Home Urine test and what the Faint Line means

Negative or Positive Test Result ?

 

ALL THC LINES ARE FAINT

 IF YOU CAN SEE IT THEN ITS NEGATIVE 

 Is your self test Qualitative or  Semi quantitative  ?

A very common question with people who are worried about seeing a faint line on the home reagent dip strip/cup  test is what does this mean ? 

These are strips which serve different purposes, such as a qualitative strip that only determines if the sample is positive or negative, such as most cheap single store bought dip strip test ( can be cup type as well).  

 

These are a basic preliminary qualitative (quality )  test and thus are not SEMI quantitative  (quantity ) test so they will not show a estimate of a quantitative result in which a color reaction is proportional to the concentration of the substance in sample carried out by comparing the test pad to a chart or react to a lighter / darker line like a CARD or CUP that is SEMI quantitative . 

SEMI quantitative self urine test

Each one of these has a different cut off level and in this case lines get lighter due to lower cut off . As you see the lowest is very faint but just as negative as the highest dark line typical of coke and opiate .

LONG STORY SHORT PEOPLE 

AS LONG AS YOU SEE TWO LINES ITS NEGATIVE  NO MATTER HOW FAINT

 

FAINT LINE ON PRELIMINARY QUALITATIVE   DOES NOT MEAN BORDERLINE

 

 If a strip also used in cups has multi colored indicators its a SEMI quantitative  (quantity ) typical of a Validation panel in addition to the drug screen . These will show If the creatinine and specific gravity (urine density),Ph ,nitates are in range ( this shows if sample is diluted) , as well as other factors to determine if sample is in human range and even shows no additive are present.

  

 

 

 

 

 

 

SVT   SPECIMEN VALIDITY TEST

Sometimes a lab will use a reagent stick validation before "accepting" the sample to sent to the lab for drug screening . regardless all samples received at lab will perform validity screen.

 a validation test verifies its ph, color, specific gravity ( verifies dilution ) creatnine level ( not creatine) and looks for nitrates or non urine AGENTS

READING THE STICK   OF SELF TEST

When reading the drug test result, you will find a line at the very top of every testing window and that is the control region (C). The test is not considered valid without this line. Result is considered negative when a colored line appears in both the control (C) and test (T) region. If the colored line appears in the control region but not in the test region, the test is considered to be positive. Nevertheless, presence of any faint line in the test region (T) will indicate negative results no matter how light it is.

Presumptive Positive: One colored line is visible in the control (C) zone for that drug. No colored line whatsoever appears in the test (T) zone, indicating a presumptive positive result for the corresponding drug.
Negative: Colored lines are visible in both the control (C) and test (T) zones, indicating that concentration of the drug is below the detection limit of the test or not present. 

 

 VAST MAJORITY OF SELF TEST ARE CHEAP SINGLE STICK REAGENT  

As long as your not diluted  and not using first morning pee you get best reading . If doing multiple during a detox do them same time of day  no heavy or excessive  fluid intake. If you see a faint line then it will most likely be a little darker with a little extra fluid  but your good just don't super dilute as this will render a DILUTE sample for re test .