The nurse has noticed there seems to be an increase in the numbers of

The nurse has noticed there seems to be an increase in the numbers of patients being admitted to the home care service with a diagnosis of lung cancer. To verify this assumption, the best data source to use would be

A) interview data.
B) participant observations.
C) constructed surveys.
D) existing data such as charts and/or other documents.

ESSAYBID ANSWER

D