1. Laboratory Data in Nutrition Assessment Chapter 18

2. © 2004, 2002 Elsevier Inc. All rights reserved. Nutrition Laboratory Data n Information about —Nutrition status obtained from controlled physical, chemical (biochemical), molecular diagnostic, or microscopic examination of specimens of body tissues, fluids, and wastes n Information about —Nutrition status obtained from controlled physical, chemical (biochemical), molecular diagnostic, or microscopic examination of specimens of body tissues, fluids, and wastes

3. © 2004, 2002 Elsevier Inc. All rights reserved. Specimen Types n Serum n Plasma n Erythrocytes n Leukocytes n Other tissues n Urine n Feces n Serum n Plasma n Erythrocytes n Leukocytes n Other tissues n Urine n Feces

4. © 2004, 2002 Elsevier Inc. All rights reserved. Types of Assays n Static assays n Functional assays n Static assays n Functional assays

5. © 2004, 2002 Elsevier Inc. All rights reserved. Protein Evaluation n Negative acute-phase respondents n Positive acute-phase respondents n Nitrogen balance n Negative acute-phase respondents n Positive acute-phase respondents n Nitrogen balance

6. © 2004, 2002 Elsevier Inc. All rights reserved. Properties of Proteins Commonly Used in Protein-Energy Assessment

7. © 2004, 2002 Elsevier Inc. All rights reserved. Anemia n Condition characterized by a reduction in the number of erythrocytes per unit of blood volume, or a decrease in hemoglobin content of blood to below the level of usual physiologic need n Hemoglobin concentration below the 95th percentile n Microcytic vs. macrocytic n Condition characterized by a reduction in the number of erythrocytes per unit of blood volume, or a decrease in hemoglobin content of blood to below the level of usual physiologic need n Hemoglobin concentration below the 95th percentile n Microcytic vs. macrocytic

8. © 2004, 2002 Elsevier Inc. All rights reserved. Laboratory Tests for Iron Deficiency Anemia n Serum iron n Total iron-binding capacity n Transferrin saturation n Zinc protoporphyrin: heme ratio and free-erythrocyte protoporphyrin n Ferritin n Serum transferrin receptor (sTfR) test n Serum iron n Total iron-binding capacity n Transferrin saturation n Zinc protoporphyrin: heme ratio and free-erythrocyte protoporphyrin n Ferritin n Serum transferrin receptor (sTfR) test

9. © 2004, 2002 Elsevier Inc. All rights reserved. Malabsorption Syndrome n Refers to a condition in which several nutrients are not normally absorbed

10. © 2004, 2002 Elsevier Inc. All rights reserved. Screening for Malabsorption

11. © 2004, 2002 Elsevier Inc. All rights reserved. Constituents of Common Serum Chemistry Panels

12. © 2004, 2002 Elsevier Inc. All rights reserved. Constituents of the Hemogram: Complete Blood Count and Differential

13. © 2004, 2002 Elsevier Inc. All rights reserved. Constituents of the Hemogram: Complete Blood Count and Differential — cont’d

14. © 2004, 2002 Elsevier Inc. All rights reserved. Chemical Tests in a Urinalysis

15. © 2004, 2002 Elsevier Inc. All rights reserved. Chemical Tests in a Urinalysis –cont’d