Effects of higher oxides of nitrogen on the anaesthetized dog.
نویسندگان
چکیده
The physiological derangements during and following the administration of higher oxides of nitrogen have been studied in dogs anaesthetized with pentobarbitone. The dogs were exposed to concentrations of nitric oxide or nitrogen dioxide between 0.1 and 2.0 per cent over periods between 5 and 136 minutes. Despite the inhalation of 98 per cent oxygen, death was always associated with a critical reduction in arterial oxygen content. This was caused by one or more of the following three factors: methaemoglobinaemia, low arterial Po2, and acidaemia which caused a shift of the oxyhaemoglobin dissociation curve. The reduction of arterial Po2 was caused by an outpouring of fluid into the alveoli
منابع مشابه
Modeling of Combustion and Carbon Oxides Formation in Direct Injection Diesel Engine
When looking at the effects of diesel engine exhaust on the environment, it is important to first look at the composition of the exhaust gases. Over 99.5% of the exhaust gases are a combination of nitrogen, oxygen, carbon dioxide, and water. With the exception of carbon dioxide, which contributes about 5% of the total volume, the diesel engine exhaust consists of elements which are part of...
متن کاملPhotocatalytic Removal of NOx Gas from Air by TiO2/Polymer Composite Nanofibers
Nitrogen oxides (NOx) released in atmosphere by fuels combustion lead to photochemical smog and acidic rains and have negative effects on human`s nervous system. In this research nanocomposite membranes of Poly Vinylidene Fluoride (PVDF)/ Poly Dimethylsiloxane (PDMS) and Titanium Dioxide nanoparticles (TiO2) with different weight percentage of TiO2 (0.5 and 1) for adsorption of NOx were prepare...
متن کاملStudy of tropospheric ozone concentration trend of Kermanshah by meteorological parameter and ozone precursor and OMI images
Abstract: Clean air is a necessity for human well-being and health. Air pollution is a major threat to humans and other organisms and is considered as one of the environmental challenges. Today, with the increase in air pollution, the need to know more about the causes of its occurrence has been raised. The various consequences of air pollution have made air quality monitoring and control inev...
متن کاملA Reactivity Based Emission Inventory for the South Pars and Its Implication for Ozone Pollution Control
The South Pars zone in Iran encompasses the largest gas refineries and petrochemical complexes in the world. In the South Pars zone, elevated concentrations of reactive hydrocarbons co-emitted with nitrogen oxides from industrial facilities lead to substantial ozone production downwind. To understand the role of these emissions on the ozone formation and, to formulate appropriate control st...
متن کاملChemical Sterilization by Intratesticular Injection of Eugenia Caryophyllata Essential Oil in Dog: A Histopathological Study
Objective- To study a method of chemical sterilization and its efficacy in adult male dogs. Design- Experimental study. Animals- Ten healthy adult mixed breed dogs Procedures- Eugenia caryophyllata (EC) essential oil was injected into the dorsal cranial portion of each testicle of five dogs (treatment group). The same volume of normal saline was injected in the same site of testicles in the ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- British journal of anaesthesia
دوره 39 5 شماره
صفحات -
تاریخ انتشار 1967