In what cases should we populate verbatim_end_date?
Should I always populate this field except for the cases when I guess the end date (for example, use 30 as default)?
And why do we need 3 fields: days_supply, drug_exposure_end_date and verbatim_end_date?
For example, there is a prescription: take the drug for 10 days started from 2020-01-01. How should I populate drug_exposure?
drug_exposure_start_date = 2020-01-01
days_supply = 10
drug_exposure_end_date = 2020-01-10
verbatim_end_date = 2020-01-10 or NULL?
Another example: we know that it is prescription with start date = 2020-01-01
drug_exposure_start_date = 2020-01-01
days_supply = 30 or NULL?
drug_exposure_end_date = 2020-01-30
verbatim_end_date = NULL
and for Tatiana’s example: should we recalculate days_supply and quantity? According to the wiki, days_supply ‘reflects the intention of the provider for the length of exposure.’
And a quantity of drug ‘as recorded in the original prescription or dispensing record’.
So, for example, a provider gave a prescription ‘take a drug (1 tablet once a day) for 10 days started 2020-01-01’. For some reason, the patient stopped taking the drug on 5th day:
start date = 2020-01-01
daily dosage = 1 tablet
quantity = 10 tablets
days_supply = 10
discontinue date = 2020-01-05
Should we recalculate days_supply and quantity? If we recalculate them, then they won’t reflect the intention of a provider for the length of exposure and quantity of drug as recorded in the original prescription.