Table 4. IN VIVO NON-IMAGING TRACER KINETIC STUDIES

STUDY TYPE ........................................TRACER ........................................SAMPLES ........................................DEFECTS DETECTED

CO2 breath test ........................................C-14 CO2 ........................................breath ..............................................glucose intolerance

Iron turnover ..............................................Fe-59 chloride ................................whole body ....................................abnormal ferrokinetics

Ocular P-32 uptake ...............................P-32 Na3PO4 ...................................eyes ..................................................ocular melanoma

Platelet survival ........................................In-111 platelets ...............................blood ..................................................abnormal platelet loss

Radioactive iodine (RAIU)........................................*I-NaI ............................thyroid ................................................abnormal uptake test

hyperthyroidism

RBC Survival ........................................Cr-51 RBC's ........................................blood ..................................................hemolytic anemias

Schilling Test ........................................Co-57 B12 ..................................................urine ..................................................pernicious anemia

Vitamin B12 malabsorption syndromes

Splenic Sequestration........................Cr-51 RBC's ........................................spleen ............................................................hypersplenism