presence not the strength or amount in the blood
It means that they test only for the presence of the drug, and not the volume etc...
presence and the amount of a specific drug.
Yes. Also, qualitative analysis is the type of drug test that deals with how much of a substance is in a compound. Hope that helps :)
quantitative
presence, amount or amount, presence
The screen threshold is the amount, usually milligrams per deciliter (mg/dL) of sample, that must be present in a specific lab specimen for the test to return a positive. Usually the screen threshold for a drug test is high, meaning drugs or drug metabolites must be present in great amount for the test to return positive. The result is that many drug tests come back negative although the sample does in fact contain drugs or drug metabolites. Any positive specimen is then analyzed by lab machine which detects almost any trace amount of drugs or drug metabolites.
Yvonne Connolly Martin has written: 'Quantitative drug design' -- subject(s): Biopharmaceutics, Theoretical Models, Drugs, Drug Design, QSAR (Biochemistry), Design, Structure-activity relationships, Quantitative Structure-Activity Relationship 'Quantitative drug design' -- subject(s): Drugs, Structure-activity relationships, Biopharmaceutics, Theoretical Models, Drug Design, QSAR (Biochemistry), Design, Quantitative Structure-Activity Relationship, Mathematical models
presence
Measures the amount of methadone in your system an hour after the last dose and before the next dose. To see if the drug is at a therapeutic level
Phenotypic testing directly measures the sensitivity of a patient's HIV to particular drugs and drug combinations. To do this, it measures the concentration of a drug required to inhibit viral replication in the test tube.
The lab test that measures the amount of free unbound drug molecules in the blood is called "free drug concentration" or "free drug level." This test is particularly important for the elderly as changes in kidney or liver function can alter the metabolism and clearance of medications, leading to potential drug toxicity or inadequate treatment. Monitoring the free drug concentration helps healthcare professionals optimize drug dosing and minimize the risk of adverse effects in older adults.
Honestly: do you think it would really matter? One of the things a drug test worker does is takes a quick sniff of the specimen. So say you're a drug test operator. You unscrew the lid of a specimen bottle and you're hit with a huge smell of vinegar. Are you going to go any further? Well, neither would they.
All drug tests, home-done or at the clinic, just detect traces of the drug/drugs in your system. It is impossible to give quantitative results...and don't worry about the test detecting for example hydrocodone...It would just come up as opiate...which could be any number of street/prescription drugs. Hope I helped! Good luck on your test!
yes they pick a little hair to test
dosage
Bioavailability of a drug is the amount of the drug that is available for use by the body after it has been metabolised by the liver.
You don't have to wait. Take a copy of your prescription with you to the drug test, and have them enclose the prescription with the specimen when they send it out for analysis.