RD Exam Prep: Biochemical/Laboratory Data Questions and Answers 100% Correct

RD Exam Prep: Biochemical/Laboratory Data Questions and Answers 100% Correct Hemoglobin (Hgb) - Answer- Function: carries oxygen from lungs to tissues Normal Value: Males 14-17g/dL and Females 12-15g/dL Increased d/t: hemolysis, sickle cell anemia, dehydration, heart failure Decreased d/t: iron deficiency anemia, bleeding, renal or liver disease Mean Corpuscular Volume (MCV) - Answer- Function: mean size of a red blood cell Normal Value: 80-94cu/m Increased d/t: B12 deficiency, early pernicious anemia, folate deficiency, chronic pancreatic disease Decreased d/t: advanced iron deficiency, iron malabsorption, excessive iron, blood loss Mean Corpuscular Hemoglobin (MCH) - Answer- Function: mean weight of a cell Normal Value: 27-31pg/cell Increased d/t: macrocytic anemia Decreased d/t: iron deficiency anemia, hypochromic anemia, hemoglobin deficiency Mean Corpuscular Hemoglobin Concentration (MCHC) - Answer- Function: mean RBC concentration per cell Normal Value: 32-36g/dL Increased d/t: hemolysis, spherocytosis Decreased d/t: blood loss, iron deficiency Red Blood Cells (RBCs) - Answer- Function: # of RBC in circulation Normal Value: 4.0-6.1 million cells/mcL Increased d/t: severe diarrhea, dehydration, polycythemia Decreased d/t: anemia, chronic illness, dietary deficiency, hemolysis, hemorrhage, Lupus, lymphoma, overhydration Total Iron Binding Capacity (TIBC) - Answer- Function: shows the ability of transferrin to transport iron Normal Value: 250-460mcg/dL Increased d/t: complete depletion of iron stores Decreased d/t: increased iron stores Transferrin - Answer- Function: transport protein with iron binding capacities; sends iron to the liver, spleen, and blood marrow