Cardiac puncture
Pneumothorax/pneumopericardium
Dysrhythmias
PVC (most common)
Vasovagal bradycardia (responsive to atropine)
False negative (clotted pericardial blood)
False positive (intracardiac puncture)
PVC (most common)
Vasovagal bradycardia (responsive to atropine)
Pericardiocentesis
Thoracotomy 
Thoracotomy
Thoracentesis
Thoracic lavage
Vasopressors
Transvenous pacing
Needle cricothyrotomy