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Emit® II Plus 6-Acetylmorphine Assay:
The Emit® II Plus 6-Acetylmorphine Assay is a homogeneous enzyme immunoassay with 10 ng/mL cutoff. The assay is intended for use in laboratories for the qualitative and/or semiquantitative analyses of 6-acetylmorphine (6-AM), a heroin metabolite, in human urine. Emit® II Plus assays are designed for use with a number of chemistry analyzers.
Semiquantitative test results may be used to assess assay performance as part of a quality control program and to estimate a dilution of the specimen for confirmation by GC/MS.
The Emit® II Plus 6-Acetylmorphine Assay provides only a preliminary analytical test result. A more specific alternative chemical method must be used to obtain a confirmed analytical result. Gas chromatography/mass spectroscopy (GC/MS) is the preferred confirmatory method. Other chemical confirmation methods are available. Clinical consideration and professional judgment should be applied to any drug-of-abuse test result, particularly when preliminary positive results are used.

Emit® II Plus 6-AM/Ecstasy Calibrators/Controls:
When used as Calibrators, the materials are for the calibration of the Emit® II Plus 6-Acetylmorphine and Emit® II Plus Ecstasy Assays.
When used as Controls, the materials may be used as quality control materials based on the specific Emit® II Plus 6-Acetylmorphine and Emit® II Plus Ecstasy Assay cutoffs.

Emit® II Plus 6-Acetylmorphine Assay:
The Emit® II Plus 6-Acetylmorphine Assay is a homogenous enzyme immunoassay with a 10 ng/mL cutoff. The assay, used for the detection of 6-acetylmorphine (a heroin metabolite) in human urine, utilizes a two-reagent system. The Antibody/Substrate Reagent 1 is a liguid ready-to-use product comprised of mouse monoclonal antibodies to 6-acetylmorphine (6-AM), glucose-6-phosphate (G6P), and nicotinamide adenine dinucleotide (NAD) in a diluent containing bovine serum albumin (BSA), preservatives and stabilizers. The Enzyme Reagent 2 is a lyophilized product containing 6-AM labeled bacterial recombinant glucose-6-phosphate dehydrogenase (rG6PDH) in a diluent containing bovine serum albumin (BSA), Hepes buffer, preservatives and stabilizers. Reagent 2 is reconstituted with either deionized or distilled water.
The assay kit consists of Reagent 1 and Reagent 2 in plastic containers (Reagent 2 is provided in a plastic bag with desiccant) and is available in two sizes. Emit® II Plus Assays are designed for use with a number of chemistry analyzers.

Emit® II Plus 6-AM / Ecstasy Calibrators / Controls Levels 1 - 4:
The Emit® II Plus 6-AM / Ecstasy Calibrators / Controls are in-vitro diagnostic products used in the calibration of the Emit® II Plus 6-Acetylmorphine Assay and the Emit® II Plus Ecstasy Assay. These materials may also be used as quality controls based on the specific 6-Acetylmorphine Assay or Ecstasy Assay cutoffs.
The calibrator / control products have the same formulation as the existing Emit® II Plus Ecstasy Calibrators / Controls: cleared under K043028. The matrix is pooled, drug-free. human urine based product containing 6- acetylmorphine (6-AM), methylenedioxymethamphetamine (MDMA) and preservatives. The four levels of product are packaged separately in 15 mL plastic vials with a 10 mL fill per vial.
The multi-analyte Calibrators / Controls Levels 1 through 4 contain 6-AM and MDMA at the following concentrations:
Level 1: Targeted 6-AM Concentration (ng/mL) 5, Targeted MDMA Concentration (ng/mL) 150
Level 2: Targeted 6-AM Concentration (ng/mL) 10, Targeted MDMA Concentration (ng/mL) 300
Level 3: Targeted 6-AM Concentration (ng/mL) 15, Targeted MDMA Concentration (ng/mL) 500
Level 4: Targeted 6-AM Concentration (ng/mL) 20, Targeted MDMA Concentration (ng/mL) 1000
The Emit® Calibrator / Control Level 0, which contains no drug and was cleared under K993755 will also be used with the Emit® II Plus 6- AcetyImorphine Assay. There was no change to the Calibrator Level 0 product.

Acceptance Criteria and Device Performance for Emit® II Plus 6-Acetylmorphine Assay

The Emit® II Plus 6-Acetylmorphine Assay is an in-vitro diagnostic device designed for the qualitative and/or semiquantitative analysis of 6-acetylmorphine (6-AM), a heroin metabolite, in human urine. The device's performance was evaluated against a predicate device and confirmed using Gas Chromatography/Mass Spectrometry (GC/MS).

1. Acceptance Criteria and Reported Device Performance

The acceptance criteria for the Emit® II Plus 6-Acetylmorphine Assay are implicitly defined by its agreement with GC/MS results for qualitative and semiquantitative analysis, particularly around the 10 ng/mL cutoff. The reported performance demonstrates high agreement with GC/MS.

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