During a well-check for a 12-month-old, the nurse plans to administer the first dose of the varicella vaccine. What is an appropriate action for the nurse to take?

Delay the immunization if the child presents with nasopharyngitis.

Evaluate for presence of allergies to vaccine components.

Refrain from administering since the first dose is not given until 4 years of age.

Administer intramuscularly into the vastus lateralis.