NucMed > RIAScott WilliamsApr 2, 2002 RIA The Schilling Test Vitamin B12 absorption physiology Indications for the Schilling Test Pre-Test Preparation Causes of false low serum B12 level Causes of false normal B12 Stage I Schilling Test Technique Calculations Causes for a false positive test Causes for a false negative test Stage II Schilling Test Stage III Schilling Test Stage IV Schilling Test Dual-isotope Schilling test Blood Volume Determination Physiology Plasma Volume Technique Calculations RBC Volume Calculations Sources of possible error Reporting Results Diagnosis Relative polycythemia Polycythemia vera Secondary polycythemia Red Blood Cell Survival Technique Calculations Splenic Sequestration Study Latest in HomePET/CT reveals new infections in ICU patientsFebruary 21, 2025Ultrasound falls short for detecting endometrial cancer in Black womenFebruary 21, 2025T2-weighted MRI shows promise for body composition analysisFebruary 21, 2025LUS reliable for care strategies in infants with RDSFebruary 20, 2025Related StoriesHomeNucMed > Musculoskeletal > LymphHomeNucMed > Cardiovascular > Sestamibi imagingHomeNucMed > PET > PET myocardial imagingHomeNucMed > Cardiovascular > Perfusion Exam Findings