Recording of basic observations such as pulse and blood pressure are required before and after any GI endoscopy as is standard custom and practice outlined in the BSG standards. This should always be done and recorded in the patient record. Dunkley I et al (2017) UK consensus on non medical staffing required to deliver safe quality assured care for adult patients undergoing gastrointestinal endoscopy. https://www.bsg.org.uk/resource/uk-consensus-on-non-medical-staffing-required-to-deliver-safe--quality-assured-care-for-adult-patients-undergoing-gastrointestinal-endoscopy.html
Endoscopy, specifically straight forward diagnostic upper GI endoscopy, is performed by an operator sedationist with a registered professional providing additional monitoring of the patient. Therefore monitoring patients during the procedure by non-invasive means such as pulse oximetry and NI blood pressure is common standard of care.
JAG recommends that all services develop their own operating policy regarding the amount of monitoring and sedation for all procedures, whilst ensuring that this is adhered to by all operators within the unit.