Appropriate Use of Oxygen Delivery Devices

the use of appropriate madm model for ranking the vendors of mci equipments using fuzzy approach

abstract nowadays, the science of decision making has been paid to more attention due to the complexity of the problems of suppliers selection. as known, one of the efficient tools in economic and human resources development is the extension of communication networks in developing countries. so, the proper selection of suppliers of tc equipments is of concern very much. in this study, a ...

Geographic variation in the appropriate use of cesarean delivery.

There is enormous geographic variation in the use of cesarean delivery: For births over 2,500 grams, adjusted cesarean rates vary fourfold between low- and high-use areas. Even for births under 2,500 grams, high-use counties have rates that are double those of low-use ones. Higher cesarean rates are only partially explained by patient characteristics but are greatly influenced by nonmedical fac...

Use of jet mixing devices with an oxygen concentrator.

Jet mixing devices ("Venturi" devices) can be used in conjunction with domiciliary oxygen concentrators and provide delivered oxygen concentrations similar to those obtained with medical oxygen, though with the devices delivering higher concentrations (above 30% oxygen) the total flow is substantially reduced. A jet mixing device driven by a domiciliary concentrator would be valuable in various...

The Hemodynamic Effects of Drugs on Myocardial Oxygen Use

The circulatory responses to high equinalgesic doses of morphine are compared with those of pethidin. The decrease in mean arterial blood pressure in case of morphine was 28p.c., with a paralleled and identical de­crease in total peripheral resistance and no negative inotropic effects.  Pethidine decreased blood pressure 54p.c., as a result of peripheral vasodilation of 46p.c. and a sharp drop...

Appropriate Use Criteria.