Faint Line On Thc Drug Test - Urine drug tests: Uses, procedure, detection times, and results.

A faint T line with a visible C line is always a negative drug test result, on any drug test kit on which two lines is a negative result, ie no drugs detected above the cut off levels for the drug test, on the sample being tested. In General, any very faint line on the test region could indicate that the drug in the sample could be near the cut-off level for the test. I had lines lke this for both THC and another substamce before an employer test and 100% passed. The author's goal is to share with teachers how they, using Heathcote's methods, can generate significant learning. 7030 commonwealth ave jacksonville fl 32220 So, drink sufficiently, but don't overdo it, don't work out, and eat fatty foods so your body doesn't have to tap into the fat reserve it has built up!. kroger market near me While it's true that drinking water a few hours before a test will help dilute your sample. The US secretary of state is traveling to the Black Sea resort in. At times, faint line on drug test maybe due to the presence of a little quantity of drug remaining in the urine sample especially in TCH screening test. The urine composition differs slightly for each individual mainly because of the medication intake, fluid consumption and overall health. Lightly hydrate, keyword lightly before your test and you’ll be 100% good to go. One of the most common questions we receive is. Faint line on at home drug test, will I B good a court test? I have a in court drug test for weed in 5 days, I have been taking at home ones nd all fails till recently. The first test at 11 days of no smoking was "too dilute" and I had to do the repeat. If the drug meets the 50 ng/ml THC cutoff level, then it has the potential to test positive in a cross reaction. Uncover the reasons behind faint lines in home drug tests with Dr. GameStop Moderna Pfizer Johnson & Johnson AstraZeneca Walgreens Best Buy Novavax SpaceX Tesla. will saturate all the binding sites of anti-Marijuana antibodies. A faint line may occur if the strip is not left in the urine sample for …. For example, if the screening test indicated the THC was positive, mark an “X” next to the THC test. I got a random drug test the other day at work, I had gotten pretty drunk over the weekend while my friends were doing coke and don't remember the whole night so right afterward I bought an at home drug test to be sure. Keep in mind that some lab tests detect as little as 20 Ng of THC per ml of urine, while most are set to detect 50 Ng per ml. Marijuana Detection Time Chart Urine Drug Test 1 time only 5-8 days 2-4 times per month 11-18 days. Faint Line On Thc Test Watching the English, Second Edition Kate Fox 2014-07-08 The international hit returns with even more wit and insight into the hidden rules that Pharmacology and Drug Administration for Imaging Technologists - E-Book Steven C. Every test I have done from urine has looked like the test on the right with an extremely faint line. roughneck 41763 The Legal Implications of Drug Testing in the Workplace In recent years, the use of cannabis products for both medicinal and recreational purposes has gained significant popularity. Thought I'd share my experience. 3 ng/ml by drinking a lot of water. So I am currently doing some light diluting. Workplace drug test I heard 2 lines is Good but looking for reassurance. In … 441 Show detail Preview View more. Pretty sure that’s enough of a line to be considered negative but drink lots of water. There are people that have never touched weed, but can still produce an extremely faint line because the chemical structure of the metabolites being tested are similar to ones that occur naturally in the body. This means sometime between 100-120 days, I started dropping below the industry standard 50ng/ml. I tested myself again and there was a faint but definite line indicating I was testing negative! Urine Drug Test: Please check the. family cruise shirts svg Step #1: Hand over the drug test cup and instruct them to urinate directly into it until they reach the indicated volume marker on its side. If your test is like this: Then two lines means negative, no matter how faint the second line is. Whether it is for pre-employment screening, random testing at the workplace, or for personal reasons, it is essential to understand the results accurately. Any line is negative, no matter how faint. How you interpret this variation in the drug test result line can cause a lot of confusion, but is actually quite straightforward. A half out later I took a standard dod drug test. Legally speaking, hemp is any part of the cannabis plant with less than 0. Each test will have its own calibration and regent. When I tested myself I used a UScreen test. ; Delta-8 THC is a cannabinoid that shares similarities with delta-9 THC, potentially …. I came up negative, the line was really faint but it was definitely there. Fucking things must test down to 1 nanogram or something I swear to God. Each piece of data plays a part in the comprehensive equation used to predict THC excretion times and drug test outcomes. A positive test has no business even having the faintest line given the way the test works. very faint line, drug test tomorrow. Hi u/Adventurous_Ad3145 , cannabis can stay in your urine anytime from 5 - 95 days. Advertisement Clinical trials are. The most common example of this problem is that the U. As you can see in the negative test results photos below, the THC strip is much lighter in color than the OXY test strip, but the test result is still negative. Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC; 700845: Drug Screen 13 w/Conf, Serum: 72479-9: 700714: AMPHETAMINES, IA. 3 Level Marijuana Drug Test - Detect THC levels at 15 ng/mL, 50 ng/mL, and 100 ng/mL. I've used em many of times and they've always been accurate for when I had clean pee, like I've passed drug tests with a line this faint or even fainter where I had to use the light to see it before going into the real thing. As you can see in the negative test result photos below, the PCP strip is much lighter in color than the MOP, but the result is still negative. Have a pre employment test, quest lab send out that I can schedule at my own convenience but I've been putting it off. However, sometimes users can encounter situations where they receive a faint line on the test, indicating a negative result. The UK government brought new legislation into effect on 2nd March 2015 which allows the police to perform roadside drug testing using a roadside oral saliva drug testing kits or 'drugalyser'. I tested myself at home to be sure. Drinking boatloads of water in the days leading your test will not remove excess THC metabolites from your body. Keep in mind that the panel number only states. Also known as cannabis, marijuana is a plant that produces compounds called cannabinoids, such as tetrahydrocannabinol (THC). All thing is Pennsylvania Medical Marijuana - Reviews, News & Friendly Discussions For All VERY FAINT LINE ON DRUG TEST FOR THC NEED HELP FOR EMPLOYMENT TEST!!! Question/Help i have drug test probably in a week for employment in UAE i haven’t smoked in 6 days i was a moderate user smoked 3/4 times per week is this is still …. Very faint line on drug test Question/Help Got a drug test at labcorp. However, any line in the test area, no matter ho w faint, should be interpreted as a negative test. cs106b stanford Is this marijuana test negative? Has faint line. VANCOUVER, British Columbia, Aug. She said a very faint line shows up at about 8 minutes so she scheduled an appointment in 3 weeks but that is too long of a wait I went to dollar store once again (im obsessing a little I know) and got 5 more tests 2. The Fentanyl test kit detects Fentanyl through visual interpretation of color development on the strip. Confirmation of a negative result. Attached Files: 1472136550061-216696369. During the extra month i had to get clean, i was constantly testing myself with at home drug tests, keep in mind, a faint line, means NEGATIVE, which means, YOU'RE GOOD HOMIE!. Hopefully maybe a nurse will chime in looks like a lot of people are uninformed. The necessity of animal testing is a sad one for the process of drug discovery, but there’s seemingly no good alternative to mice, even though they’re not particularly accurate hum. We live in a time when creative work can be had on the cheap. Goldberg 2021-04-29 A practical guide translating clinical trials findings, across major psychiatric disorders, to devise tailored, evidence-based treatments. ToxTests offers the largest online catalog of Drug & Alcohol Test Kits available - for any budget and for any industry. Q: How accurate is Equate Home Drug Test? A: Equate Home Drug Test is highly accurate when used correctly. Do you think I’m going to pass? I haven’t smoked in two weeks. Possible Causes of Faint Line on Drug Test. Easy@Home Single Panel Marijuana/THC Urine Drug Test EDTH-114. The test with the darker line was taken last night (4/29/2020) and the other lighter Test line was taken today around 11:30am (4/30/2020). Therefore any line, no matter how faint, is a negative result, and no drugs were present. I know tests do not identify the amount of THC in your system, so does anyone know why the negative line tends to be faint?. How to Use the THC Calculator Online. super why mrs beanstalk Low body fat & fast metabolism along with a active lifestyle. Im average height and weight and exercise about 4 times a week. I sent a picture in to the company and they confirmed I was negative. What Does a Faint Line on a Drug Test mean? A faint line on a drug test is still a line, so if you have a faint line in the Test Region (T) then you have a negative drug screen result. It is important to select a specimen type and cutoff level based on the desired window of detection and any regulatory requirements. This Included Under Home Marijuana Drug Test is easy to apply. I would say you will probably be fine with just dilution the morning of the test. These things, like home pregnancy tests just, check to see if two chemicals react, rather than using complex equipment that may cost. As long as your job is following the same policy for you as they do for everyone else. Solid lines on all except the 20ng/ml which was two faint lines. Add your thoughts and get the conversation going. This is a cvs at home test will I pass? Locked post. It doesn't have to be a heavy line and any kind of line, no matter how faint, indicates a negative on the test. line next to the word Control AND a red or pink colored line next to the word Drug indicates a Negative Result for that drug, regardless of how dark or faint the lines may appear. new ga scratchers I ate a lot of poppy seed muffins for breakfast. redcon gym The most common type of test is called the immunoassay. I took a home drug test a few days ago and the thc showed up negative. book not rejected just unwanted But please tell me if you haven’t passed with faint lines at home. The Rapid Detect 5 panel drug test cup boasts an accuracy of up to 99%. These drug tests are made to provide consistent. If the cutoff was 40 ng/ml and the person had 43 ng/ml of the drug, they might be able to lower it to 39. Forums Smoking Marijuana & Consumption Marijuana Consumption Q&A Seasoned Marijuana Users. The negative result indicates that the drug concentration is below the detectable cutoff level. alright thank you just got mad anxiety. Secondly, you should be aware that dollar store drug are not very accurate. As a general guide THC can be detected in a standard 50ng urine drug test for THC for up to 30 days after use, depending on various factors such as frequency and amount of use, metabolism, and body fat percentage. " but the main question is, if I do smoke, will I …. Is a faint line on a drug test a negative result? Yes. I stopped smoking weed for 10 days and today I took a 32 qcarb flush and I did what it said to do and when I went to see my po the line for thc was faint and he’s sending it to the …. I've drug tested people I personally know outside of work in which I know they don't use and have had faint red lines. Never ever taken benzodiapines in my life, yet the line is the faintest on the test. That’s why you have to do everything possible to lower the THC saturation to a. just different molecular structures and the process of abstracting the "chenical" is different. Advertisement If you were watching a cooking sho. In short, a line forms when the metabolite screened for is below the detection threshold or "cut-off level," the industry-standard minimum that allows for drug detection with minimal interference from cross-reactant substances. Members Online • Natural-Cable-6306. No further testing is required. Hi u/Imaginary_Bother_200 , "lines" can stay in your urine anytime from 24 to 48 hours. The masking products cause frequent urination, which flushes the drug out of the person's system. tgirls sac You cannot draw conclusions from line differences. Getting a very very VERY faint negative line on my at home THC tests now. I always hear a line is a line but I’d wait if you could a few more. This is to dilute your urine and the fish is for specific gravity tests. I suggest taking a few more just to be safe. Buy Easy@Home 5 Panel Instant Drug Test Kits - Testing Marijuana (THC), COC, OPI 2000, AMP, MET/mAMP- Urine Dip Drug Testing NOTE: A very faint test line still means a negative result. (CSE: BLO) (OTC PINK: BLOZF) (the “Company or Cannabix VANCOUVER, British Columbia, A. Hey, I think these things are pretty accurate. Every other brand I test with is definitely showing negative I am going to get a lab test but I spent probably 100 dollars on drug confirm tests already (a 14 panel and 4 THC panels). Just wanted you guys/girls with questions about faint lines to know my results. This is still a NEGATIVE result,even if it's hardly apparent. pottery barn quilt full Find helpful customer reviews and review ratings for Exploro Highly Sensitive at Home Marijuana Drug Test Kit, THC Drug Test Kit Marijuana/Weed, THC Drug Test Urine, Easy Home Drug Test Marijuana/THC Substance Abuse, 15 THC Test Strips/Sticks, 50 ng/ml at Amazon. Different drug testing devices are used to detect the multiple drugs simultaneously. As little as one bagel or muffin can affect drug test results for up to 60 hours. Just got off probation and had to dilute so it works for sure, without a doubt. 10 Pack - Easy@Home Marijuana (THC) Single Panel Drug Tests Kit - Individually Wrapped Single Panel THC Screen Urine Drug Test Kit with 50 ng/ml Cutoff Level - EDTH-114 Visit the Easy@Home Store 4. The test line, on the other hand, appears when a specific drug metabolite is detected in the sample. In this table you can find general detection times for weed. There are some things to consider when determining your urine drug test. Urine drug testing detects recent drug use and is the only testing method approved for federally-mandated testing. craigslist louisville boats for sale by owner EXCLUSIVE SINGLE PANEL MARIJUANA DRUG TEST - The accurate single test strip detects THC in any form including CBD and hemp products at the 15 ng/mL level, and with 99% accuracy. Im a smoker too and have to just completely quit till I get out of this shit. The first one I took was definitely positive. Levels of hCG in your body will increase over the course of your pregnancy. We would like to show you a description here but the site won’t allow us. I’ll be testing at 33 days clean. Hi u/throwaway149638 , "lines" can stay in your urine anytime from 24 to 48 hours. This video explains the common query over faint lines on drug tests and why they are part of the design and a feature of these tests, products and instructi. I've been looking through the subreddit and it seems that most (if not, almost all) drug tests for THC have a result with a faint line. Because of the chemical composition of certain drugs and metabolites along with the test strip chemistry, variation in cut-off levels for each drug, and expected variation in human donor specimen, it is normal for some lines to appear more intense (darker) than others. CBD doesn't get you high, but that doesn't necessarily mean it won't show up on a drug test—we checked with the experts to see how concerned we should really be about CBD and drug. This is how drug testers in Australia are trained. today i tested and got a kinda faint but still pretty visible line for the negative side. However, I’m been using clonazepam (Klonopin), which is a benzo notorious for often not being detectable with normal BZD drug tests. I’ve stopped smoking weed three weeks ago but I’m on the chubbier side and was a heavy smoker so I wanted to be sure. My friend that smokes daily, and smoked this morning took the same test, and. A common misconception is that a faint line on a drug test cup indicates a low level of drugs in the urine, or a “borderline” result. This topic is answered by a medical expert. Remove the “key” from the lid of the cup and insert the key into the socket on the side of the cup. A faint line means you are under 50/ng and you should be good. By burning fat you are releasing thc back to be peed out. Presence or lack thereof are all that matters. A marijuana drug test is easy to use and 98% accurate. I have a drug test tomorrow and even though I live in CO, they still test for thc. Hi u/ben_hp , cannabis can stay in your urine anytime from 5 - 95 days. Faint Line on Home Drug Test: Explaining Why It Occurs. I am getting a faint line on a at home test, with a upcoming Meps test which apparently is lab tested. don la greca net worth does this look negative to you? advice appreciated! Share. THC tests are more likely to have faint lines because of components of the test itself as well as more natural substances interacting with the regeant. And in some cases - especially at overly strong doses - marijuana has the potential to cause undesirable side effects. Since they are doing a urine test, a one time use of marijuana can show in your urine 5-8 days after smoking. Brightness of the lines means nothing. I kissed my boyfriend after he smoked a joint. As a result, drug testing, especially for THC (the psychoactive compound in cannabis), has become increasingly important in various settings such as workplaces and. Faint Line on First Check Home Drug Test. The test can find out if THC or related chemicals from marijuana called metabolites are in your urine. Sharing this in case anyone else's through-the-roof anxiety has them googling faint lines. 0 out of 5 stars Faint Second Line = THC is near or below the cut-off level of the test. They might consider the weakness of the test line as questionable (THC is diluted. 50 Add to Cart NOTE: A very faint test line still means a negative result. Choosing a more comprehensive panel may show you not only the drug but also the substances your drugs were cut …. A positive test only indicates past drug exposure. It turns out that one of the most common pieces of advice given to those plagued by a drug test is not true. If ur able to go to a smoke shop tomorrow before the test, pick up some qcarbo32 - its worth a shot, temporarily clears your system of “toxins” for a 4-5 hour window - worked for me. I read that ANY sight of a line in the T means testing. It's really hard to say, but it seems like you have a pretty fast metabolism. For someone like a donor who has never smoked in their life, THC tests can still show faint lines. Been clean for 30+ days after being a everyday flower smoker. 1 / Collect urine sample in a clean cup. Slumerican305 • Passing a drug test by holding pee. If I'm likely to fail a drug test from thc/cbd are there any alternatives? upvotes. These products include marijuana, THC vape juice, cannabis edibles, Delta 8/9, etc. By the third time I peed, I was going a normal yellow color. i used to smoke an ounce a week for a few years (being high 24/7, smoking 24/7) failed test at day 21, and failed test at day 31, then got almost invisible line at day 38 (friends couldnt see anything but i saw a very faint line pretty much invisible though). They are drug testing with a product called Reditest. Granted at home tests are not intensive as lab testing, but if you hydrated up before the test I believe you don't need to worry. I had a different person test me each time. Theres not an "infinite" ways of reading these tests. michigan lottery pick 3 results BimmerM3 said: I've taken two First Check Home Drug Tests for marijuana (cup version) during the past week. If you’re showing a faint line I wouldn’t worry. A faint line on a drug test may indicate that the person used a substance in the past, but there's not enough in their system to. dallas lil bam lyrics Done some research and the general consensus seems to be a. The danger comes with the interpretation of faint or absent lines. 2) Remove the cap from the dip card, and insert the absorbent end of the test into the urine sample, as close to the black max line, without going over, for a full 10 seconds. Blood tests are usually used to reveal current impairment, like in DUIs. I'm doing a drug test in the next 2 days at Labcorp, titled as "pre-employment urine drug screen". A confirmation test can be done by a more sensitive method if the screening test is positive. I took a mens multivitamin and did the trick, just waiting to hear back, and also did a detox if you look at my previous post. Marijuana, also known as cannabis, is a plant material obtained from cannabis sativa. Rapid test results for a wide range of available drugs can be selected. If someone reviewed this test who did not have an up to date Rx for their glasses, they could easily miss it. If you use marijuana but your test is negative, it could be because your THC levels are below this level. Step #2: Keep an eye on that temperature strip. A faint line on a drug test is still a line, so if you have a faint line in the "T" area of the test then you have a negative drug screen. If a joint and a hit are all you've smoked in 2 months, and you still have 2 weeks left to go, I would think you'll be just fine. I have no idea how that it showed up today when I have taken multiple tests in the same location. Drug test scientists refer to this as "matrix interference. The Significance of Faint Lines On Drug Tests. A faint line should not be intrepreted as a quantitative signal. Aside from launching a legal challenge, your best defense against urine testing is to be clean. Any presence of a line faint or not means you're negative the opacity of the line doesn't correlate with anything. Lab im not sure tbh cause they remove all other constitutes of cannabis except for THC so test. Also cocaine line looking faint but with the same brand test the week before (same cutoff) it showed a much stronger line. What causes the faint horizontal lines I can see on my monitor? Advertisement Most likely, you have purchased a Cathode Ray Tube (CRT) monitor based on Sony's Trinitron technology. I took this at home test yesterday and got a VERY VERY faint line. WHY: In general, THC stays in the system longer than any other drug due to the fact that THC residue. 2 lines is a pass while if the test line is invisible then that's a fail. ; The detection window varies based on usage patterns, from 1-5 days for occasional users to 4-6 weeks for multiple daily users. allergy report oklahoma Please contact us @ 888-562-5852 if you have any questions. Thomas Russo, MD, a professor and chief of infectious diseases at the. I did 1 bump of coke on Friday night I drank a lot of water Sunday approx 1 gallon. However, for infrequent users, THC may only be detectable for a few days after use. I see it in the results OP posted. One red line should be in the control region (C), and another apparent. Regeneron shares soar after Donald Trump touts its drugs on Twitter Shares of Regeneron are soaring after the US president Donald Trump, who tested positive for Covid-19 last week,. 50ng is far off from 15ng though. I took a home test this am and the line was there, but somewhat faint, I can send p … read more. However, the cutoff levels vary between tests. What does THC on a drug test mean? THC-drug test meaning-THC stands for tetrahydrocannabinol. information on drug testing issues, drug testing kits and instructions provided by htt. Will this pass a lab test? Question I have my test on Monday and I took this today. The test I bought off Amazon give me 2 double lines when im clean. Place the cup on a flat and level surface. The most typical reason for a weak T-line is that there is drug present in the sample but not enough to give a positive result beyond the test's. Reply reply Dangerous_Sea1612. The drug test came back positive for THC metabolites. With other drugs the minimum amount is relatively low, like marijuana (50ng/mL). Moreso, these point of care tests are a little more sensitive than a laboratory test. I had a different person test me each …. Before I quit smokin I was a daily dabber consuming 2g or so per week. If you have an employee test for marijuana and opioids in their test and there are faint lines on both, the test is negative. The faint line is always asked in regards to THC because thc has a low threshold so line is typically faint. I dont know why, but it seems the line for THC is always super light. Premium Powerups Explore Gaming I see the faint line. FDA 510(k) Cleared for Home Use (OTC Use), CLIA Waived for professional use; Same science used as Lab screening test; FDA …. Calculate: Click the ‘Calculate’ button to estimate the detox time. Would this be considered a positive or negative thc? I really need help @ 25% THC/2. A 10-panel drug test reveals the presence of methadone, cocaine, marijuana, amphetamines, methamphetamines, barbiturates, opiates, oxycodone, phencyclidine or bezodiazepines in hum. Valheim Genshin Is this positive or invalid my drug test is in 2 hours. Nov 4, 2010 · Starting now: Try to stay away from alot of fatty foods up until 2 days before the test. craigslist puerto vallarta long term rentals Goldberg 2021-04-29 A practical guide translating clinical trials findings, across major psychiatric disorders, to devise tailored, evidence-based agencies to drug test federal employees involved in sensitive positions as well as positions involving public safety. Workout, cardiovascular for sure burn some of the fat in your body. In this article, we will delve into the background information, provide relevant data, and discuss perspectives from experts to shed light on this issue. Valheim Genshin Impact Minecraft Pokimane Halo Infinite Call of Duty: Warzone Path of Exile Hollow Knight: Silksong Escape from Tarkov Watch Dogs: Legion. This video reviews the role of home drug tests, drugs commonly included in-home drug tests, and the appropriate use of home drug tests. Test with your first pee of the day and catch the beginning of the stream, if you get a line then I'd think you're good. Ching 1975 The completely updated, illustrated bestseller on architectural graphics with over 500,000 copies sold Architectural Graphics presents a wide range of basic graphic tools and techniques designers use to communicate architectural. Don't listen to anyone who says a faint line is a "borderline" result - the EMIT test cannot infer the level of metabolites in your sample. That line was so faint, I felt like a teenager trying to deny a positive pregnancy test. Hi u/GasAssSushi21 , cannabis can stay in your urine anytime from 5 - 95 days. The presence of a test line, regardless of how light, indicates a negative result. Business, Economics, and Finance. However, if they had 4000 ng/ml of the drug in. The 'C' region indicates that the test is working properly, and the 'T' region indicates whether a particular drug being tested is present. 3rd level – 150ng/ml, Occasional to habit smoking, every other day. cartoon cat walking gif I know a faint line usually means a negative test, but this is the most faint line I have ever seen. It looks like a faint line but the pic is kinda blurry… but a line is a line, maybe add on a clearer picture so that we can see. Most likely on a lab; normally lower cutoff, you would most likely come back Positive in my opinion. mojosales flea market I bought a few tests from Amazon which have come back negative, but the 15 ng/mL test shows the FAINTEST line, like I have to shine a flashlight on the strip to see that it's even there. All the tests came back with one hard line and one faint line. For example, a 2017 study in JAMA found that 18 of 84 CBD products, all purchased online, had THC levels. your negative thats what faint line means thats why the test shows a faint line all thc is faint as it has a 1mg cu toff you can not detox thc with drinks thats a scam. Nov 17, 2022 · THC 20 ng/mL test, THC 15 ng/mL, COC 150 ng/mL). Yes, faint lines DO indicate negative results! The presence of a test line, regardless of how faint, is indicative of a negative result. took an at home after drinking some water to get a control test. If the drug test is positive one colored line will appear in the control region. Anti Journal Journal - Finished. i was passing the easy @ home tests for 50 and failed my drug test with a level of 61. I passed the home test with a very faint line but worried I will fail the lab if the very faint line means there may be a tiny amount of thc. A basic lab test is just $75, which is a lot easier to pay for if you have a job. Valheim Genshin Pre employment test coming up. D Monks Ongoing Mixed LED Soil Journal - Finished. In the case of positive test result, the test line will be absent for the corresponding drug being tested. Is this a pass? I have a test in 8 days and currently getting these incredibly faint lines and no line on an equate test. The intensity of the line doesn't really matter, because all drug tests just look if it is below or above a certain threshold. I was seeing negatives on “easy@home” tests and used one of these as well. It looks at how the drug test kits work and how reliable they are in .