Two Studies Reported from Vanderbilt University Utilizing Blood Volume Measurement.

NEW YORK -- Daxor Corporation, (AMEX: DXR), a medical instrumentation and biotechnology company, announced the publication of a study by Drs. Satish Raj and David Robertson, et.al. from Vanderbilt University on postural tachycardia syndrome (POTS), published in the April 5, 2005 issue of Circulation. This condition affects an estimated 500,000 Americans, primarily younger patients. Patients have a severe increase in heart rate when they rise from a lying or sitting position. Symptoms range from severe dizziness to sensations of impending collapse.

This is the first study clearly documenting that such patients have a low plasma, red cell volume. Such patients may have a form of hidden anemia where the standard tests, such as hemoglobin and hematocrit, are relatively normal even though the patient has a severe anemia. There are medications currently available which would effectively treat low plasma and/or low red cell volume.

Another study from the same group from Vanderbilt University was published in the May issue of the Mayo Clinic Journal. This study focused on the issue of a false anemia in some individuals who appear to be anemic because they have an expanded plasma volume when they lie down for more than 30 minutes. In this group of individuals, their expanded plasma volume could give a false impression that these patients have a hidden anemia requiring treatment such as blood transfusion. In this situation these individuals should not be treated for blood loss. The authors noted that patients with abnormal blood volume conditions can be accurately diagnosed when blood volume measurement is obtained.

Daxor Corporation manufactures and markets the BVA-100, a semi-automated Blood Volume Analyzer. The BVA-100 is used in conjunction with a single use diagnostic kit. It is the first FDA approved instrument to provide rapid, direct measurement of a patient's blood volume with a high degree of precision. Among nationally renowned hospitals which have purchased the BVA-100 Blood Volume Analyzer after using it are The Mayo Clinic, The Cleveland Clinic and New York University Medical Center. The BVA-100 measures blood volume to within a 98% accuracy. More information about the BVA-100 and other Daxor products and services can be found at www.daxor.com.