Emergency Nurse Practitioner (ENP) Practice Test

What occurs in the event of an ANI failure?

1. Emergency alert is sent to nearby phones

2. Call is automatically rerouted

3. A LI display is not possible

4. Backup ANI system activates

The correct answer is: A LI display is not possible

When there is an ANI (Automatic Number Identification) failure, the relevant consequence is that a LI (Lawful Intercept) display is not possible. ANI is crucial for identifying the number from which the call originated, and if this system fails, the ability to display the caller's information—including their number—becomes compromised. This situation hinders the ability of emergency responders to quickly ascertain critical information about the caller, which could be vital in an emergency scenario. In terms of the other options, while some may relate to the general handling of calls during an emergency, they don't specifically address the impact of an ANI failure. For instance, sending alerts or rerouting calls would potentially take place under other circumstances but are not direct outcomes of an ANI failure. The activation of a backup ANI system might occur, but it does not specifically relate to the implications of the primary system failure in the context of displaying caller information.