What does a positive Integrated prenatal Screening result mean?

A positive result in an integrated prenatal screen (IPS) means that the screening test has indicated an increased likelihood of the developing fetus having certain abnormalities, such as Down syndrome (trisomy 21) or other chromosomal disorders. An IPS is a combination of maternal blood tests, ultrasound measurements, and sometimes, maternal risk factors. However, it is important to note that a positive IPS result does not necessarily mean that the fetus is definitely affected. Further diagnostic tests, such as chorionic villus sampling (CVS) or amniocentesis, are usually recommended to confirm or rule out the suspected abnormalities.

Here's what a positive IPS result generally indicates:

1. Increased Risk: A positive IPS indicates an elevated risk of certain fetal chromosomal abnormalities or genetic conditions compared to the general population.

2. Probability: The positive result provides an estimate of the probability or chance of the fetus having a specific abnormality. This probability is usually expressed as a numerical value or a risk ratio.

3. Further Testing: A positive IPS result warrants further diagnostic testing to determine the presence or absence of the suspected abnormalities with greater accuracy.

4. Not a Diagnosis: It is important to remember that a positive IPS result is not a definitive diagnosis. It is an indication of a potential risk, and further testing is needed to confirm or rule out the suspected condition.

It is crucial for individuals who receive a positive IPS result to consult with their healthcare provider to understand the implications, discuss the recommended diagnostic tests, and make informed decisions about their pregnancy.