Final answer:
When a code purple is called, a sonographer's role is to be vigilant, report suspicious activity, and adhere to the hospital's protocol which may include locking down their area and checking identifications while continuing to provide diagnostic services.
Step-by-step explanation:
The role of a sonographer when a code purple is called outside their department can vary depending on the hospital's policy. However, code purple typically refers to a pediatric abduction or missing vulnerable patient within a healthcare facility. In such situations, staff from all departments, including sonographers, might be asked to be extra observant and report any suspicious activity or unaccompanied individuals who might match the description given the alert. Sonographers should be familiar with the protocol, which might require them to lock down their area, check identification of persons present, and ensure that the safety of the environment is maintained for all patients and staff.
A sonographer's primary role remains to provide diagnostic patient care services using ultrasound but, during emergencies like code purple, they play a supportive role to the security of the facility. It is essential for sonographers to stay calm, follow the instructions as per the emergency protocol, and continue to provide care to their patients unless directed otherwise.