Final answer:
Potentially reversible causes of AV nodal block include medications, electrolyte imbalances, and acute myocardial infarction.
Step-by-step explanation:
Potentially reversible causes of AV nodal block include:
- Medications that affect the conduction through the AV node, such as beta blockers or calcium channel blockers.
- Electrolyte imbalances, such as low potassium or high calcium levels.
- Acute myocardial infarction (heart attack) that affects blood flow to the AV node.
These causes can lead to a temporary AV nodal block, which can be reversed by addressing the underlying issue.