Medical device display errors

46 items 2 sources

Clinician misinterpretation of unrecordably low critical values displayed on medical devices (e.g., glucose as '---↓').

Cross-Source Insight

Medical device display errors has been flagged across 2 independent accountability sources:

1 inquiry rec 45 PFD reports

This issue has been identified by multiple independent accountability bodies, suggesting it is a recurring systemic concern.

Margaret Grimsley
15 Jan 2026 · Shropshire, Telford and Wrekin
Concerns: The apparent absence or non-use of an upper alarm setting on bedside oxygen meters risks over-oxygenation, with unclear policies on its implementation or whether it is standard practice.
Response: The Trust disputes the necessity of using an upper oxygen alarm, explaining that although functionality exists, it is not used as the greatest risk is low blood oxygen, focusing instead …
Responded
Melanie Walker
17 Oct 2025 · Manchester West
Concerns: Heart monitors have a critical design flaw where disconnected leads do not continuously re-alarm after initial acknowledgement, risking unobserved and fatal cardiac events in other hospitals.
Response: The Greater Manchester ICB has reconfigured heart monitor alarms so that 'ECG leads off' alerts will visually flash and re-alarm audibly every three minutes if not reconnected, whereas previously they …
Response: Philips reset the 'ECG Leads Off' alarm at the specific hospital to its factory default medium priority. However, Philips disputes the need for wider changes to their product's default settings, …
Response: The Department noted that Philips has already issued a Field Safety Notice for its IntelliVue Patient Monitors, clarifying that alarm functions are user-reconfigurable and must be confirmed as 'alarm on'. …
Responded
Kathleen Gregory
18 Jun 2025 · Suffolk
Concerns: A paramedic misinterpreted a ReSPECT form, believing it precluded resuscitation for choking, which may be a reversible event, raising concerns about form application.
Responded
Jake Lawler
09 May 2025 · Manchester South
Concerns: Clinicians frequently misinterpret ECGs and lack clear national guidance for paediatric exercise-induced syncope. The national asthma scoring system is insufficient, leading to misdiagnosis and missed cardiac conditions in children.
Responded
Sybil Morgan-Gray
07 May 2025 · Inner North London
Concerns: Blood gas machines display unrecordably low glucose in a way that can be misinterpreted as an unanalysable sample, potentially delaying appropriate clinical response to critical patient conditions.
Responded
June Liddell
13 Jan 2025 · West Sussex, Brighton and Hove
Concerns: Critical error messages and equipment defect indicators are not documented in user instructions or known to staff. Machine maintenance procedures also fail to identify component wear and tear.
Responded
Michael Walton
04 Jul 2024 · Newcastle and North Tyneside
Concerns: Supply chain issues led to a sub-optimal cannula being used, which dislodged and contributed to the patient's death. Surgeons were restricted in their choice of appropriate medical equipment.
Responded
Ben Harrison
10 May 2024 · North Wales (East and Central)
Concerns: Oxygen cylinders with a confusing two-valve system led to delayed oxygen delivery during resuscitation. Despite repeated incidents and training, the design remains unsafe for high-pressure medical emergencies.
Responded
Thomas Wakefield
17 Apr 2024 · Cheshire
Concerns: Guidance for abdominal aortic aneurysm and acute pancreatitis lacks caution about their diagnostic overlap, risking fatal misidentification, even when imaging is advised for diagnostic uncertainty.
Responded
Lauren Smith
15 Nov 2023 · Black Country
Concerns: Paramedics failed to correctly interpret an abnormal ECG and lacked fundamental knowledge of key indicators, despite auto-diagnostic warnings. Inadequate qualitative training assessment and lack of post-incident training pose a significant patient safety risk.
Responded
Devon Turner
18 Aug 2023 · Berkshire
Concerns: Unreliable and difficult-to-use home SATS machines, coupled with inadequate parent training on specific models, created a false sense of security and failed to alert parents to critical oxygen drops.
Responded
Jade Revell
23 Mar 2023 · Derby and Derbyshire
Concerns: The SystemOne computer program risks abnormal blood test results being missed due to a minimised display, lack of a scroll feature, and inability to prominently flag out-of-range values.
Responded
Van Tuyen
22 Feb 2022 · Inner North London
Concerns: Misplaced nasogastric tubes continue to cause avoidable deaths, despite being a 'never event', with no unified national approach to prevent recurrences across NHS Trusts.
Responded
Mary Land
29 Sep 2021 · West Yorkshire (East)
Concerns: The Philips Respironics AF 541 mask uses an insecure 'push-on' connection to the ventilator, prone to detaching, especially with a filter. A more robust docking mechanism is needed to prevent inadvertent disconnections.
Responded
Diana Reay
15 Sep 2021 · Stoke-on-Trent &  North Staffordshire Coroner’s Court
Concerns: Multiple doctors misread scans, mistaking a fluid-filled cyst for a full bladder, which resulted in unnecessary and repeated catheterisations of the patient.
Overdue
Ann Geraghty
27 Aug 2021 · Birmingham and Solihull
Concerns: Cardiac monitors' alarms self-terminate upon rhythm correction, failing to alert staff to serious, self-resolving events like ventricular standstill, and the manufacturer has not provided a solution.
Responded
Chimezie Daniels
16 Jul 2021 · Inner North London
Concerns: CPAP machine alarms do not distinguish between minor leaks and critical oxygen cessation, causing confusion and delays in responding to serious patient deterioration, especially with multiple alarms.
Responded
Kishorkumar Patel and Kofi Aning
07 Jul 2021 · East London
Concerns: The non-standardised colour coding and varied types of breathing system filters create widespread confusion among ICU staff. This lack of simplification and standardisation risks incorrect filter usage and patient safety.
Responded
Andrew Cook
18 Jun 2021 · Northamptonshire
Concerns: Concerns involve potential under-reporting of PEG allergy, insufficient research into its effects, and the lack of clear labelling on medical products regarding PEG's presence, dose, and various synonyms.
Responded
Peter Hussey
19 Apr 2021 · Stoke-on-Trent & North Staffordshire Coroner’s Court
Concerns: An enteral feeding and drainage tube's product description and staff training were insufficient, leading to confusion about its reduced bore size. This caused inadequate drainage, and the product is still misleadingly promoted.
Overdue
Stephen Oakes
19 Apr 2021 · Stoke-on-Trent & North Staffordshire Coroner’s Court
Concerns: Product description for a 14Fr feeding/drainage tube was misleading due to a restrictive connector, leading to inadequate drainage. Hospital evaluation was insufficient, and staff lacked training on product changes and alternative actions.
Overdue
Don Fernandes
15 Dec 2020 · Oxfordshire
Concerns: Concerns remain about the implementation of NG tube policy changes and staff competency reassessment. Policy variations to reduce x-ray exposure led to confusion about the need for confirmation, risking tube misplacement.
Responded
Leslie Harris
09 Dec 2020 · Manchester South
Concerns: The Trust misinterpreted Public Health England guidance, exposing vulnerable patients to COVID-19 by moving them to isolation wards. Concerns remain as the unamended guidance might lead other trusts to similar unsafe practices.
Responded
Ivan O’Neill
02 Dec 2020 · East London
Concerns: Inadequate patient monitoring due to a frail, restless patient being out of sight, combined with an insufficiently sensitive dialysis alarm, delayed detection of a critical bleed.
Overdue
Susan Warby
25 Sep 2020 · Suffolk
Concerns: Indistinctive packaging for IV fluids used in arterial lines causes confusion, while medical staff's incorrect blood sampling technique from arterial lines further exacerbated errors.
Responded
Doris Clark
19 Dec 2019 · London (East)
Concerns: A hospital doctor was unaware of morphine administered by paramedics due to inconsistent unit notation (mls vs. mgs), risking opiate overdose. Lack of standardised units between services creates a significant safety concern.
Overdue
Jeanette Robinson
03 Jun 2019 · Cornwall and the Isles of Scilly
Concerns: An electronic turning device's air mattress accidentally deflated due to a dislodged power cable, with no alarm or warning system to alert the user or staff to the critical failure.
Responded
Norman Pirie
18 Jan 2019 · London Inner (North)
Concerns: A surgical cuff device was used outside manufacturer guidelines in a non-emergency procedure, increasing the risk of device failure and the need for high-mortality open surgery.
Responded
Freddie Dobinson-Evans
14 Mar 2018 · London Inner (North)
Concerns: A critical genetic test result, indicating a pathogenic mutation, was misread as normal, leading to a diagnostic error that could have significant consequences for other children.
Overdue
Donald Till
11 Jan 2018 · Stoke-on-Trent & North Staffordshire
Concerns: Unavailable medical records, inadequate equipment (missing bronchoscope part, no tilt trolley), and unutilised standard procedures (cricoid pressure, NG tubes) compromised patient care during anaesthesia.
Responded
Peter Cotter
20 Sep 2017 · Milton Keynes
Concerns: Emergency service triage software failed to register a head injury in an anticoagulant patient after a fall, risking severe complications and highlighting the need for a review of head injury recognition protocols.
Responded
Glenys Pollitt
07 Sep 2017 · Manchester (South)
Concerns: Inconsistent use of high-resolution X-ray screens and clinician confirmation bias led to missed abnormalities. There were also unclear processes for reinforcing learning and escalating patient deterioration to consultants.
Responded
Joseph De Pellergrino-Farrugia
03 Jul 2017 · North Yorkshire (West)
Concerns: The absence of safety sensors on a chair mechanism led to a crushing injury, as it failed to detect a foot's presence and prevent operation.
Overdue
James Hedge
27 Jul 2016 · South Wales Central
Concerns: Insulin pump guidance inadequately highlights misuse dangers from incorrect cartridge insertion, and patient education fails to emphasize the rapid life-threatening nature of hyperglycaemia.
Responded
Geoffrey Parry
07 Oct 2015 · Cardiff and the Vale of Glamorgan
Concerns: Critical ECG test results were unavailable pre-surgery due to systemic record management issues. An unlabelled intravenous line was accidentally disconnected, highlighting a lack of clear labelling protocols.
Responded
Dilys Jenkins
07 Oct 2015 · Cardiff and the Vale of Glamorgan
Concerns: Tracheostomy tube manufacturers may not be keeping pace with population changes, leading to tubes of potentially inappropriate length which could increase dislodgement risk.
Overdue
Brian Marks
29 Jan 2015 · Manchester (South)
Concerns: PEJ and PEG tubes are easily confused due to their similar appearance, highlighting the lack of a simple colour-coding system for differentiation.
Responded
James Fyfe
05 Jan 2015 · Berkshire
Concerns: The cot side on a trolley could remain in an unlocked position due to design and maintenance issues, which were not clearly highlighted. The MHRA failed to escalate this known hazard to other hospital trusts.
Responded
Gaenor Moore
24 Nov 2014 · Surrey
Concerns: Oxygen flow was lost due to an improperly engaged humidifier screw cap, exacerbated by the absence of an alarm on the concentrator and insufficient training regarding equipment setup.
Responded
Jackson Mitchell
27 Oct 2014 · Norfolk
Concerns: The death was caused by liver damage from parenteral nutrition extravasation, likely due to a low-lying umbilical venous catheter, highlighting risks associated with currently acceptable UVC placement practices.
Overdue
Marjorie Phillips
18 Sep 2014 · Manchester (South)
Concerns: The patient's fall from a hoist was attributed to the sling's tendency to "bagging" at the sides, creating a fall risk if the patient shifted their weight.
Responded
Archie Hames
05 Jun 2014 · Surrey
Concerns: The combined use of a specific tracheostomy tube and a particular Velcro strap attachment compromised the tube's integrity, likely causing detachment and posing risks with similar devices.
Overdue
Arthur Brockett-Deakins
25 Feb 2014 · London (Inner South)
Concerns: Midwives failed to timely escalate abnormal CTG results due to misapplication of guidelines and inadequate training. Concerns also arose about CTG machines potentially misinterpreting maternal heart rate as fetal heart rate.
Responded
Kenneth Smalley
19 Dec 2013 · Manchester (West)
Concerns: A malfunctioning operating table and emergency stop, potentially linked to a damaged, improperly positioned handset, highlight inadequate pre-operation checks and a lack of training or hospital-wide review for similar equipment.
Response: Wrightington Wigan and Leigh NHS Foundation Trust has inspected all operating tables, carried out repairs, and implemented a more robust training system for theatre staff. Visual checks of operating table …
Overdue
Sangeerth Girirathan
· Milton Keynes
Concerns: Alarms on ICU monitors were disengaged, preventing staff from being alerted to critical patient deterioration, which resulted in a cardiac arrest.
Pending