Myocardial Toxins

Certain solvents such as halogenated hydrocarbons, Freons, and aromatic hydrocarbons may sensitize the myocardium to the dysrhythmic effect of catecholamines. Myocardial irritability may persist for several hours following exposure. Avoidance of physical activity or sympathomimetic drugs, other than selective b 2 agonists, for the treatment of bronchospasm is warranted. Furthermore, dc countershock cannot be administered to patients soaked with flammable chemicals until decontamination has been carried out due to fire and explosion risk. Hydrofluoric acid exposures may result in cardiac dysrhythmias as a result of hypocalcemia, hypomagnesemia, or hyperkalemia. In this setting, the administration of intravenous calcium may be lifesaving.

Coping with Asthma

Coping with Asthma

If you suffer with asthma, you will no doubt be familiar with the uncomfortable sensations as your bronchial tubes begin to narrow and your muscles around them start to tighten. A sticky mucus known as phlegm begins to produce and increase within your bronchial tubes and you begin to wheeze, cough and struggle to breathe.

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