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Dual Marker Test

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The Dual Marker Test is a type of test that pregnant women are mainly subjected to determine any chromosomal malformation in the fetus, which may show advanced signs of conditions such as Down’s syndrome or Edward’s Syndrome in the child.

What is Dual Marker Test?

The Dual Marker test is especially given to pregnant women above 35 years of age and those who have a family history of birth defects and a history insulin-dependent type 1 diabetes. The Dual Marker Test is a simple blood test.

The Dual Marker Test is performed with an ultrasound test and is done with a blood sample. The Dual Marker test looks for two markers, namely Free Beta hCG and PAPP. The Dual Marker Test normal value of hCG in pregnant women is 25700-288000 mIU/mI for of all age groups.

Why is the Dual Marker Test Suggested?

This test helps determine

  • Whether the unborn baby is at risk of any mental disorder.
  • Trisomy 18, which results in mental retardation.
  • Trisomy 21, which causes heart disorders.

How is the Dual Marker Test Performed?

The Dual Marker Test is performed in the following way:

  • Blood is collected from the veins.
  • The collected blood sample is sent to the lab.
  • The sample is analyzed by hormones and proteins.

What are the parameters measured in the Dual Marker Test?

Dual Marker Test measures the number of specific markers included in the patient’s hormone.

Preparation before Performing a Dual Marker Test

A Dual Marker Test is a simple blood test. It does not require any preparation, although the doctor may recommend specific medication.

Post care after Dual Marker Test

A Dual Marker test does not require specialized post care. The patient can resume their regular life.

Sample type of Dual Marker Test

An intravenous blood sample is required in a dual marker test.

Side effects of Dual Marker Test

The Dual Marker Test poses a few risks for the patient as the test is very sensitive.

  • The blood collecting process is painful and uncomfortable.
  • The risk is greater than a routine blood test.

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