Testing changes for Covid-19 in hospital settings

Tuesday 26th April 2022 11:01 pm
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The approach to testing for Covid-19 in hospital settings in Wales has been updated as vaccination has proven to be highly effective at reducing the risk of symptomatic illness, severe disease, hospitalisation and mortality.

As well as the vaccine, new anti-viral treatments have helped to reduce the severity of disease, particularly for those who are most likely to be at risk of adverse outcomes.

It is hoped the changes will support health boards' risk mitigation strategies and provide a significant boost to routine and emergency care in hospital settings, as well as the flow of patients through hospital treatment and, for some, their discharge into social care.

This could have a positive impact on the whole health and social care sector, which the Health Minister said has been under ‘extraordinary pressure’ in recent weeks.

The testing changes will affect pre-admission testing for elective procedures, admission for unscheduled care, post-admission testing for asymptomatic and symptomatic patients, and discharge testing arrangements.

The testing changes are being made to support health boards balance the risks from Covid-19 alongside the need to deliver routine and emergency healthcare safely, as well as the impact that testing regimes have on individual patient’s care.

The new guidance is based on the best scientific, public health and expert evidence available at this time, but also recognises the importance of local decisions to be made, depending on risks such as nosocomial rates, community transmission rates, or vulnerability of patients.

Pre-admission testing will remain, but the type of test will be based on the patient’s individual risk from infection.

The changes to testing will see asymptomatic patients who are having a surgical procedure or chemotherapy tested using a PCR or Point of Care Test (POCT) 72 hours before admission and asked to self-isolate until their procedure.

For some asymptomatic low risk patients being admitted for low-risk procedures, Health Boards may decide a negative LFD on or just before admission may be sufficient.

Testing on unscheduled admission will also see changes, with patients with respiratory symptoms being tested for a range of illnesses (COVID-19, Influenza, RSV as a minimum) on one PCR or POCT swab.

Patients without respiratory symptoms should be tested for Covid-19 only, using a LFD on admission.

Asymptomatic testing will also see changes. In line with changes in the general public and in care settings, after patients are admitted, no further routine asymptomatic testing is advised unless a local decision deems it necessary.

Symptomatic testing will continue, with patients who develop symptoms being tested with a PCR or POCT for Covid-19, Influenza, RSV or a full multiplex as clinically directed.

Health boards are being encouraged to work with care home providers on discharge testing arrangements.

Patients who have tested positive for Covid on or since admission can assume non-infectivity when:

• Symptoms have resolved, absence of a fever, plus 10 days have elapsed or a locally decided testing protocol is used to reduce the isolation period down from 10 days in patients who meet the clinical criteria above. These tests can be LFD or other rapid antigen detection tests. Patients should have two negative tests taken 24 hours apart as well as showing clinical improvement as above, before being moved out of isolation and discharged.

Asymptomatic patients who have not previously tested positive for Covid to be tested within 24 hours of planned discharge to the care facility. Appropriate rapid PCR/POCT for Covid-19 can be used in the absence of LFD testing.

The changes to testing in hospital settings are being made now as during high community incidence of Covid-19 there has been a relatively modest impact on hospital admissions and mortality, whilst the extent of nosocomial associated mortality has also significantly reduced.

The advice that all patient facing health care staff should test using LFDs twice weekly is regularly reviewed and continues to be advised.

Health Minister Eluned Morgan said: “The pandemic has not gone away and we are still learning to live with Covid-19, but the current public health situation allows us to make appropriate changes to the testing regime that supports Health Boards to implement the necessary infection prevention and control (IPC) strategies that will have a positive impact on routine and emergency care.

“We are making these changes based on the best scientific, public health and expert evidence available at this time, changes that enable local decisions to support the best possible patient care.

“Thanks to our incredible vaccination programme the risk to the NHS of being overwhelmed is now greatly reduced and we can make changes to the testing regime within the context of other infection prevention and control measures.”

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