The Simple and Best Solution for Blood Sample Analysis - DBS Testing
Dried Blood Spot sampling has been around for
more than 5 decades. For many years now this sampling method is being used for
testing congenital metabolic disease in new-born babies. A blood sample is
collected in a filter paper by making a tiny prick on the infant’s heel.
In recent years, DBS testing has progressed
hugely and is being significantly used in various fields of studies including
infectious diseases, forensics, field testing and toxicology to name a
few.
What is of DBS Sampling
This is a method where just a few drops of
blood is collected in a filter paper and dried before the same is sent for
testing to the lab. One spot of blood can be used to analyse and measure more
than 50 analytes. Even after being dried and stored in room temperature this
method delivers accurate results with minimum volume requirement.
Samples can be attained easily with a minute
prick in the finger or heel with minimal training, and you can collect the sample
at home without calling the Phlebotomist. The process is almost painless
and minimally invasive, unlike venipuncture, which sometimes proves very
troublesome for infants and the elderly.
Blood samples can be transported easily to
the lab, by putting the collection card in an envelope and they stay stable for
days as long as kept in an ambient temperature. In the past few years, the
dried blood spot sampling has emerged as an effective way for gene screening as
well as genetic sample bio-banking for a longer duration of time.
DBS Sampling- Things to keep in Mind
DBS sampling can be done on your own from any
place anytime be or office or home. Dried blood spot collection kits is
available online and offline and is delivered right at your doorstep when your
order for it. While collecting the blood
samples, prick your finger dab two drops of blood on the filter paper within
the circular area and dry the same in the fresh air under a secure environment.
It is important to apply the drops of blood
carefully while sampling from non- laboratory or remote location. Uneven sample
coverage, inappropriate handling of filter paper, can affect the accuracy of
results. Another factor that may contribute to imprecise analysis is inadequate
sampling or too much blood collection. Poor dried blood spot sampling
application can lead to uneven sample coverage that can further result in
varying haematocrit levels as well as chromatography effects that can cause
inexact analytic results.
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