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    ATI LPN Pharmacology Proctored Exam

    Why does the nurse administer lorazepam intramuscularly (IM) to the patient rather than into the subcutaneous tissue?

    Explanation & Rationale

    Choice A reason: Body fat levels influence subcutaneous absorption but are not the primary reason for choosing IM over SC injection in this scenario. Choice B reason: Needle size varies by medication and patient factors, but this is not the defining reason for selecting IM over SC injection. Choice C reason: IM injections deliver medication directly to muscle tissue with a rich vascular supply, ensuring faster absorption and onset compared to subcutaneous administration. Choice D reason: IM injections are not inherently safer for patients at risk of bleeding; they carry similar risks and require proper assessment before administration.

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