This article explains the process of adding Labs to the Patient Care panel.
From the Patient Care Panel, click Labs.
From here, you can input the pertinent information- including dropdowns to select Study/Results Prior to this Unit's EMS Care, and the Imaging Study Type (CAT Scan, X-Ray, etc.).
Now, you can Add Another Lab Image Group, Add Another Lab, or click Done.
This completes the Labs section of Patient Care. Nice work!