ARUP Laboratories’ Umbilical Cord and Meconium Testing Positivity Rates

ARUP Laboratories’ Umbilical Cord and Meconium Testing Positivity Rates

Positivity rates reflect samples tested 8/1/16 - 10/31/16

Drug class and specific drug analytes

Cord

Meconium (MEC9)

Opiates/Oxycodone

 

13.6%

 

Morphine

5.4%

*

Codeine

2.1%

*

6-AM (heroin metabolite)

1.1%

*

Oxycodone

2.3%

*

Noroxycodone

2.4%

 

Oxymorphone

0.4%

*

Noroxymorphone

2.3%

 

Hydrocodone

2.5%

*

Norhydrocodone

2.7%

 

Dihydrocodeine

0.3%

 

Hydromorphone

1.0%

*

Buprenorphine

 

5.2%

 

Buprenorphine

0.2%

*

Norbuprenorphine

7.4%

*

Buprenorphine glucuronide

1.6%

 

Methadone

 

4.4%

 

Methadone

4.3%

*

Methadone metabolite (EDDP)

4.3%

 

Amphetamine/Methamphetamine

 

8.2%

 

Amphetamine

5.0%

*

Methamphetamine

4.0%

*

MDMA (Ecstasy)

0.0%

*

Cocaine

 

4.4%

 

Cocaine

1.6%

*

Benzoylecgonine (cocaine metabolite)

3.3%

*

m-hydroxy-benzoylecgonine

2.0%

*

Cocaethylene

0.1%

*

Benzodiazepines

 

3.2%

 

Alprazolam or metabolite

1.5%

*

Clonazepam or metabolite

1.0%

*

Diazepam

0.8%

*

Lorazepam

1.0%

*

Midazolam or metabolite

0.8%

*

Nordiazepam

1.4%

*

Oxazepam

0.0%

*

Temazepam

2.0%

*

Barbiturates

 

1.1%

 

Butalbital

1.9%

*

Phenobarbital

1.0%

*

Phencyclidine (PCP)

0.0%

0.1%

Marijuana (THC) metabolite

9.4%

33.0%

* indicates that the specific analyte is included in meconium confirmation testing

 

Positivity rates of other drugs included in cord, but not meconium

Opioids

Fentanyl

0.9%

 

 

Meperidine

1.3%

 

Naloxone

0.1%

 

Propoxyphene

0.0%

 

Tramadol or metabolite

1.1%

 

Tapentadol

0.0%

 

Phentermine

0.1%

 

Zolpidem

2.5%