How to choose a patient monitor for each department
18 August 2026
A patient monitor for the operating theatre looks much like one for the ICU, an ambulance or a general ward. The parameters differ, though. So do the screen and the power supply, and the alarm setup most of all. A wrong configuration costs you twice: first you pay for modules the department never uses, then you buy what it can't work without. This guide goes department by department: which parameters you really need, which guidelines to lean on when writing the specification, and how to choose a patient monitor whose alarms help nurses instead of wearing them out.
The basic set, and a standard for each parameter
Most multiparameter monitors measure ECG with heart rate, SpO2, non-invasive blood pressure, respiratory rate plus temperature out of the box. Capnography (EtCO2), invasive pressures, anaesthetic gas analysis and depth of anaesthesia come as modules or in specialised models.
The monitor as a whole is tested against IEC 80601-2-49:2018 with its 2024 amendment, which covers multifunction monitors for hospitals, emergency medical services and home care. Individual channels have their own parts of the 60601 family. ECG monitoring falls under IEC 60601-2-27, pulse oximeters under ISO 80601-2-61 (a new edition came out in 2026), automated blood pressure under IEC 80601-2-30, invasive pressure under IEC 60601-2-34:2024. Respiratory gas monitors (capnographs, gas analysers) follow ISO 80601-2-55. In a tender it helps to name the standard for each module, not just write "EtCO2 measurement".
Pulse oximetry has a catch buyers should know about. The FDA lists factors that affect reading accuracy: poor blood flow, skin thickness, skin temperature, tobacco use, nail polish. It is also studying the effect of skin pigmentation, and in January 2025 it issued draft guidance on testing medical pulse oximeters. The practical point is simple. SpO2 sensors must match the patient's age and weight, and a stock of original sensors belongs in the quote from day one.
Patient monitors by department: which parameters you need
| Department | Minimum | Often added | What to look at |
|---|---|---|---|
| Operating theatre | ECG, SpO2, NIBP, EtCO2, temperature | Invasive pressure, gas analysis, depth of anaesthesia | Immunity to electrosurgical interference, NIBP interval |
| Recovery | ECG, SpO2, NIBP | EtCO2 after sedation, temperature | Trends, data carried over from theatre |
| ICU | ECG, SpO2, NIBP, temperature, respiration | Two invasive pressures, EtCO2 | Central station, archive, modularity |
| Transport | ECG, SpO2, NIBP, EtCO2 if intubated, temperature | Invasive pressure | Battery, weight, mounting, visible alarms |
| Emergency department | ECG, SpO2, NIBP | EtCO2, 12-lead ECG | Fast start-up, mobility |
| General ward | SpO2, NIBP, ECG | Temperature | Ease of use, network to the nurses' station |
The table draws on the guidelines discussed below and on typical department requests. The head of department signs off the final list, because every hospital's patient mix is its own.
Operating theatre and recovery
The clearest monitoring requirements during anaesthesia are in the American Society of Anesthesiologists (ASA) standard, last amended on 15 October 2025. During general anaesthesia an oxygen analyser measures oxygen in the breathing system and oxygenation is assessed by pulse oximetry, with the variable pitch pulse tone and the low threshold alarm audible to the team. End-tidal CO2 is analysed continually between intubation and extubation by capnography or capnometry. The ECG is displayed continuously, and blood pressure with heart rate are checked at least every five minutes. Temperature is monitored when changes are intended, anticipated or suspected.
The Association of Anaesthetists' 2021 recommendations added new sections on capnography and sedation, one on regional anaesthesia too, and updated the indications for processed EEG and neuromuscular monitoring. Whether you need a depth-of-anaesthesia module is your anaesthetists' call, but it's easier to include at the start than to retrofit. The Finer catalogue has such models: the G9N clinical monitor, the G9L with four depth-of-anaesthesia indices, and the G9D with the CSI, EMG, BS, SQI indices. If the theatre runs an electrosurgical unit, ask to see the monitor's ECG while the coagulator is on. Interference shows on the trace straight away.
ICU and cardiac arrest
An ICU monitor runs around the clock for weeks, so modularity matters here, as do the number of waveforms on screen, trends, archive depth. Two invasive pressure channels usually cover an arterial line and central venous pressure. Every ventilated patient needs capnography.
During CPR the capnograph becomes one of the key devices. Ukraine's Ministry of Health standard of care on adult CPR, approved by order No. 1259 of 18 July 2024, lists capnography as desirable for confirming tracheal tube position and monitoring CPR quality. The European Resuscitation Council 2025 guidelines go further: a sustained EtCO2 trace must be used to exclude oesophageal intubation, and capnography is used to monitor the quality of chest compressions. So a patient monitor with a CO2 sensor, or a monitor-defibrillator, in the resuscitation area should be able to measure EtCO2, at least through a module you plug in when needed.
Transport and the emergency department
For transfers, the most detailed requirements come from the UK Intensive Care Society (ICS) 2019 guidance. Minimum monitoring in transit is continuous observation, ECG, non-invasive blood pressure, SpO2, temperature, plus EtCO2 in intubated patients, where capnography is mandatory. The guidance warns that non-invasive pressure in a moving vehicle suffers from motion artefact and drains the battery, so an invasive arterial line is normally used. According to ICS, the transport monitor itself should have a clear illuminated display showing ECG, SpO2, non-invasive pressure, two invasive pressures, EtCO2, temperature. Its alarms must be visible as well as audible, because ambulances are noisy.
For these jobs the catalogue has the F1 series, which works as a transport or bedside monitor with 12-lead ECG, the F series for emergency care with 13.3 to 18.5 inch screens, the DTR8 portable monitor, and the compact XH-30 series showing EtCO2 and SpO2 on a 5 inch display. If the monitor travels with a ventilated patient, match it to the transport unit from our ventilators so both fit the vehicle's mounts and power.
Central station and alarm fatigue
Most staff complaints are about alarms, not measurement accuracy. In a 2014 study by Drew and colleagues, every monitor signal from 461 adult ICU patients was recorded over 31 days. That came to 2,558,760 alarms, with 187 audible alarms per bed per day on average. Of 12,671 arrhythmia alarms annotated by nurse scientists, 88.8% were false positives. Causes included poor alarm settings and persistent atrial fibrillation, as well as low QRS amplitude in some leads. A 2013 review by Sendelbach and Funk puts the share of false clinical alarms at 72% to 99%.
What to do about it at the procurement stage:
- ask for default alarm profiles for each department and check who is allowed to change them;
- see whether the monitor analyses arrhythmia across several ECG leads at once;
- check whether alarm delays for SpO2 and the ST segment can be configured;
- require the alarm system to comply with IEC 60601-1-8 as amended in 2012 and 2020.
A central station brings a ward's alarms and trends to the nurses' station. The catalogue includes a central monitoring station for 64 beds with a 72-hour archive, the 2800 station for 8 to 32 monitors over wired or wireless links, and the DS-1700 and DS-8900 stations for DS-series bedside monitors. Bedside units and the station are best bought as one system, or some data may not get through.
What to prepare before talking to a supplier
To buy a patient monitor with no idle modules and no gaps, gather this before you call:
- The list of departments with bed numbers, plus transport monitors separately.
- Parameters for each department from the table above, marked "required" or "desirable".
- Patient groups (adults, children, neonates) so cuffs and sensors fit.
- Whether you need a central station, how many nurses' stations, and whether the hospital information system should receive data.
- The monitors, ventilators or defibrillators already in use, so that cables and accessories match.
- Annual consumables: ECG electrodes, SpO2 sensors, capnography lines, cuffs.
For spot checks there are separate pulse oximeters, and for 12-lead recordings, electrocardiographs. If you're equipping a whole department, see our turnkey solutions. Finer's doctors and engineers will help build the configuration and the specification, then deliver and commission the monitors with the central station and train your staff. Call 0 800 334 585 or use the form on the contacts page.
