Z-1548-2026Class I

Owner's Booklets and Instructions for Use that are used with the following blood glucose measuring devices...

Name: Z-1548-2026 Owner's Booklets and Instructions for Use that are used with the following blood glucose measuring devices...
Creator: Trividia Health, Inc.
Published: 2026-02-06
License: https://open.fda.gov/license/

Trividia Health, Inc. / initiated 2026-02-06 / Open, Classified / root cause: software

FDA source

Trividia Health, Inc. began a recall of Owner's Booklets and Instructions for Use that are used with the following blood glucose measuring devices. Description/Item: Walgreens TRUE METRIX GO... on 2026-02-06. FDA classified it as Class I and gives the reason as "The system labeling (user manual and online labeling) did not provide adequate directions for lay users to act on the E-5 error code. The error code description and recommended actions for the E-5 error code in the...". As of 2026-09-10, the recall status on record is Open, Classified, and MDM tags the root cause as software.

Recall record

Recall number: Z-1548-2026
Classification: Class I
Status: Open, Classified
Initiated: 2026-02-06
Posted: 2026-03-12
Recalling firm: Trividia Health, Inc.
Product: Owner's Booklets and Instructions for Use that are used with the following blood glucose measuring devices. Description/Item: Walgreens TRUE METRIX GO Kit/RF4001-01BK, CVS TRUE METRIX GO Kit/RF4007-01, Meijer TRUE METRIX GO Kit/RF4019-01, Fred's Phamarcy TRUE METRIX GO Kit/RF4023-01, HEB TRUE METRIX GO Kit/RF4031-01, Hyvee TRUE METRIX GO Kit/RF4048-01, Rite Aid TRUE METRIX GO Kit/RF4066-01, TopCo TRUE METRIX GO Kit/RF4209-01, TRUE METRIX GO Kit/RF4H01-01BK, TRUE METRIX GO NFRS Meter Only/RF4H01-40, TRUE METRIX GO Kit (Jamaica - mmol/L)/RF4i29-11BK, TRUE METRIX GO Kit (Australia - mmol/L)/RF4i81-11BK, TRUE METRIX GO Kit (United Kingdom - mmol/L)/RF4i82-11BK, TRUE METRIX GO Starter Kit (United Kingdom - mmol/L)/RF4i82-12BK
Product code: NBW System, Test, Blood Glucose, Over The Counter
Reason for recall: The system labeling (user manual and online labeling) did not provide adequate directions for lay users to act on the E-5 error code. The error code description and recommended actions for the E-5 error code in the labeling do not: (a) clearly emphasize that an E-5 error code could represent a very high blood glucose level, and (b) prominently convey the appropriate immediate actions, such as contacting a healthcare professional. This could lead to a delay in treatment if the user does not seek medical attention immediately when receiving an E-5 error code and experiencing symptoms of high glucose.
Root cause tag: software
FDA root cause: Software design
Action: On 2/6/2026, press was issued and correction notices were emailed to customers. E-5 Error Code in the Messages section of the Owner's Booklets/System Instructions for Use emphasizes that users must seek medical attention immediately if they receive an E-5 error code and are experiencing symptoms of high glucose. Customers: notify your customers immediately of the correction and to include the letter in their notification, and to ask that they notify their customers or facilities if they have further distributed the Products. Retail pharmacies: post the notice in areas where the Products are sold to notify patients. Multiple Patient Facilities: post the notice in areas where the Products are stored to notify personnel. People with Diabetes are asked to follow the updated E-5 error code instructions Visit www.trividiahealth.com for updated Owner's Booklets and help resources. Complete and return the acknowledgement form via email to [email protected] Firm Customer Care Department: 1-888-835-2723, [email protected] or visit www.trividiahealth.com/E-5productnotice , which has links to Owner's Booklets, correction notice, and press. On 5/5/2026, updated correction notices were mailed to customers informing them of the following: For people with diabetes, if possible, consider transitioning to an alternative method of testing your blood glucose. People with Diabetes who rely on intensive insulin therapy, sulfonylureas, or glucose monitoring due to frequent hypo- or hyperglycemia events should consider transitioning to an alternative testing method until the updated devices with updated software becomes available. Firm will notify users when the upgrade program becomes available. The firm asked customers to handle dissemination of the updated notice and completion/return of the acknowledgement form as stated above. Affected serial number search tool is located at www.trividiahealth.com/E-5productnotice
Quantity in commerce: 1,407,465
Distribution: Worldwide distribution - US Nationwide including Puerto Rico and the countries of Mexico, United Kingdom, Jamaica, Trinidad & Tobago, and Australia.
Product codes and lots: Device Item/UDI-DI: RF4001-01BK/311917178691, RF4007-01/50428560402, RF4019-01/708820721098, RF4023-01/21292009335, RF4031-01/41220136131, RF4048-01/75450843576, RF4066-01/11822002783, RF4209-01/36800234567, RF4H01-01BK/21292006112, RF4H01-40/21292009793. International: RF4i29-11BK/N/A, RF4i81-11BK/N/A, RF4i82-11BK/21292012229, RF4i82-12BK/21292009984. Owner's Booklet or IFU Description/Part and Revision: TRUE METRIX GO Owner's Booklet/ RF4TVH03 Rev 57 and prior, TRUE METRIX GO Owner's Booklet (English)/RF4TVH35 Rev 51 and prior, TRUE METRIX GO Owner's Booklet (Spanish)/RF4TVH35S Rev 51 and prior, TRUE METRIX GO Blood Glucose Monitoring System IFU Trividia House Brand/ RF4ITV16 Rev 55 and prior, TRUE METRIX GO System Instructions for Use (IFU) for Trividia Health UK Limited/ RF4UKT16 Rev 56 and prior, Trividia Health LATAM- TRUE METRIX GO System IFU/ RF4LAT16 Rev 51 and prior, TRUE METRIX GO System Instructions for Use (IFU) for Trividia Health Australia/ RF4AUT16 Rev 57 and prior. Device serial numbers: Prefix "F" followed by an eight-digit numeric sequence.

Enforcement reports

One row per recalled product line

FDA enforcement reports joined to recall event Z-1548-2026
Recall number	Class	Status	Voluntary or mandated	Report date	Classified
Z-1545-2026	Class I	Ongoing	Voluntary: Firm initiated	2026-03-18	2026-03-12
Z-1546-2026	Class I	Ongoing	Voluntary: Firm initiated	2026-03-18	2026-03-12
Z-1547-2026	Class I	Ongoing	Voluntary: Firm initiated	2026-03-18	2026-03-12
Z-1548-2026	Class I	Ongoing	Voluntary: Firm initiated	2026-03-18	2026-03-12

Product code NBW

K143548Class IITRUE METRIX GO Self Monitoring Blood Glucose SystemTrividia Health, Inc. / cleared 2016-04-01

MDM coverage of this record lists here, newest first.

About this record

Sourced from the FDA device recall database and the FDA enforcement reports, both ingested from openFDA. The recall record supplies the product, the reason and the product code; the enforcement report supplies the classification. The two datasets are exported by FDA on different days, and the date above is the older of the two, so nothing on this page is newer than it says.

MDM adds the root cause tag, derived from FDA’s own root cause text, and the cross-links to the product code, the clearances named on the record and MDM coverage. Where a recall has not been joined to an enforcement report, no classification is shown.

Data as of 2026-09-30, the FDA export date for this dataset. Page last changed 2026-09-05. View this recall on fda.gov (opens on fda.gov)