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The Astute Medical NEPHROCHECK® Test System is intended to be used in conjunction with clinical evaluation in patients who currently have or have had within the past 24 hours acute cardiovascular and or respiratory compromise and are ICU patients as an aid in the risk assessment for moderate or severe acute kidney injury (AKI) within 12 hours of patient assessment. The NEPHROCHECK® Test System is intended to be used in patients 21 years of age or older.

The Astute NEPHROCHECK® Test System is comprised of the NEPHROCHECK® Test Kit, the ASTUTE140® Meter Kit, NEPHROCHECK® Liquid Controls Kit and the NEPHROCHECK® Calibration Verification (Cal Vers) Kit. The system is designed to be used by trained medical professionals in the central laboratory. The NEPHROCHECK® Test Kit, includes the NEPHROCHECK® Test which is a single-use cartridge comprised of two immunoassays for the protein biomarkers, insulin-like growth factor-binding protein (IGFBP7) and tissue-inhibitor of metalloproteinases 2 (TIMP-2) on a membrane test strip enclosed in a plastic housing. The concentrations of the TIMP-2 and IGFBP-7 proteins are used to derive an AKIRISK® Score. The test procedure involves the operator applying a clinical urine sample mixed with labeled fluorescent conjugate to the NEPHROCHECK® Test cartridge, and then inserting the Test cartridge into the ASTUTE140® Meter for incubation, result calculation and result display. Internal positive and negative procedural controls in each NEPHROCHECK® Test cartridge monitor the function of each test cartridge. If the automatic check of these procedural controls shows that the control value results are not within pre-defined limits, the ASTUTE140® Meter will display an error message and the Test result will not be reported. Included in the NEPHROCHECK® Test is test buffer and the NEPHROCHECK® Test Conjugate Vial which contains murine monoclonal and goat polyclonal antibodies against TIMP-2 and IGFBP-7, fluorescent dye, stabilizers and excipients. Each Kit has the materials necessary to perform 25 tests. Each NEPHROCHECK® Test Kit also contains a lot-specific radio-frequency identification (RFID) card containing lot and calibration information. The RFID card information must be loaded prior to using a new Test kit lot. The AsTUTE140® Meter is a bench-top analyzer that converts the fluorescent signal from each of the two immunoassays (TIMP-2 and IGFBP7) contained within the NEPHROCHECK® Test cartridge into the AKIRISK® Score. The NEPHROCHECK® Test result is displayed on the Meter LCD screen in approximately 20 minutes from the addition of the specimen. Only the AKIRISK® Score appears on the Meter display. The ASTUTE140® Meter contains an internal printer that can print the AKIRISK® Score. The NEPHROCHECK® Low Liquid Control and NEPHROCHECK® High Liquid Control are bi-level, lyophilized control materials prepared from human urine containing human TIMP-2 and human IGFBP7 proteins with protein stabilizers. TIMP-2 and IGFBP-7 proteins have been added to the urine to achieve specified target concentration levels. Each NEPHROCHECK® Liquid Controls Kit also contains a high and low RFID encoded with the Liquid Control Kit lot number, expiration date, and the expected range of concentration values based on + two standard deviations in the measurement of each protein biomarker (TIMP-2 and IGFBP-7) in each Liquid Control level. Each NEPHROCHECK® Liquid Control Kit Vial is intended for single use only. The NEPHROCHECK® Calibration Verification Kit includes five levels of Iyophilized material prepared from human urine, containing TIMP-2 and human IGFBP-7 to achieve specified target concentration levels that evenly span the reportable range of the AKIRISK® Score. The expected concentrations and standard deviations of the individual biomarkers are printed on an enclosed Values Card.

The Astute Medical NEPHROCHECK® Test System is intended to be used in conjunction with clinical evaluation in patients who currently have or have had within the past 24 hours acute cardiovascular and or respiratory compromise and are ICU patients as an aid in the risk assessment for moderate or severe acute kidney injury (AKI) within 12 hours of patient assessment. The NEPHROCHECK® Test System is intended to be used in patients 21 years of age or older.

The Astute NEPHROCHECK® Test System is comprised of the NEPHROCHECK® Test Kit, the ASTUTE140® Meter Kit, NEPHROCHECK® Liquid Controls Kit and the NEPHROCHECK® Calibration Verification (Cal Vers) Kit. The system is designed to be used by trained medical professionals in the central laboratory. The NEPHROCHECK® Test Kit, includes the NEPHROCHECK® Test which is a single-use cartridge comprised of two immunoassays for the protein biomarkers, insulin-like growth factor-binding protein (IGFBP7) and tissue-inhibitor of metalloproteinases 2 (TIMP-2) on a membrane test strip enclosed in a plastic housing. The concentrations of the TIMP-2 and IGFBP-7 proteins are used to derive an AKIRISK™ Score. The test procedure involves the operator applying a clinical urine sample mixed with labeled fluorescent conjugate to the NEPHROCHECK® Test cartridge, and then inserting the Test cartridge into the ASTUTE140® Meter for incubation, reading, result calculation and result display. Internal positive and negative procedural controls in each NEPHROCHECK® Test cartridge monitor the function of each test cartridge. If the automatic check of these procedural controls shows that the control value results are not within pre-defined limits, the ASTUTE140® Meter will display an error message and the Test result will not be reported. Included in the NEPHROCHECK® Test is test buffer and the NEPHROCHECK® Test Conjugate Vial which contains murine monoclonal and goat polyclonal antibodies against TIMP-2 and IGFBP-7, fluorescent dye, stabilizers and excipients. Each Kit has the materials necessary to perform 25 tests. Each NEPHROCHECK® Test Kit also contains a lot-specific radio-frequency identification (RFID) card containing lot and calibration information. The RFID card information must be loaded prior to using a new Test kit lot. The AsTUTE140® Meter is a bench-top analyzer that converts the fluorescent signal from each of the two immunoassays (TIMP-2 and IGFBP7) contained within the NEPHROCHECK® Test cartridge into the AKIRISK™ Score. The NEPHROCHECK® Test result is displayed on the Meter LCD screen in approximately 20 minutes from the addition of the specimen. Only the AKIRISK™ Score appears on the Meter display. The AsTUTE140® Meter contains an internal printer that can print the AKIRisk score. The NEPHROCHECK® Low Liquid Control and NEPHROCHECK® High Liquid Control are bi-level, lyophilized control materials prepared from human urine containing human TIMP-2 and human IGFBP7 proteins with protein stabilizers. TIMP-2 and IGFBP-7 proteins have been added to the urine to achieve specified target concentration levels. Each NEPHROCHECK® Liquid Controls Kit also contains a high and low RFID encoded with the Liquid Control Kit lot number, expiration date, and the expected range of concentration values based on + two standard deviations in the measurement of each protein biomarker (TIMP-2 and IGFBP-7) in each Liquid Control level. Each NEPHROCHECK® Liquid Control Kit Vial is intended for single use only. The NEPHROCHECK® Calibration Verification Kit includes five levels of lyophilized material prepared from human urine, containing TIMP-2 and human IGFBP-7 to achieve specified target concentration levels that evenly span the reportable range of the AKIRISK™ Score. The expected concentrations and standard deviations of the individual biomarkers are printed on an enclosed Expected Values Card.

The Astute Medical NEPHROCHECK® Test System is intended to be used in conjunction with clinical evaluation in patients who currently have or have had within the past 24 hours acute cardiovascular and or respiratory compromise and are ICU patients as an aid in the risk assessment for moderate or severe acute kidney injury (AKI) within 12 hours of patient assessment. The NEPHROCHECK® Test System is intended to be used in patients 21 years of age or older.

The NEPHROCHECK® Test System is comprised of the NEPHROCHECK® Test Kit, the ASTUTE140 Meter, the NEPHROCHECK® Liquid Controls Kit, and the NEPHROCHECK® Calibration Verification (Cal Vers) Materials Kit. The NEPHROCHECK® Test Kit includes the NEPHROCHECK® Test which is a single-use cartridge comprised of two immunoassays for the protein biomarkers insulinlike growth factor-binding protein (IGFBP7) and tissue-inhibitor of metalloproteinases 2 (TIMP2), on a membrane test strip enclosed in a plastic housing. Internal positive and negative procedural controls in each NEPHROCHECK® Test cartridge monitor the function of each test cartridge. If the automatic check of these procedural controls shows that the control value results are not within pre-defined limits, the Meter will display an error message and the Test result will not be reported. The concentrations of the TIMP-2 and IGFBP-7 proteins are used to derive the AKIRisk Score and these concentrations are not reported. Also included in the kit is test buffer and the NEPHROCHECK® Test Conjugate Vial which contains murine monoclonal and goat polyclonal antibodies against TIMP-2 and IGFBP-7, fluorescent dye, stabilizers and excipients. A RFID Card that contains lot and calibration information is included with each kit. The RFID card must be loaded prior to using a new kit. Each kit can perform 25 tests. The ASTUTE140® Meter is a bench-top analyzer that converts the fluorescent signal from each of the two immunoassays contained within the NEPHROCHECK® Test cartridge into the AKIRisk score. Only the AKIRisk score appears on the meter display. The ASTUTE140® Meter contains an internal printer that can print the AKIRisk score The NEPHROCHECK® Low Liquid Control and NEPHROCHECK® High Liquid Control are bi-level, lyophilized control materials prepared from human urine containing human TIMP-2 and human IGFBP-7 proteins with protein stabilizers. TIMP-2 and IGFBP-7 proteins have been added to the urine to achieve specified target concentration levels. The expected concentrations and standard deviations are printed on the enclosed RFID cards. Each NEPHROCHECK® Liquid Control Kit Vial is intended for single use only. The NEPHROCHECK® Calibration Verification Kit includes five levels of lyophilized material prepared from human urine, containing TIMP-2 and human IGFBP-7 to achieve specified target concentration levels that evenly span the reportable ranges of the AKIRisk Score. The expected concentrations and standard deviations of the individual biomarkers are embedded on a RFID card enclosed with the NEPHROCHECK® Calibration Verification Kit. All human source material used to manufacture NEPHROCHECK® Liquid Controls and the NEPHROCHECK® Calibration Verification Kit was non-reactive for antigens to Hepatitis B (HBsAg), negative by tests for antibodies to HIV (HIV-1/HIV-s) and Hepatitis C (HCV), non-reactive for HIV-1 RNA and HCV RNA by licensed NAT, and non-reactive to Serological Test for Syphilis (STS) using testing methods approved by the FDA.