Final answer:
In the case of a 58-year-old male with a narrow complex tachycardia, you should avoid the over-prescription of beta blocker drugs and cardioversion or defibrillation treatments.
Step-by-step explanation:
Based on the information provided, in the case of a 58-year-old male presenting with a narrow complex tachycardia with a rate of 180 bpm, you should avoid treatments that may further increase the heart rate or worsen the condition. One treatment to avoid is the over-prescription of beta blocker drugs, which reduce heart rate and may lead to bradycardia. Another treatment to avoid is cardioversion or defibrillation, which involves controlled electric shocks and is typically used for arrhythmias with severe symptoms, but may not be suitable for a patient with a narrow complex tachycardia.