Introducing the new generation of Metabolic Monitors for Indirect Calorimetry in Clinical and Critical Care Practice

"In critically ill mechanically ventilated patients, EE should be determined by using indirect calorimetry"
ESPEN guidelines on clinical nutrition in the intensive care unit. Singer P, et al. Clinical Nutrition. 2018

Introduced by COSMED, worldwide leader in the design of metabolic systems for clinical and human performance applications, Q-NRG is the first Indirect Calorimeter specifically intended for the measurement of Resting Energy Expenditure (REE) in patients who are mechanically ventilated or spontaneously breathing and for healthy subjects. Indirect calorimetry remains the Gold Standard in measuring energy expenditure in clinical settings, proven to have enormous advantages compared to Predictive Equations1. In fact, this measuring technology provides an individual and dynamic metabolic assessment based on the actual physical status of the subject rather than estimating it on anthropometric data. Q-NRG is a unique product, the result of COSMED’s collaboration with world-class institutes in the field of nutrition support in intensive care units. Product concept and specifications have been designed together with the ICALIC Trial study group2. This collaboration made possible the development of an accurate metabolic system simple to use and at the same time able to solve all typical pitfalls of Indirect Calorimetry technology.


Individual Metabolic Assessment Q-NRG uses the Gold Standard Indirect Calorimetry technique to measure metabolic parameters. The technique itself guarantees that the results reflect the metabolic alterations during illness and repeated measurements may correspond with disease progression or resolution4. QNRG is the ultimate tool to develop individual nutrition support plans and optimize them to prevent over/underfeeding, to reduce length of stay and, ultimately, to decrease costs in ICU.

Indirect Calorimetry, a Gold Standard Q-NRG
is the result of more than 30 years of experience in the design of metabolic systems. The new calorimeter has been validated in-vitro by international multicentre study showing the greatest accuracy with excellent agreement vs. mass spectrometer measurements5,6.

Quick to operate, clean and maintain Q-NRG has been designed to reduce operations and measurement time. System does not require warm-up time nor user-assisted calibrations, all operations can be performed with a few taps on the screen and cleaning procedures are simplified thanks to rounded surfaces and single-use accessories.

Designed for Clinical Practice Q-NRG
usability has been designed according to best clinical practice. An intuitive workflow supports the user through all operations with main instructions prompted along the procedures and test information always accessible. Designed to be portable, the device can be easily transported between rooms.

Latest Technologies in a Compact Device Q-NRG is a compact, lightweight, battery operating device. The 10” inches LCD touchscreen simplify access to all operations. Bluetooth, USB, RS-232 and LAN interfaces allow to connect the system to any hub (PC, printers, etc.).

Affordable Q-NRG has been designed to compete with conventional metabolic system, at a fraction of the cost.

One tool for many applications. Q-NRG provides all the flexibility for a variety of clinical settings, assessing different patient's conditions (mechanically ventilated or spontaneously breathing) and with different techniques (Canopy Hood and/or face masks), from adults to pediatric starting from 10 kg.

Standalone or PC based user mode. Q-NRG can be operated either via the integrated LCD touchscreen or controlled from a computer via OMNIA PC software (optional), with data transfer done wireless through Bluetooth® or USB interfaces.

  •     Resting Energy Expenditure in ventilated patients or spontaneously breathing subjects
  •     Full Metabolic Assessment (REE, VO2, VCO2, VE, RQ etc.)
  •     Compact, lightweight, battery and main operated
  •     Test subjects with Ventilator, Canopy or Face Mask
  •     Immediate, simple set-up and system operation
  •     Designed for easy cleaning and maintenance
  •     No daily gas calibration required

Vent (Mechanically assisted patients)

  • Measurement of oxygen consumption (VO2), carbon dioxide production (VCO2), together with other ventilatory parameters, and metabolism substrate utilization (%FAT, %PRO, %CHO).
  • Ventilated patients (>age 10).
  • Disposable PNT flowmeter (Flow-REE) inserted at the patient’s circuit
  • All parts are single patient, no need for cleaning and disinfecting
  • Independent from type of ventilator in use

Canopy (Spontaneously breathing subjects)

  • Measurement of oxygen consumption (VO2), carbon dioxide production (VCO2), together with other ventilatory parameters, and metabolism substrate utilization (%FAT, %PRO, %CHO).
  • Spontaneously breathing subjects (>age 6).
  • Dilution technique using bubble canopy hood (available either adult or pediatric).
  • Consumables: Canopy veil, antibacterial filters and corrugated tube
  • Integrated canopy blower pump inside the unit (selectable flow rate with Q-NRG monitor).

Mask (Spontaneously breathing subjects)

  • Measurement of oxygen consumption (VO2), carbon dioxide production (VCO2), together with other ventilatory parameters, and metabolism substrate utilization (%FAT, %PRO, %CHO).
  • Spontaneously breathing subjects (>age 6).
  • External multi-use turbine flowmeter
  • Multi-use silicone face masks with headgear for comfortable leak-free measurements
  • 5 mask sizes (3 Adult and 2 Pediatric)
  • Easy to clean and sterilize

Perfect solution for quick, safe and versatile tests in the ICU department

    One gas cylinder holder
    Basket for accessories and consumables
    Handle for agile movement in small spaces
    Bed rail or pole clamp for monitor attachment
    High stability and perfect balance
    Medical grade

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