Track topics on Twitter Track topics that are important to you
Data directly comparing CO absorbents tested in identical and clinically relevant conditions are scarce or non-existent. We therefore tested and compared the efficiency of 16 different brands of Ca(OH) based CO absorbents used as loose fill or a cartridge in a refillable canister under identical low flow conditions. CO absorbents efficiency was tested by flowing 160 mL/min CO into the tip of a 2 L balloon that was ventilated with an ADU anesthesia machine (GE, Madison, WI, USA) with a tidal volume of 500 mL and a respiratory rate of 10/min while running an O/air FGF of 300 mL/min. After the 1020 mL refillable container was filled with a known volume of CO absorbent (derived from weighing the initial canister content and the product's density), the time for the inspired CO concentration (FCO) to rise to 0.5% was measured. This test was repeated 4 times for each product. Because the two SpiraLith Ca products (one with and one without indicator) are delivered as a cartridge, they had to be tested using their proprietary canister. The time (min) for FCO to reach 0.5% was normalized to 100 mL of product, and defined as the efficiency, which was compared amongst the different brands using ANOVA. Efficiency ranged from 50 to 100 min per 100 mL of product, and increased with increasing NaOH content (a catalyst), the exception being SpiraLith Ca cartridge with color indicator (performing as well as the most efficient granular products) and the SpiraLith Ca cartridge without color indicator (outperforming all others). Results indicated a spherical or bullet shape is less efficient in absorbing CO than broken fragments or cylinders, which in turn is less efficient than a hemispherical (disc) shape, which is in turn less efficient than a solid cartridge with a molded channel geometry. The efficiency of Ca(OH) based CO absorbent differs up to 100% on a volume basis. Macroscopic arrangement (cylindrical wrap with preformed channels versus granules), chemical composition (NaOH content), and granular shape all affect efficiency per volume of product. The data can be used to compare costs of the different products.
This article was published in the following journal.
Name: Journal of clinical monitoring and computing
The first aim was the development of a human blood miniature mock-loop system consisting of 2 identical extracorporeal circuits, which enable systematic head-to-head comparisons of test substances. In...
When we buy a product of a brand, we trust the brand to provide good quality and reliability. Therefore, trust plays a major role in consumer behavior. It is unclear, however, how trust in brands is p...
Male condoms are important to prevent transmission of HIV (and other STIs) and unwanted pregnancies. Research was conducted to evaluate the quality of male condoms available in the Dominican Republic ...
Atmospheric water harvesting (AWH)-producing fresh water via collecting moisture from air-enables sustainable water delivery without geographical and hydrologic limitations. However, the fundamental d...
Continuous albuterol has become the standard of care for patients in status asthmaticus. We have previously performed an in-vitro study comparing 4 different brands of continuous nebulizer...
Einstein Healthcare Network in North Philadelphia serves a predominantly underserved medical community. The investigators routinely see patients who cannot afford PDE-5 inhibitors and abso...
The purpose of this study is to demonstrate that the Diagnostic Absorbent Panty liner (AL-SENSE Amniotic Leak Test Kit), developed by Common Sense Ltd., can distinguish between wetness sen...
To assess the cardiac effects of energy drink brands in healthy volunteers
A single dose, two treatments (two cephalexin suspension brands), two sequences, cross-over design was used with a washout of 7 days between the two study periods. Treatment groups balance...
Pads made of various materials used for personal hygiene usually for absorbing URINE or FECES. They can be worn as underpants or pants liners by various age groups, from NEWBORNS to the ELDERLY. Absorbent pads can be made of fluff wood pulp and HYDROGEL absorbent covered with viscose rayon, polyester, polypropylene, or POLYETHYLENE coverstock.
Dressings comprised of a self-adhesive matrix to which hydrophilic absorbent particles are embedded. The particles consist of CELLULOSE derivatives; calcium ALGINATES; PECTINS; or GELS. The utility is based on providing a moist environment for WOUND HEALING.
Information application based on a variety of coding methods to minimize the amount of data to be stored, retrieved, or transmitted. Data compression can be applied to various forms of data, such as images and signals. It is used to reduce costs and increase efficiency in the maintenance of large volumes of data.
An assisted reproductive technique that includes the direct handling and manipulation of oocytes and sperm to achieve fertilization in vitro.
The concentration of a compound needed to reduce population growth of organisms, including eukaryotic cells, by 50% in vitro. Though often expressed to denote in vitro antibacterial activity, it is also used as a benchmark for cytotoxicity to eukaryotic cells in culture.
An anesthesiologist (US English) or anaesthetist (British English) is a physician trained in anesthesia and perioperative medicine. Anesthesiologists are physicians who provide medical care to patients in a wide variety of (usually acute) situations. ...
Asthma COPD Cystic Fibrosis Pneumonia Pulmonary Medicine Respiratory Respiratory tract infections (RTIs) are any infection of the sinuses, throat, airways or lungs. They're usually caused by viruses, but they can also ...