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General Disclaimer: Nothing presented constitutes legal advice and the McKenzie Friend UK Network is not a legal entity or in any way claims to be a 'legal resource'. The resource guide is supported by McKenzie Friends and Litigants in person for Litigants in Person in Family Court. McKenzie Friends provide layperson support as an informed friend under the Family Court Practice Guidance of 2010. All information is published as guidance. For any corrections, please contact the McKenzie Friend UK Network
 
Alcohol Abuse
 
 
Alcohol Marker Information
 
WHO guidelines regarding alcohol consumption
 
Consumption Level Men Woman
Excessive 60g ethanol per day (3/4 bottle of wine or 7.5 units 40g ethanol per day (1/2 bottle of wine or 5 units)
Occasional/Social <60g ethanol per day (3/4 bottle of wine or 7.5 units < 40g ethanol per day (1/2 bottle of wine or 5 units)
Abstinence No alcohol consumption No alcohol consumption
 
For Illustration, excessive alcohol conumption approximately:
 
  • 562.5 ml of a bottle of wine for men, or 373ml of a bottle of wine for women per day
  • 7-8 shots of spirit for men, or 5 shots of a spirit for women per day
  • 4 cans of beer for men, or 3 cans of beer for women per day
 
The Society of Hair Testing (Forensic Science International, 2015, 249, A1-A2J) provides guidelines for the interpretation of
hair testing for alcohol consumption.
 
Ethyl glucuronide (EtG) & Ethyl palmitate (EtPa) are minor metabolites (0.5%) of alcohol, i.e., ethanoland is, therefore, a marker for ethanol exposure.
 
Cut/Off Ranges and indications
 
  Alcohol Abstinence Repeated Consumption Chronic Excessive Consumption
EtG: 0-3cm / 0-6cm Less than 5 pg/mg Between 5-29 pg/mg Greater than 30 pg/mg
EtPa: 0-3cm Less than 0.12 ng/mg Above 0.12 ng/mg Greater than 0.35 ng/mg
EtPa: 0-6cm Less than 0.15 ng/mg Above 0.15 ng/mg Greater than 0.45 ng/mg
 
The concentration of Etg abnd EtPa in the hair can be influenced by chemical and/or thermal hair treatments (e.g. bleaching, dyeing, or perming, etc) and generally decrease the concentrations. EtG concentrations appear not to be influenced by hairspray, gel, wax,oil, grease or ethanol-containing hair care products. The use of ethanol-containing hair care products (e.g. hairspray or hair lotions) may increase the concentration of EtPa.
 
 
Resources:
 
 
Updated 21/05/24

 

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