Antimicrobial resistance (AMR) is a major threat to public health, with AMR-infections claiming an estimated 700,000 lives per year globally. This figure is expected to increase to 10 million by 2050 potentially. Combatting antimicrobial resistance is therefore high on policy agendas internationally and one of the key means advocated is judicious antibiotic prescribing. Point of Care Tests for infection (POCT), either direct (i.e. PCR for SARS COV2 or Bacterial ) or indirect (i.e Procalcitonin for bacterial infection) are promising antimicrobial stewardship tools,offering rapid diagnostics for respiratory infection. In practice, they are underutilised and have not increased antibiotic-free days in ICU. The technology is fairly new, therefore it is possible that clinicians do not know when and how to deploy it optimally. This will address the evidence for antibiotic prescribing behavioural change in the ICU, and incorporation into future study design and as an educational tool.