ATI Pediatrics Exam 2 | Nurselytic

Correct Answer: D

Rationale: The correct answer is D: Use a 1.8 mm (0.5 in) needle. For a preschooler, a shorter needle is recommended to avoid reaching deep tissues. A 1.8 mm needle is appropriate for intramuscular injections in the deltoid muscle of a preschooler. This length ensures that the vaccine is administered into the muscle layer without penetrating too deeply, reducing the risk of injury or reaching nerves.

A: Using a 20 gauge needle is not the best choice for a preschooler, as it may be too thick and cause unnecessary discomfort.
B: Inserting the needle just below the acromion process is incorrect because the deltoid muscle is located slightly lower than this anatomical landmark.
C: Inserting the needle at a 15 degree angle is not recommended for deltoid muscle injections, as a 90 degree angle is typically used for intramuscular injections.
Overall, the correct answer is D as it aligns with safe and appropriate injection practices

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