NIVA and RIVA-RI are proprietary venous waveform technologies from VoluMetrix, representing a major innovation in vital monitoring technology. We look forward to expanding venous waveform analysis to include RIVA-RI, which has the potential to aid in triage of COVID-19 patients as well as monitor other pulmonary conditions.вЂќ вЂњAt VoluMetrix, we saw the potential to expand our non-invasive monitoring with our established NIVA technology to develop clinically important information about the respiratory condition of COVID-19 patients, and weвЂ™re pleased to see that this study supports venous waveformвЂ™s potential role in triaging hospitalized COVID-19 patients. вЂњCovid-19 has pushed every innovator in the med-tech fields to enhance care and improve outcomes of this disease,вЂќ said Kyle Hocking, Ph.D., President & CEO of VoluMetrix. The studyвЂ™s authors concluded, вЂњWith the increasing need for efficient and correct triage, RIVA monitoring could aid clinicians in caring for patients both at home and at the hospital and potentially prevent unnecessary hospitalizations.вЂќ The RIVA-RI for those 34 patients was significantly higher than that of healthy controls. Among 45 patients analyzed, 34 went on to require supplemental oxygen.

Using venous waveforms obtained with the NIVA device, a respiratory non-invasive venous waveform analysis вЂ“ respiratory index (RIVA-RI) was calculated for each patient. In this study, published in Critical Care Explorations, researchers investigated volume states in hospitalized Covid-19 patients from admission to discharge using the VoluMetrix non-invasive venous waveform analysis (NIVA) device. Patients with Covid-19 present with a variety of symptoms, making triage a challenge advanced knowledge of the need for oxygen support could help support clinical decision-making. NASHVILLE, TENNESSEE, UNITED STATES, Octo/ / - VoluMetrix, a Nashville-based biotech startup dedicated to creating a new wave of solutions for vital monitoring to enhance well-being, today announced publication of an observational study at Vanderbilt University Medical Center showing that its non-invasive (wrist sensor) novel respiratory venous waveform monitoring technology had a 93% positive predictive value for correctly identifying hospitalized Covid-19 patients who would eventually require supplemental oxygen (1). This simple calculator is one method to calculate VE.Using proprietary venous waveform technology, physicians could predict which patients would need oxygen-a potentially valuable foresight in Covid-19 patients. There are many ways to perform VE test with numerous calculators available on the web. The calculations assumes the necessary modifications for ambient condition through the use of IAT and MAF.В Diesel and Turbo charged engines could result with higher than 90% efficiency if in good shape. The calculations does not apply a correction factor for Altitude, Temperature and Humidity. Knowing how the test performs in your area will help you understand the results to expect from those variables. Every test you perform will vary as the result of ambient conditions. Road testing a few vehicles to get a base line of what and how the test performs will help you with your diagnosis. It is important to learn how this test will perform in your area. When IAT reads in вЊ, the PID will have to be converted to вЏ.Д¬onverting вЊ to вЏ: (вЊ x 1.8) + 32 = вЏ IMPORTANT - the readings must be in the format belowДЄn acceptable VE range is between 75% to 90%. Enter the highest recorded Parameter Identifications (PIDs) in the calculator to the right. Your datastream reading during WOT needs to be recorded at the same timeframe as the highest RPM was reached. During a road test, perform a Wide Open Throttle (WOT) and record, with your scan tool's datastream, the highest readings during WOT of RPM, IAT and MAF. To perform a volumetric efficiency test, the engine must be at operating temperature.

Performing a volumetric efficiency test can reveal the accuracy of a vehicle's Mass Airflow Sensor (MAF) as well as potential issues with the engine and can be the key to successfully diagnosing and fixing a vehicle.

Volumetrix test