The client diagnosed with pernicious anemia is prescribed cyanocobalamin (Cyanabin), vitamin B12. Which intervention should the nurse implement? 1. Administer the intramuscular injection via Z-track....

The client diagnosed with pernicious anemia is prescribed cyanocobalamin (Cyanabin), vitamin B12. Which intervention should the nurse implement?

1. Administer the intramuscular injection via Z-track.

2. Instruct the client to sip medication through a straw.

3. Double-check the dose with another registered nurse.

4. Monitor the client’s serum potassium level.