5-7Use This Case to Answer the Following Questions

Multiple Choice

5-7.Use this case to answer the following questions.A 55-year-old male consulted his physician because of weakness,lightheadedness,vertigo,and angina.The patient also complained of sores on his tongue.The physical examination revealed jaundice.The pulse rate was increased,and the spleen and liver were slightly enlarged.The tongue appeared smooth and bright red in color.Family history revealed no clues.Neurological exam revealed quickening of reflex responses.Patient history indicated a total gastrectomy five years earlier for stomach cancer and intermittent heart problems that had not required surgery.The physician ordered the following tests:
-What is (are) the most appropriate reflex test(s) ?

A) Iron studies
B) Bilirubin
C) Vitamin B₁₂ and folate levels
D) Hemoglobin electrophoresis