2007年7月5日 星期四

Thromboembolism

Pulm. embolism

  • Q: Does a normal level of oxygen saturation on pulse oximetry rule out pulmonary embolism?
  • A: A normal level of oxygen saturation on pulse oximetry does not rule out pulmonary embolism. However, a rapid pulse is a nonspecific finding that is often, but not always, seen in the presence of thromboembolism.
DVT
  • Q: Does oral contraceptive use increase the risk for deep venous thrombosis? Does it make a difference how long the woman has been using oral contraceptives?
  • A: Oral contraceptives increase the risk for deep venous thrombosis. Depending on the preparation, oral contraceptives can increase the risk of DVTs by a factor of two to five. The greatest risk occurs during the first 6 months of use.

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