff and is reviewed regularly. It should encompass:

1.9 When promoting the donation of breast milk, aim to reach as many potential donors as possible through a variety of channels, including:

1.10 Use clear, non-technical language when communicating the use of donor milk and the process of donor milk banking in any written information and activities.

1.11 Follow the stepped screening process detailed in recommendations 1.12 to 1.21 when recruiting donors.

1.12 Advise a potential donor that she is not eligible to donate milk if she:

1.13 Using a process of informal interview, referring to medical sources (with consent) if necessary, ask the potential donor questions on the topics that follow. Use the information she gives to make a balanced decision about her eligibility to donate based on possible risks to recipients and/or the results of subsequent serological tests (see recommendations 1.16 and 1.17). Ask questions about:

1.14 If a potential donor is donating previously expressed breast milk, ask her to answer the screening questions (recommendations 1.12 to 1.13) for the period when the milk was expressed.

1.15 Conduct the screening interview, detailed in recommendations 1.12 and 1.13, with potential donors at a mutually acceptable time and place, either face-to-face or by telephone.

1.16 When donors first contact the milk bank about donating milk, explain that serological testing is mandatory to reduce the risk of passing on infections. Obtain informed consent before testing.

1.17 Undertake serological testing of all potential donors for the following and exclude women from donating who test positive for:

1.18 Perform all serological screening tests at the time of enrolling for donor milk banking; do not rely on antenatal test results.

1.19 All tests should be undertaken in laboratories with clinical pathology accreditation (CPA).

1.20 Ensure that laboratories communicate the results of serological testing clearly and that they provide appropriate interpretive comments.

1.21 Give serological test results to potential donors either in person or by telephone (unless they prefer to receive them in writing). If needed, offer further help and support based on local protocols, including information about counselling and local support groups.

1.22 Laboratories should archive samples of blood received from donors.

1.23 Before accepting a donor's milk, obtain her consent for the processing and intended use of the donated milk. Advise her that once donated, milk will not be returned to her.

1.24 While a donor continues to donate, ask regularly about her general health and the exclusion criteria detailed in recommendations 1.12 to 1.13. Advise her that if her status or circumstances change in relation to these, she should contact the milk bank immediately.

1.25 Do not routinely repeat serological tests while the donor is donating milk.

1.26 Provide all new donors with training, preferably face-to-face with additional information by telephone and in writing. Arrange training at a time and place suitable for both donor and trainer.

1.27 Training for new donors should cover:

1.28 Provide ongoing support to all donors according to their individual needs until no longer required. This may include:

1.29 Offer additional support and information on milk collection to donors whose milk has significant or repeated microbial contamination.

1.30 Consider no longer accepting breast milk from donors who, despite support, consistently supply:

1.31 Advise donors to contact the milk bank to discuss suspending or stopping their breast milk donation if they develop a fever or have contact with a viral exanthematous disease.

1.32 Advise donors who begin taking any medication that they should contact the milk bank to discuss suspending or stopping their breast milk donation. Use appropriate reference sources, such as the BNF for Children, the Drugs and Lactation Database LactMed or the UK Drugs in Lactation Advisory Service.

1.33 Advise donors to contact the milk bank to discuss suspending or stopping their breast milk donation if they develop lesions or infections of the breast (including mastitis or herpes).

1.34 Provide donors who are stopping their breast milk donations with as much advice and support as needed.

1.35 Consider the size of the recipient population, the milk bank's stock levels, and the preferences of the donor when discussing how long a woman can donate milk.

1.36 Advise donors to collect expressed milk rather than 'drip' milk (milk that is passively collected from one breast while the baby feeds at the other) for donation.

1.37 Actively encourage donors to hand express milk; however, accept pump-expressed milk if donors prefer this method.

1.38 Advise donors that expressed milk collected for donation should be frozen as soon as possible to maintain the nutritional and microbiological quality of the milk. If this is not possible (for example, because of storage capacity), advise donors to refrigerate samples collected over 24 hours, and then freeze the batch.

1.39 Advise donors that expressed milk for donation should remain frozen during storage at home, and if they have any concerns about storage conditions or freezer temperatures, they should discuss these with the milk bank.

1.40 Advise donors that frozen expressed milk should be transported to the milk bank as soon as possible. However, if necessary, expressed milk for donation can be stored before transport to the milk bank for up to 3 months in a domestic freezer, at −18°C or lower. If a donor does not have access to a domestic freezer at her home, she may be able to access freezers for milk storage at local donor milk depots or children's centres.

1.41 Advise donors that expressed milk can only be accepted by the milk bank if it has been collected and stored in milk collection containers provided by, or acceptable to, the milk bank.

1.42 Advise donors that collection containers for expressed milk should be used according to instructions provided by the milk bank.

1.43 Ensure that donors can check and document their freezer temperature every day; this may include providing a thermometer.

1.44 Define critical conditions for transport, including temperature and time limit, to ensure that donor milk remains frozen during transport.

1.45 Transport donor milk in secure, tamper-evident containers and packaging.

1.46 If donor milk is transported to the milk bank by a contracted third party, ensure that a documented agreement is in place to maintain the conditions needed.

1.47 Define in writing the milk bank's procedures for transporting and storing donor milk. Ensure that these procedures maintain the quality of the donor milk and allow accurate identification of samples. Keep records of inventory and distribution (see also recommendations 1.68 to 1.75 on tracking and tracing).

1.48 Collect expressed milk from the donors, preferably using an agreed transport provider (ideally a medical courier) or a member of staff from the milk bank. In some instances, donors may be required or may wish to deliver their own milk to the milk bank or depot, in which case they should also follow the milk bank's requirements for transport as outlined. In all cases, use consistent monitoring processes, including recording the journey time.

1.49 Collect expressed milk from either the donor's home (see recommendations 1.38 to 1.43) or from donor milk depots that have practices for monitoring freezers and maintaining standards for quality control, storage and security. Ensure that similar processes are in place in any location where the donor milk is stored.

1.50 Process all donated milk under hygienic conditions (a sterile environment is not necessary). Practise good hand hygiene at all times, and wear gloves whenever handling donor milk.

1.51 Check that donated milk arriving at the milk bank:

1.52 Store pasteurised and unpasteurised donor milk in separate freezers and refrigerators.

1.53 Store donor milk awaiting pasteurisation in the freezer at the milk bank (at −20°C) for no longer than 3 months from the date of expression.

1.54 Discard breast milk from donors who do not meet the selection criteria detailed in recommendations 1.12, 1.13 and 1.17.

1.55 Before testing and pasteurising, thoroughly thaw the donor milk, and keep in the refrigerator for no longer than 24 hours. Prevent the donor milk from reaching 8°C while thawing.

1.56 Only pool pre-pasteurised breast milk from the same donor.

1.57 Do not pool:

1.58 Before pasteurisation, test a sample from each batch of pooled donor milk for microbial contamination and discard if samples exceed a count of:

1.59 Ensure that laboratories communicate the results of microbial testing clearly and that they provide appropriate interpretive comments.

1.60 Seek help from microbiological laboratories to identify and investigate instances of significant or unusual contamination (for example, by undertaking further microbial tests).

1.61 Pasteurise donated milk at 62.5°C for 30 minutes in a human milk pasteuriser. Rapidly cool the milk to a temperature of 4°C or lower. Remove one bottle for testing if appropriate, then move the remainder of the batch to the freezer.

1.62 After pasteurising, store frozen donor milk for no longer than 6 months after the date of expression.

1.63 Do not open the lid of batches of pasteurised donor milk until the milk is to be used, unless it is to test the milk. If the milk is tested, discard the opened bottle.

1.64 Regularly test pasteurised donor milk for microbial contamination. Base the testing schedule on the volume and throughput of milk. Test:

1.65 Discard pasteurised donor milk that has a total viable microbial count of 10 CFU/ml or more.

1.66 Keep all donor milk in containers made of food grade materials.

1.67 Staff at the milk bank should not be responsible for adding anything to the donated milk.

1.68 Track donated milk from the donor through to the recipient hospital.

1.69 Tracking and monitoring of donor milk processing should include freezer temperatures, pasteurisation processes and stock control.

1.70 At all stages, donor milk containers should be labelled clearly for identification. Clearly identify milk that is ready to be used.

1.71 For each donor milk batch, keep the following records.

1.72 Label each container of pasteurised donor milk with the following information.

1.73 Only supply donor milk to hospitals or neonatal units that agree to comply with the tracking procedures for milk outlined by the milk bank.

1.74 The receiving hospital or neonatal unit should keep a record of how the donor milk is used. It should document for each bottle of donor milk: