RAPIDLab® 348EX Blood Gas System
Deliver reliable and economical critical care testing in low-volume settings

RAPIDLab® 348EX Blood Gas System
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Get trusted results for critical analytes with ease, efficiency, and economy.


The RAPIDLab® 348EX Blood Gas System* is the cost-effective solution for smaller laboratories tasked with the challenge of performing fast-turnaround critical care tests. Fully-automated operation supports low-to-medium throughput on an easy-to-use analyzer that’s ready to generate accurate, on-demand results when clinicians need them, with a minimum of operator involvement.

NEW! RAPIDLab 348EX System Demonstration Video

See how to run a sample, learn about operational efficiency, and more.


Quality control materials

Quality control materials

A full range of quality control materials are available to help ensure the performance of the system.
RAPIDComm Data Management System

RAPIDComm Data Management System

Full integration of your RAPIDLab® 348EX System allows real-time monitoring of all networked Siemens analyzers for increased uptime, automated documentation, and quality control.
Partnership you can trust.

Partnership you can trust.

Siemens blood gas systems incorporate responsive on-site service, comprehensive training and clinical education support to deliver exceptional value for customers over the long-term.
Online education

Online education

Learn 24/7 with the Siemens Personalized Education Plan (PEP) – a competency-based learning system with unlimited access to multiple content libraries offering a broad spectrum of learning beyond instrumentation skills.
50 Years Blood Gas Innovation

50 Years Blood Gas Innovation

Características y beneficios

Increase productivity and operator efficiency in the low-volume laboratory

The RAPIDLab 348EX analyzer combines proven Siemens blood gas technology with a range of next-generation system enhancements designed to streamline and simplify day-to-day operations and workflow.

Fast, accurate results support critical treatment decisions

  • Actionable patient test results are available in approximately 60 seconds
  • Small sample size (50 µL–95 µL) suitable for most patients
  • Analyze whole blood and dialysate fluid
  • Whole blood results: pH, pCO2, pO2 Na+, K+, Ca++/Cl-, and hematocrit
  • Dialysate results: pH, pCO2, Na+, K+, Ca++, HCO3-, and ctCO2
  • Test and report only those parameters ordered by the clinician

Ensure data integrity and increase workflow efficiency

  • Bar-code reader, for patient/operator ID entry, can be mounted on either side and offers optional setting for continuous-on, single-handing scanning
  • Sample probe aspirates from syringes, capillaries, and QC ampules automatically, without the need for adapters
  • Automatic detection of short samples shifts analyzer into microsample mode, with no operator involvement required
  • Time-tested Ready Sensor® electrodes have a proven track record of performance and long use-life
  • Comprehensive QC materials help verify system performance
  • Automatic calibration routines and wash sequences minimize demands on operators time and attention

Easy-to-use with fast access to sensors, reagents, and waste

  • Intuitive, color, touch screen user interface features large, easy-to-read system icons that display analyzer status
  • One-touch icon selection of sampling mode - syringe, capillary, dialysis fluid, QC
  • Easy navigation to all routine functions from the Ready screen
  • Measurement chamber houses all sensors and is designed for easy access and replacement
  • All reagents are located on the front panel of the analyzer, enabling easy reagent replacement
  • Clear plastic bottles and blue-colored solutions allow at-a-glance checks of fill volumes
  • Minimal maintenance requirements further extend system uptime

Affordable, on-demand performance from a compact design

  • Economically priced – low cost of acquisition
  • Low operating costs – cost of reagents/consumables will not vary significantly, even if throughput triples from five to 15 samples/day
  • Small footprint saves valuable bench space in smaller labs and point-of-care settings

Flexible data review, reporting and storage

  • Results can be viewed on-screen, output to the onboard printer, or electronically transmitted to LIS/HIS or RAPIDComm® Data Management System
  • Convenient onboard storage of up to 250 patient test records, and up to 90 results for each level of QC
  • Print calibration and QC summaries for inspection purposes including off-line generated Levey-Jennings reports to document QC performance
  • USB port simplifies data uploads/downloads

Increase efficiency with the RAPIDComm Data Management System

When analyzers in remote, decentralized settings are supported by the RAPIDComm Data Management System, point-of-care coordinators can oversee the entire testing process from a central location.

  • Configure, monitor, and control multiple networked RAPIDLab 348EX analyzers
  • Troubleshoot analyzers, standardize test protocols, authorize and certify operators, and enforce QC checks
  • Generate customized reports for accreditation inspections
  • Help ensure testing and regulatory compliance, and improve risk management
  • Connect multiple Siemens point-of-care analyzers – including blood gas, urine chemistry, and diabetes care systems -- through a single interface to the LIS/HIS


Measurable Parameters                        Analyte

Blood Gas



Ca++ or  Cl


Calculated Parameters







BEecf, pO2(A-a)         

pO2 (a/A)



Anion Gap

Renal Dialysate

This mode permits measurement of Na+, K+, Ca++,  pCO2 and pH in bicarbonate-based or acetate-based renal dialysis fluids.


Especificaciones técnicas

System Overview 
Sample Size

Syringe: 95 µL

Capillary: 95 µL

Microsample mode: 50 µL

Sample Type

Whole blood

Dialysate fluid
Analysis timeApproximately 60 seconds to result
CalibrationAutomatic or on demand


Input Parameters



Hemoglobin:2.0–25.0 g/dL


Patient/Operator IDs:                         
Up to 16 characters (alphanumeric)
Sample location:               
Radial, brachial, femoral, cord, arterial line (with RAPIDComm® Data Management System)


Display Interface
     Intuitive, icon-based color touchscreen


Onboard Computer



Up to 250 patient test records

Up to 90 results for each level of QC
Data ExportVia integrated USB port/flash drive to PC, or direct to LIS/HIS or RAPIDComm® Data Management System


Connectivity Options
SerialRS232, LIS1, LIS2, LIS3 protocol

Can be set up for monitoring/control and connectivity via the RAPIDComm Data Management System

Peripheral Interfaces
USB PortStandard USB 2.0
External Barcode ReaderStandard USB 2.0                                


Humidity:max. 85% at 32ºC non-condensing
Barometric Pressure400-825 mmHg
Power Requirements
Rating:80 VA
Voltage:100–240 V
Frequency:50/60 Hz          
System DimensionsWidth:           
Weight :
385 mm (15.2 in.)
353 mm (13.9 in.)
382 mm (15.0 in.)
 9.4 kg (20.7 lb)

UL, CSA, IEC, EN-61010, CE Marked with full CB Scheme and all National Deviations. Complies with the IVD directive

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*Not available for sale in the U.S. Product availability varies by country.