What Is The Cut Off Level For EtG?

What are normal EtG levels?

Levels higher than 1,000ng/mL of EtG in the urine is considered a “high” positive, and usually is indicative of heavy drinking within the previous day or same day, or even light drinking the day of the test.

“Low” positive tests have levels of EtG between 500 to 1,000ng/mL..

Does EtG really test 80 hours?

The EtG test is quite sensitive and can detect even low levels of alcohol. In fact, the test can detect alcohol in the urine up to five days after consumption. In studies of participants without alcohol-use disorders, EtG has been detected in urine samples for up to 80 hours (3.3 days) after heavy alcohol exposure.

How long does alcohol stay in your urine for probation?

The average urine test can detect alcohol between 12 and 48 hours after drinking. More advanced testing can measure alcohol in the urine 80 hours after you drink. Breath tests for alcohol can detect alcohol within a shorter time frame. This is about 24 hours on average.

Does EtG degrade over time?

Degradation of EtG may occur over time if a urine sample is not stored properly. EtG is subject to bacterial degradation if the urine specimen is stored at room temperature for too long after collection. When degradation occurs, the amount of EtG in the urine decreases over time.

What causes false positive EtG test?

False positive and false negative results have been reported with both EtG and EtS. False positive test results may be due to incidental exposure to alcohol-containing products such as mouthwash and hand sanitizers, especially if a lower cutoff concentration is used.

What is considered heavy drinking?

For men, heavy drinking is typically defined as consuming 15 drinks or more per week. For women, heavy drinking is typically defined as consuming 8 drinks or more per week.

What is considered heavy drinking for EtG test?

Therefore, when attempting to detect heavy drinking, a cutoff of 100 ng/mL is recommended. Importantly, even at this relatively low cutoff, EtG-I detected relatively low levels of light drinking after two days.

Can EtG detect after 120 hours?

Sensitivity and Specificity. Overall, the EtG immunoassay was able to correctly identify self-reported drinking from 24 (AUC=0.90, 95% CI: 0.88, 0.92) to 120 hours (AUC=0.88, 95% CI: 0.87, 0.90).

Can alcohol be detected in urine after 60 hours?

EtG can be detected in the urine for as long as 5 or more days after the consumption of alcohol, but more typically becomes undetectable within 48 to 72 hours (Wurst et al., 2002).

Is EtG detectable after 48 hours?

Conclusions: Any drinking the night before should be detectable the following morning with EtG cutoffs of 100 or 200 ng/ml. Twenty-four hours after drinking, sensitivity is poor for light drinking, but good for heavier consumption. At 48 hours, sensitivity is low following 6 drinks or less.

Does water lower EtG?

While it is possible to lower the EtG concentration by drinking large volumes of water, expressing EtG as a ratio to creatinine overcomes this problem of urinary dilution.

How long does EtG actually last?

After a few drinks, EtG can be present in the urine up to 48 hours, and sometimes up to 72 or hours or longer if the drinking is heavier. Can the EtG Amount Indicate How Much Alcohol Someone Has Actually Consumed (i.e. Number of Drinks)?

Can hand sanitizer show up on EtG test?

Conclusion: Ethanol from hand sanitizers is predominantly incorporated by the respiratory tract but not via the skin. It can cause a distinct ethyl glucuronide excretion and thus analytically true-positive but forensically false-positive EtG findings in the urine of ethanol abstaining persons.