DIY blood typing kit
Filed under: Prevention
Have you had a chance to check out our latest new blog? DIY Life highlights the best of do-it-yourself on the web, and there's some really interesting stuff over there. For example, this DIY blood typing kit is kind of neat. For less than $10, you can send away for an at-home testing kit that contains everything you need to find out your blood type. When you're finished, you can laminate the card to carry in your wallet.Knowing your blood type is typically not a top priority, but in an emergency it can be critical. Matching blood types is crucial during transfusions and certain blood types can only receive a specific type of blood. Though it's simple enough for your doctor to test your blood type, if you haven't had it done or if you don't have any blood work scheduled, this little test might be helpful.
[RESEARCH] Effect of high throughput RHD typing of fetal DNA in maternal plasma on use of anti-RhD immunoglobulin in RhD negative pregnant women: prospective feasibility study
Objectives To assess the feasibility of applying a high throughput method, with an automated robotic technique, for predicting fetal RhD phenotype from fetal DNA in the plasma of RhD negative pregnant women to avoid unnecessary treatment with anti-RhD immunoglobulin.
Design Prospective comparison of fetal RHD genotype determined from fetal DNA in maternal plasma with the serologically determined fetal RhD phenotype from cord blood.
Setting Antenatal clinics and antenatal testing laboratories in the Midlands and north of England and an international blood group reference laboratory.
Participants Pregnant women of known gestation identified as RhD negative by an antenatal testing laboratory. Samples from 1997 women were taken at or before the 28 week antenatal visit.
Main outcome measures Detection rate of fetal RhD from maternal plasma, error rate, false positive rate, and the odds of being affected given a positive result.
Results Serologically determined RhD phenotypes were obtained from 1869 cord blood samples. In 95.7% (n=1788) the correct fetal RhD phenotype was predicted by the genotyping tests. In 3.4% (n=64) results were either unobtainable or inconclusive. A false positive result was obtained in 0.8% (14 samples), probably because of unexpressed or weakly expressed fetal RHD genes. In only three samples (0.2%) were false negative results obtained. If these results had been applied as a guide to treatment, only 2% of the women would have received anti-RhD unnecessarily, compared with 38% without the genotyping.
Conclusions High throughput RHD genotyping of fetuses in all RhD negative women is feasible and would substantially reduce unnecessary administration of anti-RhD immunoglobulin to RhD negative pregnant women with an RhD negative fetus.
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High blood pressure (hypertension) is often called the “Silent Killer” because of a distinct lack of symptoms. The first time someone finds out they may have hypertension is after a routine test at the doctor’s office.
Your doctor can quickly and easily check your blood pressure, but do be warned, there is a very [...]
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