Three parts to this question.
1) My assumption is that for every MedicationDispense resource that a pharmacy creates, there would be a corresponding MedicationStatement. There may be multiple MedicationDispense resources associated with a single MedicationStatement (e.g. refills). Is this consistent with the view of others in the community?
2) The spec indicates that MedicationStatement is a less formal MedicationAdministration. In the case where MedicationAdministration is created, should there always be a corresponding MedicationStatement? Again, my assumption is yes, where MedicationStatement simply is an indicator that a Patient is supposed to be using a particular medication, while MedicationAdministration is a very specific event that the medication was actually administered to the patient.
3) For self (patient) reported administrations, is MedicationAdministration recommended? If not, this seems to cloud the use of MedicationStatement, where it is used for both the general ("I'm supposed to be taking this medication") and the specific ("I took my dose this morning at 7 am"). Thoughts?