does not cause nose bleeding...
Please accept my condolences for loss of your beloved wife!
Usually, pulmonary embolism is associate with hemoptysis
(coughing up blood) and not nasal bleeding
Spikes in blood pressure or damages to the local blood vessels can cause nasal bleeding.
In case of your wife, if she had nasal bleeding and pulmonary embolism at the same time, then:
- nasal bleeding - is due to spike in blood pressure or
- when she has coughed up blood, a part of it has been "reported" as nasal bleeding.
Hope it answered to your concern!
Once again, please accept my heartfelt condolences on the loss of your loved wife.