Fatal, deadly, lethal, mortal apply to something that has caused or is capable of causing death. Fatal may refer to either the future or the past; in either case, it emphasizes inevitability and the inescapableâthe disastrous, whether death or dire misfortune: The accident was fatal. Such a mistake would be fatal. Deadly looks to the future, and suggests that which is likely to cause death (though not inevitably so): a deadly poison, disease. Like deadly, lethal looks to the future but, like many other words of Latin origin, suggests a more technical usage: a lethal dose; a gas that is lethal.
Making the world better, one answer at a time. Causes of extrasystole include alcohol, ischemia, hypoxia, and myocarditis. Extrasystole is defined as a premature beat in the heart that causes momentary arrhythmia. Causes of extrasystole include alcohol, ischemia, hypoxia, and myocarditis. Extrasystole is defined as a premature beat in the heart that causes momentary arrhythmia.
What causes UPJ obstruction? Many UPJ problems may occur before birth, as enlargement of the kidney (hydronephrosis) can be seen on a prenatal ultrasound. The stagnation of urine caused by the UPJ blockage can lead to infection. Older children may have pain related to the blockage. Sometimes the blockage can cause kidney stones to form. The obstruction is usually due to an abnormality in the development of the muscle at the UPJ. What tests are needed? Ultrasonography, computerized tomography (CT) and intravenous pyelogram (IVP) will show the hydronephrosis related to a UPJ obstruction â but may not necessarily prove that the enlargement of the system is due to blockage.