Sorted By Test Name - Mayo Medical Laboratories

RTIC
9108
FREB
90331
RBP24
81783
Multimedia.
Interpretation: Decreasing titers suggest successful avoidance of gluten.
Reference Values:
Negative
If positive, results are titered.
Reference values apply to all ages.
Clinical References: 1. Murray JA: The widening spectrum of celiac disease. Am J Clin Nutr
1999;69:354-365 2. Lazzari R, Volta U, Bianchi FB, et al: R[1] reticulin antibodies: markers of celiac
disease in children on a normal diet and on gluten challenge. J Pediatr Gastroenterol Nutr 1984;3:516-522
Reticulocytes, Blood
Clinical Information: Reticulocytes are immature erythrocytes (RBCs) that have been released into
the peripheral blood from the bone marrow after extrusion of their nucleus. The reticulocyte contains
residual polyribosomes used in the formation of hemoglobin in the developing erythrocyte. The
reticulocyte count is a measure of the number of RBCs delivered by the bone marrow. It is elevated with
active erythropoiesis such as regeneration, and is decreased in hypoplastic or deficiency conditions such
as vitamin B12 deficiency.
Useful For: Assessing erythropoietic bone marrow activity in anemia and other hematologic conditions
Interpretation: Reticulocyte counts must be carefully correlated with other clinical and laboratory
findings.
Reference Values:
% Reticulocytes: 0.77-2.36%
Absolute reticulocytes: 38.1-112.6 x 10(9)/L
Clinical References: Clinical Hematology: Principles, Procedures, Correlations. Second edition.
Edited by CA Lotspeich-Steininger, EA Stiene-Martin, JA Koepke. Philadelphia, Lippincott-Raven, 1998,
pp 114-117
Retinol Binding Protein
Reference Values:
1.5-6.7 mg/dL
Test Performed By: Quest Diagnostics/Nichols Institute
33608 Ortega Highway
San Juan Capistrano, CA 92690
Retinol-Binding Protein, 24 Hour, Urine
Clinical Information: Retinol-binding protein is a low-molecular-weight protein of 21 kDa that
transports retinol (vitamin A alcohol) from the liver to peripheral tissues.(1) Retinol-binding protein is
most often found bound to transthyretin, but a small, unbound fraction (