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

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.

Features & Benefits

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.

  • 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
  • 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
  • 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
  • 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
  • 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

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


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.

Technical Specifications

System Overview
Sample Size

Syringe: 95 µL
Capillary: 95 µL
Microsample mode: 50 µL

Sample Type

Whole blood
Dialysate fluid

Analysis time
Approximately 60 seconds to result
Automatic or on demand


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

Storage Capacity/Memory

Up to 250 patient test records
Up to 90 results for each level of QC

Data Export
Via integrated USB port/flash drive to PC, or direct to LIS/HIS or RAPIDComm® Data Management System
Connectivity Options

RS232, LIS1, LIS2, LIS3 protocol
Can be set up for monitoring/control and connectivity via the RAPIDComm Data Management System
Peripheral Interfaces

USB Port
Standard USB 2.0

External Barcode Reader
Standard USB 2.0
max. 85% at 32ºC non-condensing
Barometric Pressure
400-825 mmHg
Power Requirements

80 VA

100–240 V

50/60 Hz



System Dimensions

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.