A 40 year old woman with pleuritic chest pain and breathlessness.
Acute pulmonary embolus
The following, often transient, changes may be seen in a large pulmonary embolus.
- an S1Q3T3 pattern
- a prominent S wave in lead I
- a Q wave and inverted T wave in lead III
- sinus tachycardia
- T wave inversion in leads V1 - V3
- Right Bundle Branch Block
- low amplitude deflections