NCLEX-PN Practice Q 68

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The LPN is preparing to administer an injection of vitamin K to the newborn. The nurse should administer the injection in the:

  

     A. Rectus femoris muscle

     B. Vastus lateralis muscle

     C. Deltoid muscle

     D. Dorsogluteal muscle

    

    

Correct Answer: B. Vastus lateralis muscle

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Option B: The recommended injection site is the largest muscle mass in an infant which is the middle third of the vastus lateralis (anterolateral thigh).

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Options A and C: Rectus femoris muscle and deltoid muscle are not as well developed in the newborn.

Option D: Dorsogluteal muscle is not used for IM injections until the child is 3 years of age.

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