Introduction Ex SAIF SAREEA 3 was a joint British-Omani military exercise involving approximately 5500 British personnel deployed to Oman over a 6-month period. Role 1 medical care was provided by medical treatment facilities (MTFs) deployed with medical equipment as per the UK 300 medical module.

Method Retrospective analysis was undertaken of prospectively collected equipment usage data from two Role 1 MTFs in Duqm (MTF 1) and Muaskar Al Murtafa (MTF 2) camps over a period of 6–8 weeks. Data were analysed alongside routinely collected epidemiological data (EPINATO) during the deployment. Equipment used in addition to the module was also recorded.

Results MTF 1 used 50 out of the 179 different items from the module over the 8-week period. MTF 2 used 45 out of the 179 different items from their module over the 6-week period. The most commonly used items across the sites were non-sterile examination gloves, plastic aprons, tympanic thermometer probe covers, disinfectant wipes and self-adhesive plasters. Extramodular items (blunt fill needle, water pump sprayer, Jelonet gauze and stool specimen pot) accounted for 5% of all equipment used in MTF 1.

Conclusion The study showed that the 300 module accommodates 95% of Role 1 patients’ needs but highlights the requirement for dedicated equipment for the treatment of heat casualties if deemed likely and blunt fill/filter needles for the administration of parenteral medication. Commanders must perform a thorough medical estimate and risk assessment prior to deployment to ensure that the 300 medical module is likely to provide the necessary equipment and supplement the module if required.