Final answer:
The first action an MA should take when seeing a hemoglobin level of 7 g/dL is to notify the provider, due to the serious nature of such a low reading which can signal anemia and insufficient oxygenation of tissues.
Step-by-step explanation:
When a laboratory report indicates a patient has a hemoglobin level of 7 g/dL, the first action for a Medical Assistant (MA) to take would be option a) Notify the provider. This is because a hemoglobin level of 7 g/dL is considered low, as normal hemoglobin levels usually range from 12 to 17.5 g/dL in adults. In cases of iron deficiency anemia or other health concerns, such low levels can lead to insufficient oxygen transport to the body's tissues. Given the potential severity of low hemoglobin levels, urgent medical review is necessary to assess the patient's condition and plan appropriate management.