Roche Diagnostics Operations, Inc. Cobas b 221 (versions 5 and 6) Blood Gas and Electrolytes Analyzer Recall
Class II: A situation in which use of, or exposure to, a violative product may cause temporary or medically reversible adverse health consequences or where the probability of serious adverse health consequences is remote
Class II recall indicates potential for temporary health effects.
This AI-generated summary is provided for general informational purposes only and is derived from publicly available recall notices. It supplements but does not replace official agency classifications or safety instructions.
Check Your Product
According to the U.S. Food and Drug Administration (FDA)
Product
Cobas b 221 (versions 5 and 6) Blood Gas and Electrolytes Analyzer
Brand
Roche Diagnostics Operations, Inc.
Lot Codes / Batch Numbers
Model/Catalog/Part #: 1. cobas b221 <6>=Roche OMNI S6 SYSTEM, and 2. 03337154692 - cobas b 221<6>=Roche OMNI S6 SYSTEM CU Potassium - CEM, Calcium - JFP, Sodium - JGS, Chloride - CGZ, Blood Gases (PCO2, PO2) and pH - CHL, Hemoglobin -GKR, Hematocrit - GKF, Oxygen saturation, Carboxyhemoglobin - GHS, Oxyhemoglobin - GGZ, Methemoglobin - KHG, Deoxyhemoglobin - GKA, Lactic Acid - KHP, Glucose- CGA, Urea Nitrogen - CDS.
Products Sold
Model/Catalog/Part #: 1. cobas b221 <6>=Roche OMNI S6 SYSTEM; and 2. 03337154692 - cobas b 221<6>=Roche OMNI S6 SYSTEM CU Potassium - CEM, Calcium - JFP, Sodium - JGS, Chloride - CGZ, Blood Gases (PCO2, PO2) and pH - CHL, Hemoglobin -GKR, Hematocrit - GKF, Oxygen saturation, Carboxyhemoglobin - GHS, Oxyhemoglobin - GGZ, Methemoglobin - KHG, Deoxyhemoglobin - GKA, Lactic Acid - KHP, Glucose- CGA, Urea Nitrogen - CDS.
Roche Diagnostics Operations, Inc. is recalling Cobas b 221 (versions 5 and 6) Blood Gas and Electrolytes Analyzer due to Chemical component of the F3 Fluid pack and environmental bacterial contamination causes a positive bias up to 39% at 4.1 mmol/l for the glucose measu. This is a Class I recall, indicating a high risk of serious health consequences or death. Based on FDA medical device enforcement report.
Summary derived from FDA notice
Reason for Recall
As stated by FDA
Chemical component of the F3 Fluid pack and environmental bacterial contamination causes a positive bias up to 39% at 4.1 mmol/l for the glucose measurement and 30% at 4.12 mmol/l for lactate. Urea readings are unaffected.
Recommended Action
Per FDA guidance
Healthcare providers and patients should stop using the device and contact the manufacturer for further instructions. Report problems to FDA MedWatch.
Verify this information on the official source
For complete details and official instructions, check the U.S. Food and Drug Administration (FDA) directly.
View official FDA recall noticePage updated: Jan 14, 2026