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Orsense FAQ:

The OrSense NBM-200 is a non-invasive medical device that measures pre-donation hemoglobin levels. The device was cleared by the Food and Drug Administration (FDA) for use in blood centers and/or for noninvasive patient monitoring. The blood center performed their independent study and validation by sampling donor’s hemoglobin using the OrSense device and comparing the result with the clinical test of their venous sample (hemoglobin test using the blood from their test tube samples). Studies found the OrSense highly accurate.

In an effort to elevate our donor satisfaction, the blood center decided to implement a non-invasive measurement to determine donor eligibility. Hemoglobin and hematocrit are red blood cell measurements used to determine donor eligibility. Both methods are commonly used interchangeably in medical offices. Hemoglobin is a protein in red blood cells that carries oxygen to your organs. Hematocrit is the percentage of blood volume composed of red blood cells. You can calculate your hematocrit by multiplying your hemoglobin by 3. For example: 13.0 g/dl (Hemoglobin) x 3= 39% Hematocrit.

A pneumatic finger sensor cuff is placed on the thumb or index finger, and the cuff temporarily occludes blood flow to the measurement site. A multi-wavelength light source and a highly sensitive detector are used to obtain the hemoglobin reading.

OrSense NBM-200 will feel like a mini blood pressure cuff on your thumb or index finger. The test is painless and comfortable.

Besides hemoglobin, the OrSense NBM-200 has the capability to measure pulse. The pulse feature will be implemented at a later date.

If your initial OrSense NBM-200 test doesn't show the needed levels, you will be eligible for a retest. A deferral of 24 hours will be applied if the second test also does not show the required hemoglobin levels.

Continue to follow the “Iron Information” recommendations on our website to help boost your iron prior to your donation. During the hemoglobin measurement, minimize movement and warm your hands to ensure proper blood flow. Keep your arm resting comfortably on the table, and sit straight up with feet flat on the floor. These recommendations are due to the sensitivity of the device which could prolong the test or result in an error.

No. Gulf Coast Regional Blood Center reviewed donor deferral data which shows no difference in donor deferrals when compared to the hematocrit method. The blood center continuously reviews best practices and procedures to ensure accurate donor eligibility while maintaining an adequate supply of blood and blood components for our community.

 

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