4 doctors weighed in:

Are down's syndrome screening tests accurate?

4 doctors weighed in
Dr. Padmavati Garvey
Obstetrics & Gynecology
1 doctor agrees

In brief: Yes

Amniocentesis is 100% accurate.
The blood test screening tests are 85-95% accurate.

In brief: Yes

Amniocentesis is 100% accurate.
The blood test screening tests are 85-95% accurate.
Dr. Padmavati Garvey
Dr. Padmavati Garvey
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Dr. Brian Enggano
Obstetrics & Gynecology

In brief: Yes

Screening tests are measurements of certain hormones/proteins in your blood.
They are not diagnostic of chromosomal problems but they do indicate if you are at higher risk and whether you should be offered further diagnostic testing. Different tests have different detection rates and which one you receive will depend on your doctor's office resources/laboratory. Discuss this with your doctor.

In brief: Yes

Screening tests are measurements of certain hormones/proteins in your blood.
They are not diagnostic of chromosomal problems but they do indicate if you are at higher risk and whether you should be offered further diagnostic testing. Different tests have different detection rates and which one you receive will depend on your doctor's office resources/laboratory. Discuss this with your doctor.
Dr. Brian Enggano
Dr. Brian Enggano
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Dr. William Goldie
Pediatrics - Neurology

In brief: To a degree

The definitive testing involves chromosomes to look at the chromosome 21.
Alphafetal protein levels may be elevated, but just suggest risk. Fetal ultrasounds may also suggest risk. Chromosome testing is definitive.

In brief: To a degree

The definitive testing involves chromosomes to look at the chromosome 21.
Alphafetal protein levels may be elevated, but just suggest risk. Fetal ultrasounds may also suggest risk. Chromosome testing is definitive.
Dr. William Goldie
Dr. William Goldie
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