What is the IRT test for cystic fibrosis in newborns?
The IRT (Immunoreactive Trypsinogen) test is a screening method used to detect cystic fibrosis (CF) in newborns. It measures the level of a protein called trypsinogen in a baby's blood. Elevated levels of trypsinogen may indicate the presence of CF.
How is the IRT test performed on newborns?
The IRT test is typically performed by collecting a small blood sample from the baby's heel or hand. The blood is then sent to a laboratory for analysis. It is a routine test that is often conducted as part of newborn screening programs in many countries.
Is the IRT test painful for newborns?
The IRT test involves a small prick on the baby's heel or hand to collect a blood sample. While the procedure may cause brief discomfort, it is generally not considered painful, and the discomfort quickly subsides.
Is the IRT test specific to cystic fibrosis?
No, the IRT test is not specific to cystic fibrosis. Elevated IRT levels can be associated with other conditions or factors, so further testing is necessary to confirm or rule out CF. It is a screening tool to identify infants at risk for CF.
Drlogy