When a storm's maximum sustained winds reach 74 mph, it is called a hurricane. The Saffir-Simpson Hurricane Wind Scale is a 1 to 5 rating, or category, based on a hurricane's maximum sustained winds. The higher the category, the greater the hurricane's potential for property damage. Hurricanes originate in the Atlantic basin, which includes the Atlantic Ocean, Caribbean Sea, and Gulf of Mexico, the eastern North Pacific Ocean, and, less frequently, the central North Pacific Ocean.
paroxysmal supraventricular tachycardia (PSVT) a narrow QRS tachycardia that begins and ends abruptly; it may be terminated with a vagal maneuver. It has two common mechanisms, atrioventricular nodal reentry and circus movement that uses the atrioventricular node anterogradely and an accessory pathway retrogradely.
Abstracted by Gary W. Lemon. Clinical Presentation /Diagnosis. Superficial venous thrombophlebitis (SVT) is an attack of blood clots in veins that lie under the skin within the fat of the body but not in the. It is deep veinsa relatively common medical problem. It can get better and then happen again (recurrence). It has a low chance but known risk of deep vein thrombosis (DVT, blood clots in the deep veins) and pulmonary embolism (blood clots moving to the lungs). How often SVT occurs in the population is unknown.