managing storage temperature excursions for medicines storage tempe… · storage of medicines •...
TRANSCRIPT
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Managing storage temperature excursions
for medicines
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Storage of medicines
• The supply chain between the manufacturer and the pharmacy department is usually well managed and controlled
• Once the medicines have left the pharmacy strict temperature control cannot always be achieved.
• Other considerations apply e.g.: • Security and control has to prevent unauthorised access
but enable appropriate access
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Storage of medicines • Nonetheless, medicines should be stored under
conditions which assure the quality of the medicine until
the end of administration to the patient.
• Any decision to store a medicine outside the
recommended temperature range must be informed by a
robust risk management approach to safeguard
medicines, patients and public health.
• A pharmacist who makes such a decision must be able
to defend it if challenged
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“Medicines are safely and securely distributed from a pharmacy and stored in a secure and suitable environment prior to administration. SOPs and systems, informed and monitored by the pharmacy team, underpin the legal, secure and appropriate handling of medicines wherever they are stored (wards, outpatient clinics, patients’ lockers etc.)”
Professional Standards for Pharmacy Services (Royal Pharmaceutical Society 2012)
“the lack of effective temperature monitoring of medication storage areas on some wards had the potential to impact on the safety of relevant medicines to patients”
Care Quality Commission report (2013)
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How does storage temperature relate to shelf-life?
S (T2) = T (ST1) / Q10 (T2-T1/10)
where
• T1= max storage temp allowed by manufacturer
• T2= actual storage temp
• S(T1) = shelf-life at T1
• S(T2) = reduced shelf life
• Q10 = reaction rate
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“…………..you can’t make as recipe for something as
complicated (as surgery). Instead, you can make a recipe
for how to have a team that’s prepared for the
unexpected…….”
Atul Gawande
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Identification of risks
Out of range storage? • Higher temperatures
• Lower temperatures
• Humidity
• Freezing
• Time
• Physico-chemical stability
• Microbiological integrity
Risks to patients • Degradation of medicines
• Loss of potency
• Toxicity/harmful degradation products
• Microbial proliferation
Consequences of loss of stock • Treatment delay/interruption
• Costs
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Prevention is better than cure: Trust Medicines Policy
• Standards
• Appropriate facilities
• Accountability and responsibility
• Understanding and awareness
• Monitoring & audit
• Action to be taken if……& possible outcomes
• Reporting, monitoring and review
• Risk Register
• Clinical & £
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“…………..you can’t make a recipe for something as
complicated as accurately quantifying all the possible
consequences for patients if a medicine is incorrectly
stored for an unknown length of time in unknown
conditions . Instead, you can make a recipe for how to
have a team that’s prepared for the unexpected…….”
Tim Root
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What if?
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Take action to prevent further damage
• correct the problem (close the fridge door!)
• move the stock elsewhere
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And then?
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What do you need to know? • What happened
• Medicine
• Many can now be stored up to 30C
• Brand/manufacturer
• Max Temp & time
• What patients
• Need for medicine
• Available alternatives
• Time to replace
• (Cost)
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Assess the risk to the medicines
• Check the SmPC
• Ask the manufacturer
• UKMi Fridge Database
• Q10 calculations
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What next with at-risk stock?
• Mark & reduce expiry?
• Quarantine ?
• Destroy?
• Use the manufacturer’s original expiry?
• Document the decision
• Post incident risk assessment - learning points?
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Summary: • Assess the risks locally
• Develop robust systems to control the risks
• Document everything • Trust-endorsed medicines policy
• Including how to respond to an incident
• Trust Risk Register
If it happens
• Data & information
• Simple decision support tool
• Documented decision
Professional judgement
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Next steps?
• Decision support tool?
• Duthie 3 (RPS – October 2017)
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References
1. Risk management of Medicines Stored in Clinical Areas
Edition 1 June 2015 NPQAC
2. Guidelines for safe management of products requiring
refrigerator storage between 2 and 8C when these
products have been found stored above or below these
temperatures
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