Final answer:
A child with symptoms of loss of reflexes, loss of sensation, and hemolytic anemia is likely experiencing vitamin B12 deficiency, which can cause neurological symptoms and megaloblastic anemia.
Step-by-step explanation:
If a child exhibits symptoms such as loss of reflexes, loss of sensation, and hemolytic anemia, the vitamin deficiency most likely responsible for these symptoms is vitamin B12 deficiency. The loss of reflexes and sensation can be associated with the neurological impacts of vitamin B12 deficiency, including peripheral neuropathy. Hemolytic anemia, particularly when mentioned alongside these neurological symptoms, can suggest a megaloblastic anemia, which is a hallmark of vitamin B12 or folate deficiency.
Iron deficiency anemia, while the most common type, typically does not cause loss of reflexes or loss of sensation. It does lead to low hemoglobin levels and can result in fatigue, paleness, and decreased physical activity, which may be confused with symptoms of vitamin B12 deficiency anemia. However, the neurological symptoms are more indicative of megaloblastic anemia resulting from b12 or folate deficiency rather than iron deficiency.