Question: What abnormalities are consistent with B12 deficiency? Mark all that apply. Group of answer choices serum vitamin B12 RBC, Hgb, Hct bilirubin, indirect platelet count and WBC fasting glucose mean corpuscular hemoglobin concentration (MCHC) mean corpuscular volume (MCV) and mean corpuscular hemoglobin (MCH) IF antibodies serum potassium