Failure to pass the plantar blood test may be due to the condition for which the child is being screened, including congenital hypothyroidism and phenylketonuria, or it may be due to an improper method of collecting the specimen.
Plantar blood tests are usually performed 72 hours after birth and after six or more normal breastfeedings, and are designed to screen for certain congenital disorders, such as phenylketonuria and hypothyroidism, as well as congenital adrenocortical hyperplasia and glucose 6-phosphate dehydrogenase deficiency in some provinces and cities.
Plantar blood test can help to detect the disease at an early stage, and through early scientific treatment, the affected children can usually develop healthily as normal children, however, if the disease is detected late and treatment is not timely, the affected children may have serious growth and developmental disorders and intellectual deficiencies.
Failure of the plantar blood test may be due to the fact that the newborn baby has the disease for which he/she is being screened on the one hand, and on the other hand, it may be due to the fact that the amount of blood collected is too small or that the blood paper filters are not properly coated.
Therefore, parents should take their babies for review and confirmation of the failed screening test, and if the baby is finally diagnosed, early intervention and treatment should be carried out under the guidance of the physician in order to achieve a better therapeutic outcome.