Ans- ◦Insert the needle through the subxiphoid approach on the left side
under fluoroscopy. Advance the needle and syringe until the needle tip is
posterior to the rib cage. The needle should be advanced toward the shoulder at
an angle 15-20° from the abdominal wall. While advancing the needle toward the
pericardial space, aspirate the syringe and inject lidocaine for a better
analgesic effect. Continue to advance the needle until fluid is aspirated in the
syringe or the ECG monitor shows ST elevation
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