On the first following delivery, the physician ordered a hemoglobin level for the patient; the result was 9.9 g/dL. The physician did not list any other orders in the patient's chart since that timE. Which response of the nurse is most appropriate>
A. call the physician and ask if he wants a blood transfusion for the patient
B. ask the physician about the hemoglobin level when he comes in for rounds
C. Contact the laboratory and ask them to repeat the test
D. continue to monitor the patient and document the result