Indicate whether you think the example is an Independent Clause (IC), a Dependent Clause (DC), or a Phrase by clicking in the appropriate button, but remember to check for a subject and verb before you answer.You can see an analysis of each example by clicking on the Please Explain button.ndicate whether you think the example is an Independent Clause (IC), a Dependent Clause (DC), or a Phrase by clicking in the appropriate button, but remember to check for a subject and verb before you answer.
Blood tests, unlike urinalysis, detect the presence illicit drugs, not inactive drug metabolites. In general, THC only remains detectable in the blood of cannabis consumers for a few hours (though low, residual levels may be detected in chronic smokers for up to 12-24+ hours if more sensitive technology is used).
This is the reason that drug tests, namely urine tests, look for 9-carboxy-THC. Many of the following numbers are estimates. Typical Periods of Time that Marijuana Use May be Detectedâ¡. â¡ Some private companies may use hair tests to detect possible marijuana use.The detection period for 9-carboxy-THC in urine may be as long as three months in extremely heavy users. Research on saliva tests indicated that they may be able to detect THC up to eight hours after ingestion but they aren't widely used.