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 HomeFDA cites MRI study in new requirements for COVID-19 manufacturersJune 26, 2025SponsoredJoin Us June 26 at 12 Noon ET for a FREE webinar!June 12, 2025ACS: Half of cancer mortality due to modifiable risk factorsJune 25, 2025SNMMI: For PET drugs, sterility assurance bests sterility testingJune 25, 2025Related StoriesHomeNucMed > Musculoskeletal > LymphHomeNucMed > Cardiovascular > Sestamibi imagingHomeNucMed > PET > PET myocardial imagingSponsor ContentJoin Us June 26 at 12 Noon ET for a FREE webinar!