ජීවිතේට ගංජා ගහලා නැතුව, ටෙස්ට් එක පොසිටිව් වෙන්නේ කොහොමද? 🤔

[ozykolla]

@imhotep විය හැකි ද?

ඇල්කොහොල් නම් බඩේ මොකක්ද ලෙඩක් තියන උන්ට පොසිටිව් වෙනවා අහලා තියෙනවා.
ඒත් ගංජා?

 

[Monkey D Dragon]

නිතරම එක දිගට 2nd hand smoking වෙනවා නම් ගංජා & අයිස් teeny tiny chance එකක් නැහැ කියන්නත් බැහැ .

මූට නම් කොහොමත් දැන් game over ලංකාවේ , මූව අනිවා positive වෙනවා .
ඒත් ඕක මූව බොරුවට positive කරන කතා ගියොත්,
ඇත්තට positive උනත් news යන්නත් ඉඩ තියෙනවා positive නැති විදිහට .

සේරටම අදාල වෙන්නේ නම බේරා ගැනීම උඩින් ඉන්න උන්ගේ

 

[nppcheguevara]

gahana un ekka innawa athi! duma yanawa ne!

 

[SimMaster]

ගුලි කන්නේ නෑ කියලා නෑනේ

 

[Sri_Sampath]

When screening a person for possible marijuana use, it is important not to make assumptions from an initial result from a positive immunoassay test, and to confirm a positive result with GC-MS. If a person is taking efavirenz, you have limited evidence to suspect a false-positive result, whereas it is much less likely for NSAIDs, hemp food consumption, or passive marijuana inhalation to cause a false-positive result. It is important to take into consideration recent medication use before making a decision on how to act on a positive urine drug screen for marijuana.

---

False-Positive Screens​

Passive marijuana inhalation has been thought of as a potential reason for a false-positive marijuana urine drug screening. Three studies were performed to analyze this theory: one with participants exposed to secondhand smoke in a small, enclosed room for 1 hour, another study with participants exposed to the smoke daily for 3 consecutive days, and the third study was with participants exposed to smoke in a small, closed station wagon. Eighty different urine samples were analyzed; only two samples exceeded the 20 ng/mL threshold used in their immunoassay test – and those just barely.10

Based on the results of these studies, a positive result for marijuana due to passive inhalation would be highly unlikely when using the standard threshold of 50 ng/mL for initial screening.

Another potential source of urine drug screen interference is thought to be the use of non-steroidal anti-inflammatory drugs (NSAIDs). One study evaluated three drugs (ibuprofen [Advil, Motrin, others], naproxen [Aleve, Naprosyn, others], and fenoprofen (Nalfon, others) in patients taking them chronically or acutely. The authors theorized that NSAIDs would interfere with the immunoassay test through interference with the enzyme reaction, production of erroneous absorbance reading, or secretion of an endogenous substance that inhibits cannabinoid binding to an antibody. Of the 510 urine samples collected from 102 participants, 10 samples (2%) tested positive for cannabinoids. Follow-up GC-MS tests showed that eight of the 10 samples (80%) were true positive for cannabinoids. Of the two samples that were positive due to NSAID use, one was from acute ibuprofen use (1,200 mg in one day), and the other was from chronic naproxen use (1,000 mg daily for no longer than 30 days).11 This study showed that it is unlikely for NSAIDs to cause a false-positive marijuana urine drug screen.

In addition to NSAIDs, efavirenz (Sustiva) is another medication thought to interfere with urine drug screens for marijuana. In a study looking at patients who were taking efavirenz 600 mg daily as an antiretroviral treatment for at least 14 days, 28 out of 30 participants had a false-positive urine drug screen using rapid response tests. The authors believed the interference was attributed to EFV 8-glucuronide, one of two major urinary metabolites of efavirenz.6 One limitation of this study is the failure of the authors to mention other medication use such as the synthetic cannabinoid dronabinol (Marinol, others), which has been shown to cause a false-positive in a urine drug screen for marijuana 30% to 45% of the time.12

Proton pump inhibitors (PPIs), particularly pantoprazole, have been associated with false positive THC screens. Drug labeling for Protonix (pantoprazole sodium) states: “There have been reports of false positive urine screening tests for tetrahydrocannabinol (THC) in patients receiving proton pump inhibitors including pantoprazole. An alternative confirmatory method should be considered to verify positive results.”13

However, two studies have found otherwise. A 2019 study published in Pain Medicine concluded there was no evidence supporting pantoprazole as the cause of false positives adding “[we] caution the use of proton pump inhibitors as an explanation for tetrahydrocannabinol immunoassay false positives.14 A 2020 study published in Clinical Toxicology concluded that oral PPIs did not cause a false-positive THC using the THC One Step Marijuana Test Strip.15

A report from 2012 identified baby soap as the cause of THC false positives in urine drug screens. The authors suspected false positive THC screening results in newborns at their institution. They conducted a study and found that adding commercially available baby soaps (including head-to-toe wash) to drug-free urine produced a dose-dependent measurable response in the THC immunoassay.16

------ Post added on Jan 30, 2026 at 3:31 PM

 

[Sri_Sampath]

ඕක කරපු Method එක මත නඩු දැම්මොත් පොලිසියට කෙළවෙන්න තියන chance එක වැඩි

Screening (Immunoassay)

• Purpose: Rapid, preliminary, qualitative screening (positive/negative).
• Accuracy: Susceptible to cross-reactivity (false positives) with non-THC substances (e.g., ibuprofen, hemp products) or other isomers like Delta-8.
• Methodology: Uses antibodies to detect the presence of a class of drugs (e.g., cannabinoids) above a set cutoff level.
• Turnaround Time: Minutes to hours.
• Use Case: Workplace "on-the-spot" tests, quick initial medical checks.

Definitive Method (GC-MS / LC-MS/MS)

• Purpose: Confirmation, precise identification, and quantification (exact levels) of THC.
• Accuracy: Extremely high specificity; distinguishes between isomers (Delta-8 vs. Delta-9).
• Methodology: Separates and identifies individual compounds based on molecular mass and chemical properties.
• Turnaround Time: Days (requires lab analysis).
• Use Case: Forensic analysis, legal proceedings, workplace drug test confirmation (required if screen is positive).

Key Differences

• Cut-off Levels: Screening methods generally have higher, less sensitive cut-off levels, while definitive methods use lower, more specific, and precise cut-offs.
• False Positives/Negatives: Screens are more prone to error; definitive tests are the "Gold Standard" for confirming whether a drug is actually present.
• Metabolite Detection: Definitive tests can identify specific metabolites, such as
  Δ9cap delta to the nineth power
  -carboxy-THC, which is essential for determining true recent usage.

In summary, a screen is used to narrow down, and a definitive test is used to prove, the presence of THC.

 

[Myth]

Bonakota langa hitiyaa , biwwe naa

 

[jhnnwp]

@imhotep විය හැකි ද?

ඇල්කොහොල් නම් බඩේ මොකක්ද ලෙඩක් තියන උන්ට පොසිටිව් වෙනවා අහලා තියෙනවා.
ඒත් ගංජා?

@Heshan Daminda me aththa da? lol

 

[dilann]

@imhotep විය හැකි ද?

ඌ වෙන්න බෑ .. මම හිතන්නේ පොර ඕවා පාවිච්චියක් නෑ

 

[Don GasCan]

පොලිසියට අරන් ගිහින් එල්ලලා කෙලියනම් ඕක හරියනවා

 

[රෝසි ආච්චි]

මෙයාගේ කෙස් වලින් පරීක්ෂණයක් කළා නම් හරි regular user කෙනෙක් නෙමෙයි කියලා ඔප්පු කරන්න.

 

[olu bakka]

Oya rapid test wala accuracy na 100% k. Wena medicine walatath react karanawa.

---

මෙයාගේ කෙස් වලින් පරීක්ෂණයක් කළා නම් හරි regular user කෙනෙක් නෙමෙයි කියලා ඔප්පු කරන්න.

Bus Driver: Ubat mawa wihiluwakata gattada??
------ Post added on Jan 30, 2026 at 5:40 PM

 

[Mahesh Wanasinghe]

up

 

[KarolisAppu]

mu ettatama bonne nettam uta eka oppu karala nidos wenna chance ekk thiyenna one.
ethakota anith minissuth ekata challenge karanna balanawa
ettatama ape rata motor traffic nadu giyama kawruth challenge karanne ne. ohe kiyana ganak gewala enawa eka lesi nisa
but ettatama e minissu challenge karanam niweradi wenna ona tharam chance thiyanawa

methanath wenne samanya miniha weradi kara kiyala mathe idala talk karana eka. e kiyanne apita kawada hari oya wage ekak unath apitath enne me wage replies da ?

 

[imhotep]

@imhotep විය හැකි ද?

ඇල්කොහොල් නම් බඩේ මොකක්ද ලෙඩක් තියන උන්ට පොසිටිව් වෙනවා අහලා තියෙනවා.
ඒත් ගංජා?

Rapid tests can sometimes report false positives, in which case confirmatory Gold Standard testing needs to be done. There are in fact two methods available GC/MS & LC/MS. ( Gas chromatography-mass spectrometry and Liquid chromatography-mass spectrometry )
The GC/MS is faster, while LC/MS can identify a broader range of compounds.
It's said that frequency of false positives are noticeably lower than false negatives.

 

[sinhawanshaya]

නිතරම එක දිගට 2nd hand smoking වෙනවා නම් ගංජා & අයිස් teeny tiny chance එකක් නැහැ කියන්නත් බැහැ .

මූට නම් කොහොමත් දැන් game over ලංකාවේ , මූව අනිවා positive වෙනවා .
ඒත් ඕක මූව බොරුවට positive කරන කතා ගියොත්,
ඇත්තට positive උනත් news යන්නත් ඉඩ තියෙනවා positive නැති විදිහට .

සේරටම අදාල වෙන්නේ නම බේරා ගැනීම උඩින් ඉන්න උන්ගේ

ගහන එවුන් ගාව ගහන්නෙ නැති එකෙක් ඉඳලා, උට වැදිලා අපිව වඳුරො වගෙ පෙනවාලු!

 

[NRTG]

මුන දැක්කම ගංජා ගහන්නේ නැහැ කියලා දිව්රලා කිව්වහැකි

 

[jhnnwp]

මෙයාගේ කෙස් වලින් පරීක්ෂණයක් කළා නම් හරි regular user කෙනෙක් නෙමෙයි කියලා ඔප්පු කරන්න.

@scurvy love bald head will get answer with manna pihiya

 

[gihand4r]

laga hitiyath athi itin. bona ewun laga inwa wage nemene bn smoke karana ewun laga ididi. smoke eka inhale wenwa u smoke kare nathi wunata utath wadinawa

 

[Brandy2020]

ගුලි කනවා, සමහර ආයුර්වේද බෙහෙත් වලත් තියෙනවා