Respond to a first-aid cover gap on an Irish shift
A trained first aider calls in sick shortly before a shift. The supervisor needs to know whether the remaining cover is adequate for the risks, workforce, layout and access to external medical help. A roster vacancy is the trigger for a decision, not a universal instruction to close the site or an excuse to assume any worker can replace a trained first aider.
This guide applies to the Republic of Ireland. The HSA's first-aid FAQ says the risk assessment should consider numbers employed, nature and degree of hazard, workplace size and location, shift arrangements and distance from medical services. It also says foreseeable leave is not a temporary or exceptional circumstance: where the assessment identifies a need for occupational first aiders, adequate cover should be planned for such absences. There is no universal staffing ratio asserted here.
Find the requirement for this shift
Open the current first-aid assessment and safety statement. Check the people actually present, tasks planned, risk level, site layout, isolated work and expected emergency response time. A small office shift and a high-risk maintenance shift may need different cover even at the same site. Confirm the qualifications and availability of the remaining named first aiders, including whether they will be in the relevant area for the whole shift.
Do not treat a certificate expiry alert as the only relevant fact. A qualified person may be assigned off site, unavailable on a break or covering another building. The operational question is whether the assessed provision can be delivered when it is needed.
Put immediate controls in place
If a gap exists, identify a competent available replacement, adjust staffing or activities, or change the work arrangement while the assessment is reviewed. An employer may need to postpone higher-risk work until suitable cover is in place. The decision should be proportionate to the hazard and made by someone with authority. Do not designate an untrained worker as an occupational first aider merely because they volunteer.
Tell supervisors and workers how to summon help, where equipment is and what changed for this shift. Check that emergency numbers and access routes work. If cover depends on another nearby site or service, confirm actual availability and travel time rather than assuming an arrangement exists. Record the person who verified the alternative.
Document the decision
Keep the date, shift, absent person, assessment reference, remaining cover, changed tasks, interim arrangement, authoriser and communication. If the arrangement has a time limit, state it. When the planned first aider returns or a replacement is assigned, close the exception with a new check. A record should explain why the workplace continued or changed activity, not just that someone was called.
Protect health information. The team normally needs to know that cover is unavailable, not why a particular colleague is absent. Keep medical details outside a broad safety roster. Review repeated gaps to determine whether the planned staffing is adequate for predictable leave and shift patterns.
Avoid false certainty from a headcount
The HSA's risk-based approach means a simple “one first aider per X staff” formula can be misleading. Consider whether workers are spread across floors, whether hazardous tasks run simultaneously, whether lone work occurs and whether the first aider can leave their own critical duty. A low headcount may still have high risk; a larger low-risk site may have different needs. The employer's current assessment should justify the arrangement.
If work changes during the shift, revisit the cover decision. A planned desk-only day may become a maintenance emergency. Give workers a clear route to stop or escalate a task that exceeds the temporary arrangement. Record the change as a new decision rather than assuming the morning assessment remains valid.
Example: a production shift
A site normally has two trained first aiders on a production shift. One is unexpectedly absent while the other is scheduled in a separate building. The manager reviews the current risk assessment and the planned high-risk work. They move the remaining first aider to the active area, delay a task requiring more immediate cover, brief supervisors and record the arrangement. If the remaining first aider leaves early, the shift is reassessed. The file does not assert that “one is always enough.”
The mapped Complys Ireland health and safety page is the product page for assessing training and record workflows. The existing occupational first-aid overview owns general requirements; this page owns the immediate lost-cover response. No software is claimed to determine adequate cover or replace the employer's risk assessment.
Plan for predictable absences before they occur
The HSA distinguishes foreseeable leave from an exceptional gap. Use the shift roster and annual leave plan to identify weeks when cover would fall below the assessed need. Arrange trained relief in advance and check that the person can actually reach the relevant work area. A name on a corporate list is not adequate if that person is assigned to another site during the same shift.
After an unplanned gap, review whether the contingency worked. Did workers know the changed contact? Was first-aid equipment accessible? Did the adjusted task schedule stay within the temporary arrangement? Record lessons and update the plan if repeated absences expose a structural staffing problem. The aim is reliable response capacity, not simply clearing an alert in a system.
If the workplace has several buildings or a mobile crew, check travel and communication time rather than only counting names on a roster. The first aider's normal role may make immediate response impractical. The assessment should reflect the real shift layout and be revised when workers or activities move.