Clinical Laboratory Hematology 3rd Edition by Shirlyn McKenzie, Lynne Williams

Exercise 13

John is a 4-year-old boy who frequently complains of weakness, fatigue, and dyspnea. The family moved to the United States from Greece before the child's birth. Both parents experienced fatigue from time to time but never consulted a physician. Consider the types of anemia most often found at this age and the laboratory tests that could help establish a diagnosis.
What is the significance, if any, of knowing the parents' background and medical history?
The parents took John, the 4-year-old Greek patient, to a pediatrician for a checkup. A CBC ordered had the following results:
List two additional lab tests that would help to confirm the diagnosis and predict the results of each.