Expired gas monitoring by mass spectrometry in a respiratory intensive care unit

  title={Expired gas monitoring by mass spectrometry in a respiratory intensive care unit},
  author={Jeffrey B. Riker and Ben Haberman},
  journal={Critical Care Medicine},
The application of a medical mass spectrometer for the monitoring of respired gases in the respiratory intensive care unit of a community hospital is reviewed. This monitoring system is routinely used with intubated patients for periodic monitoring of end-tidal co2 tensions (PETCO2), FIO2, and PETO2 dead space to tidal volume ratios, and the determination of AaDO2; the value of these measurements is discussed. It is especially useful for continuous monitoring at critical points in the patient's… 

Respiratory monitoring during mechanical ventilation.

  • M. Tobin
  • Medicine
    Critical care clinics
  • 1990

A Distributed Microprocessor Respiratory Intensive Care Monitoring System with Mass Spectrometer, Proximal Flowmeter, and Airway Pressure Transducer

Pressure monitoring at the proximal airway has been relatively easy — a number of ventilators feature continuous pressure monitoring and a variety of devices are available for airway pressure monitoring with low and/or high pressure alarms.

Capnography in Critical Care Medicine

End-tidal CO2 measurements as a reflection of arterial CO2 tension in critically ill patients with respiratory or cardiovascular problems is limited, but it is still useful as a noninvasive monitor to alert clinicians of potential changes in a patient's cardiopulmonary condition.

Breath-by-Breath End-Tidal Carbon Dioxide Analysis for Patients on Intermittent Mandatory Ventilation

Manufacturers of both mass spectrometers and infra-red analysers for measuring PetCO2 are marketing their systems for long-term, non-invasive assessment of the PaCO2.

Continuous noninvasive blood gas estimation in critically ill pediatric patients with respiratory failure

A transparent and novel blood gas estimation model to provide continuous monitoring of blood pH and arterial CO2 in between gaps of blood draws, using only readily available noninvasive data sources in ventilated patients is developed.

Pulse oximetry and capnography in intensive and transitional care units.

The basic theory of operation, performance, and limitations of pulse oximetry and capnography are described and other instruments-such as transcutaneous oxygen and carbon dioxide probes, as well as tissue oxygen monitors-are available, but they have not yet found wide acceptance and will not be discussed here.

End-tidal carbon dioxide as a measure of arterial carbon dioxide during intermittent mandatory ventilation

Monitoring the maximalPetCO2, independent of breathing pattern, provides a clinically useful indicator of PaCO2 in postcardiotomy patients receiving intermittent mandatory ventilation.

A Nasal Catheter for the Measurement of End-Tidal Carbon Dioxide in Spontaneously Breathing Patients: A Preliminary Evaluation

The results suggest that a balloon-tipped nasal catheter can provide a simple, easy, and reliable method for PETCO2 measurement in nontracheally intubated, spontaneously breathing patients.

Capnometry for continuous postoperative monitoring of nonintubated, spontaneously breathing patients

It is concluded that this form of capnometry is well suited for continuous, noninvasive monitoring of respiration in nonintubated, spontaneously breathing patients.