Final answer:
You would document the information of placing a 67-year-old female patient on low-concentration oxygen with a nasal cannula under the Patient Data section of the prehospital care report (PCR).
Step-by-step explanation:
Under the Patient Data section of the prehospital care report (PCR), you would document the information of placing a 67-year-old female patient on low-concentration oxygen with a nasal cannula. The Patient Data section typically includes demographic information, medical history, vital signs, and any interventions or treatments provided to the patient.