Continuous intravascular blood gas monitoring: development, current techniques, and clinical use of a commercial device

This review focuses on the development, current techniques, and clinical use of continuous intravascular blood gas monitoring (CIBM) devices in anaesthesia and intensive care. The operating principles, range of application, performance, limitations, costs, and impact on patient treatment and outcome, are discussed. Studies of early and currently available CIBM devices were analysed. At present, the Paratrend 7+® (PT7+®) for adults and Neotrend™ (NT™) for newborns are the only commercially available CIBM systems. The PT7+® contains three optical sensors to measure Po2, Pco2 and pH, as well as a thermocouple to measure temperature. The NT™ is a modification of the PT7+® to continuously monitor Po2, Pco2, pH and temperature in newborns. Under laboratory conditions, good performance over a wide range of blood gas values was observed with the Paratrend 7® (PT7®). Performance in the clinical setting was not as satisfactory, especially for Po2 values. However, the performance and accuracy of CIBM devices appear to be sufficient for clinical use and they are being used clinically in selected patient groups. Several factors affecting the performance of CIBM are considered. Br J Anaesth 2003: 91; 397-40

Continuous intravascular blood gas monitoring: development, current techniques, and clinical use of a commercial device

This review focuses on the development, current techniques, and clinical use of continuous intravascular blood gas monitoring (CIBM) devices in anaesthesia and intensive care. The operating principles, range of application, performance, limitations, costs, and impact on patient treatment and outcome, are discussed. Studies of early and currently available CIBM devices were analysed. At present, the Paratrend 7+® (PT7+®) for adults and Neotrend™ (NT™) for newborns are the only commercially available CIBM systems. The PT7+® contains three optical sensors to measure Po2, Pco2 and pH, as well as a thermocouple to measure temperature. The NT™ is a modification of the PT7+® to continuously monitor Po2, Pco2, pH and temperature in newborns. Under laboratory conditions, good performance over a wide range of blood gas values was observed with the Paratrend 7® (PT7®). Performance in the clinical setting was not as satisfactory, especially for Po2 values. However, the performance and accuracy of CIBM devices appear to be sufficient for clinical use and they are being used clinically in selected patient groups. Several factors affecting the performance of CIBM are considered. Br J Anaesth 2003: 91; 397-40

Microcomputer-controlled polarographic instrumentation and its use in the determination of stability constants of crown ether complexes

A computer-controlled polarographic system is described, based on a commercially available polarograph interfaced to a microcomputer. Experiments are controlled and monitored entirely from software, including automatic evaluation of the Tast polarograms and addition of solutions to the polarographic cell from a motor burette. The program was written in FORTH, a computer language especially apt for laboratory automation. The system is used in the determination of stability constants of crown ether complexes

Polarographic determination of malononitrile

A procedure is proposed for the determination of malononitrile by differential pulse polarography in methanolic 0.1M tetraethylammonium iodide/0.001M tetramethylammonium hydroxide as the supporting electrolyte. In this medium malononitrile is chemically converted into an electroactive species. With close control of timing of the steps in the procedure the error of the method is ±1.5% in the concentration range 0.0001–0.001M. Acrylonitrile, benzonitrile and succinic acid dinitrile do not interfere

Pesticide Use and Pest Management Practices for Major Crops in North Dakota - 2000

ER-79. This report summarizes the information on pesticide use as reported by the farmers surveyed. The data do not imply endorsement of any particular product or practice. Also, some responses may have misreported use of pesticides due to similar sounding chemical or trade names. In some cases, pesticides are approved for use before planting or after harvest, but not to a crop. The mention of an unregistered pesticide applied to a crop does not imply applications are legal or advocated by the authors. It is of the utmost importance that pesticide users READ, UNDERSTAND, and FOLLOW all label directions and precautions

Report of Responses to the 2004, 2006, and 2008 Physician Assistant Re-Licensure Surveys

The Indiana State Department of Health and the Indiana Professional Licensing Agency developed a collaborative partnership to collect data through the licensing process to better understand the health professions workforce within the state. Beginning in 2004, physician assistants were asked to participate in voluntary surveys when renewing their licenses ever y two years. The purpose of this report is to summarize the participants’ responses to the survey items. The responses provide a detailed description of the physician assistant workforce in the state of Indiana to aid in the development of policies and programs to recruit and retain these health professionals where they are needed in Indiana

Review of CGIAR Research Programs Governance and Management: Final Report

The Review of CGIAR Research Program Governance and Management was requested by the CGIAR Consortium and approved by the Fund Council in November 2012. The Independent Evaluation Arrangement (IEA) is responsible for the review, which was carried out between June 2013 and January 2014. At the time the review was initiated, Consortium Research Programs (CRP) governance and management structures were in place or approved for each CRP. This enabled the review to “take stock of experience so far, identify issues and provide lessons from existing CRPs and elsewhere which can be applicable to other CRPs” (Annex 1, Review Terms of Reference)