The new test allows using the anti-D prophylaxis when it is needed and spare some pregnant women from unnecessary prenatal prophylaxis. It is unclear whether these pregnant women have an advantage, however, because reliable data on possible side effects of the prophylaxis are missing. The risk that false test results might lead to additional sensitizations is considered low, despite the lack of sufficient data.
Rhesus: Positive or negative? | Parent24
On the one hand, the test can be rated as very reliable. On the other, the risk is low that sensitization occurs already during pregnancy. In its report, the Institute did not address the question which effects it might have at the level of the German health care system if a large number of unnecessary anti-D prophylaxis are avoided.
General aspects of importance are not only the financing of this prophylaxis, but also its acquisition and ethical aspects, however, because male donors are sensitized with a blood product to produce the vaccine. The number of donors worldwide is limited, and Germany has to import the preparations.
Prenatal testing of the fetal rhesus factor: Test is reliable, but benefit is unclear
If the prenatal test was to replace the postnatal test, this would increase neither the rate of prophylaxis that is falsely withheld nor the rate of haemolytic anemia to a measurable extent. This is because both tests are equivalent. It is recommended, however, to evaluate the procedure first and particularly to test how high the sensitivity of the new prenatal test actually is under the health care conditions in Germany.
Only after this evaluation, a safe decision could be made whether postnatal testing is in fact dispensable. Responsible authorities in Denmark and the Netherlands, where only prenatal testing is used nowadays, also had arranged for prior evaluation. Note: Content may be edited for style and length.
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Science News. Risk particularly in subsequent pregnancies The rhesus factor is an inherited characteristic of the red blood cells erythrocytes.
What causes rhesus disease?
ScienceDaily, 15 May Institute for Quality and Efficiency in Health Care. Prenatal testing of the fetal rhesus factor: Test is reliable, but benefit is unclear: Studies on benefit are lacking; tests before and after birth are equivalent. Retrieved November 9, from www.
Now, researchers have developed a Until now, Westhoff C. ABO, H, and Lewis blood groups and structurally related antigens and methods. Technical Manual. Flegel WA. Molecular genetics of RH and its clinical application. Transfus Clin Biol. Price TH, ed. Transfusion-service-related activities.
Standards for Blood Bank and Transfusion Services. Section 5, Subsections 5. Br J Haematol. Domen RE. Policies and procedures related to weak D phenotype testing and Rh immune globulin administration. Arch Pathol Lab Med. Policies and procedures related to testing for weak D phenotypes and administration of Rh immune globulin: results and recommendations related to supplemental questions in the Comprehensive Transfusion Medicine survey of the College of American Pathologists.
Strategies to identify candidates for D variant genotyping. Blood Transfus. Genotyping to prevent Rh disease: has the time come?. Curr Opin Hematol. The Rh blood group system: a review. Chapter Immunohematology. Philadelphia, PA: Saunders; Rh blood group system.
ClinLab Navigator. Accessed: July 21, Noninvasive prenatal RHD genotyping by real-time polymerase chain reaction using plasma from D-negative pregnant women. All rights reserved. Rhesus macaques are familiar brown primates with red faces and rears. They have close-cropped hair on their heads, which accentuates their very expressive faces.
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Rhesus macaques are Asian, Old World monkeys. A few troops of introduced rhesus macaques now live wild in Florida. These intelligent animals can adapt to many habitats, and some can even become accustomed to living in human communities.
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This is most common in India, where Hindus regard the animals as sacred and usually leave them undisturbed.
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