Acid, Lactic, Enzymatic Method

Reports per year

Source: FDA adverse event reports by year received, 2012–2026. Reporting paused during the 2026 MAUDE-to-AEMS transition and has since resumed.

Recent recalls

• 2025-09-12Open, ClassifiedDevice Design

  Chemistry Products LAC Slides. Catalog Number: 8433880. 1 Sales Unit = contains 5 cartridges of 60 slides, for a total of 300 tests.

  VITROS Chemistry Products LAC Slides on VITROS XT 3400 and VITROS XT 7600 Systems are experiencing an increased occurrence of calibration failure related to lots from coating 0130 and above with Condition Code TH4-63J during calibration, causing the delay of lac test results and potentially impact patient management. The issue was identified by QuidelOrtho through an increase in customer complaints compared to the historical baseline with average failure rate of 1% for coating 0130 in 2025 while average of failure rate for other coating was 0.06% in 2025 and average of failure rate for all coatings is 0.03% for 2024.

• 2025-09-12Open, ClassifiedDevice Design

  VITROS Chemistry Products LAC Slides. Catalog Number: 8150112. 1 Sales Unit = contains 5 cartridges of 18 slides, for a total of 90 tests.

  VITROS Chemistry Products LAC Slides on VITROS XT 3400 and VITROS XT 7600 Systems are experiencing an increased occurrence of calibration failure related to lots from coating 0130 and above with Condition Code TH4-63J during calibration, causing the delay of lac test results and potentially impact patient management. The issue was identified by QuidelOrtho through an increase in customer complaints compared to the historical baseline with average failure rate of 1% for coating 0130 in 2025 while average of failure rate for other coating was 0.06% in 2025 and average of failure rate for all coatings is 0.03% for 2024.

• 2020-02-18TerminatedNo Marketing Application

  i-STAT CG4+ cartridge (blue), List No. 03P85-50. UDI (01) 00054749002269 - Product Usage: The i-STAT CG4+ cartridge is intended for the quantitative measurement of lactate, pH, pCO2, and pO2 in venous, arterial or capillary whole blood.

  The I-STAT BLUE CHEM8+ and CG4+ cartridges are not FDA cleared and do not have CLIA waived status. CLIA recognizes two types of laboratory tests: waived and non-waived. Different CLIA standards apply to waived and non-waived tests as well as the facilities that perform these types of tests. The i-STAT CHEM8+ cartridge contains nine measured assays (sodium, potassium, chloride, blood urea nitrogen (BUN), ionized calcium, TCO2, glucose, creatinine and hematocrit) and is categorized as a CLIA waived test for venous whole blood samples, meaning this cartridge could be used in a facility with a CLIA Certificate of Waiver as a waived test.

• 2019-04-13TerminatedDevice Design

  Lactate Gen.2, Catalog Nos. 03183700190, 05171881190, 11822837190, ***added as of 5/10/19*** 03183700190 Product Usage: An In vitro diagnostic reagent system intended for use on cobas Integra for the quantitative determination of the lactate concentration in plasma and cerebrospinal fluid.

  New endogenous interference claims have been established for the following assays used on the cobas c 311 analyzer and the cobas c 501, 502, 701, 702, and Modular Analytics P/D modules which may have potential medical risk. ***Update: Cobas c111 and COBAS INTEGRA 400 plus analyzers are also impacted for BILT3 and LACT2 assays***

• 2016-11-09TerminatedUnder Investigation by firm

  ARCHITECT Lactic Acid Part # 09D891T21 The Lactic Acid assay is used for the quantitation of lactic acid in human plasma.

  Abbott has identified negative interference from the drug N-Acetyl Cysteine (NAC) with the ARCHITECT Lactic Acid reagent (LN 9D89-21).

• 2016-08-19TerminatedUnder Investigation by firm

  Siemens RAPIDPoint 500 v2.2.2A Software Upgrade Kit; SMN 11066719, Software Version 2.2A The RAPIDPoint 500 system is designed for professional use in a point-of care or laboratory environment. This system tests blood gases, electrolytes, metabolites, total hemoglobin, and hemoglobin derivatives in arterial, venous, and capillary whole blood samples. The following parameters are tested: pH, pC02, p02, Na+, K+, Ca++, Cl-, glucose, lactate, tHb, F02Hb, FCOHb, FMetHb, FHHb, nBili

  Some v2.2.2 upgrade kits include a dialysate mode which not cleared/approved for shipment in the United States

• 2016-02-02TerminatedUnder Investigation by firm

  ABX PENTRA Lactic Acid CP ref. A11A01721 reagent is intended for the quantitative in vitro diagnostic determination of lactic acid in plasma by colorimetry. Lactic acid measurements that evaluate the acid-base status are used in the diagnosis and treatment of lactic acidosis (abnormally high acidity of the blood).

  N-Acetylcysteine (NAC) present in the blood of patients treated for paracetamol overdose can interfere with the Trinder reaction that uses hydrogen peroxide catalytic on aminoantipyrine and phenol, and can produce falsely low results with the reagents using the Trinder reaction method.

• 2015-09-24TerminatedProcess control

  Siemens RAPIDPoint 500 Measurement Cartridge Lactate (750 tests) Part Number: 10491449 Product Usage: The RAPIDPoint 500 system is designed for professional use in a point-of-care or laboratory environment. This system tests blood gases, electrolytes, metabolites, total hemoglobin, and hemoglobin derivatives in arterial, venous, and capillary whole blood samples. The following parameters are tested: pH, pC02, p02, Na+, K+, Ca++, Cl-, glucose, lactate, tHb, F02Hb, FCHb, FMetHb, FHHb, nBili

  RAPIDPoint 500 measurement cartridge serial numbers 2517102517 through 2519000012, negative sodium bias on both QC and patient results

• 2015-09-24TerminatedProcess control

  Siemens RAPIDPoint 500 Measurement Cartridge Lactate (400) tests Part Number: 10491448 Product Usage: The RAPIDPoint 500 system is designed for professional use in a point-of-care or laboratory environment. This system tests blood gases, electrolytes, metabolites, total hemoglobin, and hemoglobin derivatives in arterial, venous, and capillary whole blood samples. The following parameters are tested: pH, pC02, p02, Na+, K+, Ca++, Cl-, glucose, lactate, tHb, F02Hb, FCHb, FMetHb, FHHb, nBili

  RAPIDPoint 500 measurement cartridge serial numbers 2517102517 through 2519000012, negative sodium bias on both QC and patient results

• 2015-09-24TerminatedProcess control

  Siemens RAPIDPoint 500 Measurement Cartridge Lactate (250) tests Part Number: 10491447 Product Usage: The RAPIDPoint 500 system is designed for professional use in a point-of-care or laboratory environment. This system tests blood gases, electrolytes, metabolites, total hemoglobin, and hemoglobin derivatives in arterial, venous, and capillary whole blood samples. The following parameters are tested: pH, pC02, p02, Na+, K+, Ca++, Cl-, glucose, lactate, tHb, F02Hb, FCHb, FMetHb, FHHb, nBili

  RAPIDPoint 500 measurement cartridge serial numbers 2517102517 through 2519000012, negative sodium bias on both QC and patient results