ABSTRACT
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Subject(s)
Male , Adult , Humans , Ethoxyquin/adverse effects , Drug Hypersensitivity/diagnosis , Antioxidants/adverse effects , Environmental Illness/diagnosis , Skin TestsABSTRACT
The authors present an overview of the presence of residues from veterinary medicinal products, growth-promoting agents and performance enhancers in food-producing animals, as a result of administering these substances--legally or illegally--on farms. The current situation in the European Union (EU) is represented by an analysis of the 2004 results from the national residue monitoring plans of EU Member States. Aspects of ante-mortem and postmortem inspection are also considered, as well as the practical challenges facing veterinary inspectors attempting to uncover illegal uses and prevent public health risks. Substances which are considered illegal because their risks have not yet been assessed, such as those employed in minority species or for minor uses, are also discussed.
Subject(s)
Animal Welfare , Drug Residues/analysis , Food Contamination/analysis , Legislation, Food , Meat/standards , Animals , Consumer Product Safety , Drug Residues/adverse effects , European Union , Food Contamination/prevention & control , Humans , Veterinary Medicine/standardsSubject(s)
Chemistry, Clinical/standards , Models, Biological , Chemistry, Clinical/methods , HumansABSTRACT
We present a model describing the rotation of the cardiac vector as a possible mechanism resulting in the presence of respiratory information in the ECG. The way in which this information is revealed is analyzed and the predictions subjected to qualitative experimental assessment via spectral analysis. The results show that respiratory frequencies occur in the ECG spectrum due to heart movement. By measuring on a patient wearing a pacemaker and ventilated to control respiratory rate we show that even in the absence of respiratory sinus arrhythmia (RSA) there is a baseband information in the ECG spectrum, attributable neither to electrode artifacts nor to emg, and sidebands from the respiratory cycle.
