13 doctors weighed in:
How far back does a drug test go using the baby's umbilical cord?
13 doctors weighed in

Dr. Jeff Livingston
Obstetrics & Gynecology
5 doctors agree
In brief: About 1 month
Usually newborn urine or meconium is tested not the umbilical cord.
Different drugs stay in the system for different amounts of time and detection will vary. Remember that it is crucial you tell your doctor about any drug use. This is about keeping your baby safe not avoiding getting caught. The doctors can best care for your baby is they know the truth. Be open and honest and keep your baby safe.

In brief: About 1 month
Usually newborn urine or meconium is tested not the umbilical cord.
Different drugs stay in the system for different amounts of time and detection will vary. Remember that it is crucial you tell your doctor about any drug use. This is about keeping your baby safe not avoiding getting caught. The doctors can best care for your baby is they know the truth. Be open and honest and keep your baby safe.
Dr. Jeff Livingston
Dr. Jeff Livingston
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Dr. Amy Deeken
Pathology
3 doctors agree
In brief: It depends...
It depends on the drug taken, the dosage, and the length of time taken (a couple of doses or maintenance medication).
More details are required to answer the question accurately.

In brief: It depends...
It depends on the drug taken, the dosage, and the length of time taken (a couple of doses or maintenance medication).
More details are required to answer the question accurately.
Dr. Amy Deeken
Dr. Amy Deeken
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Dr. Kevin Considine
Family Medicine
2 doctors agree
In brief: Depends
Depends on the drugs you are looking for many metabolize and get out of the system with in 24-48 hrs but some like marijuana/ thc can take up to a month.

In brief: Depends
Depends on the drugs you are looking for many metabolize and get out of the system with in 24-48 hrs but some like marijuana/ thc can take up to a month.
Dr. Kevin Considine
Dr. Kevin Considine
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Dr. Michael Turner
Family Medicine
1 doctor agrees
In brief: Many variables
Detection of drugs depends on the extent of maternal drug use, drug stability, deposition of the drug analytes in umbilical cord tissue, and the analytic method used.
The actual time window for detecting exposure is unknown but is thought to represent at least the last trimester.

In brief: Many variables
Detection of drugs depends on the extent of maternal drug use, drug stability, deposition of the drug analytes in umbilical cord tissue, and the analytic method used.
The actual time window for detecting exposure is unknown but is thought to represent at least the last trimester.
Dr. Michael Turner
Dr. Michael Turner
Thank
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