ACLS Megacode 4: Supraventricular Tachycardia

A 24 y/o F presents complaining of feeling light-headed and short of breath.

Her initial vitals are as follows: T 36.8 / BP 120/60 / HR 180 / RR 20 / Pulseox 100% on room air.

You check an EKG which demonstrates the following:

You attempt vagal maneuvers but the patient remains in what appears to be SVT.

You administer 6mg of adenosine and get the following EKG:

The patient originally felt improved but now complains of feeling light-headed again.

Her repeat vitals are as follows: T: 36.8 BP: 70/40 HR: 180s RR: 24 O₂: 100%

You get a repeat EKG which demonstrates the following: