When preparing to administer an intradermal injection to an adult, the nurse ensures that the dose amount does not exceed 0.1 mL. A 1 mL tuberculin syringe is used with a 25-gauge needle and is administered at which angle?
12-degree.
15-degree.
30-degree.
45-degree.
The Correct Answer is B
Choice A reason: A 12-degree angle is too shallow, increasing the risk of incorrect placement and ineffective administration of the intradermal injection.
Choice B reason: The 15-degree angle ensures precise intradermal placement, forming a wheal that indicates proper administration into the dermis for optimal absorption.
Choice C reason: A 30-degree angle places the medication too deep into subcutaneous tissue, compromising intended drug absorption.
Choice D reason: A 45-degree angle results in subcutaneous rather than intradermal injection, altering the drug’s effectiveness and purpose.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A reason: 1 mL gives 50 mg; this underdoses the 75 mg order, reducing Vistaril’s sedative effect, risking inadequate anxiety relief for the patient.
Choice B reason: 1.5 mL is correct; 75 mg divided by 50 mg/mL equals 1.5 mL, delivering the precise IM dose for effective anxiolytic action safely.
Choice C reason: 2 mL provides 100 mg; this overdoses Vistaril, risking excessive sedation or hypotension, exceeding the ordered therapeutic amount unnecessarily.
Choice D reason: 2.5 mL yields 125 mg; this far exceeds 75 mg, amplifying side effects like drowsiness or respiratory depression, unsafe for anxiety management.
Correct Answer is C
Explanation
Choice A reason: Convenience doesn’t ensure efficacy; supplements lack rigorous testing, potentially delivering inconsistent doses or contaminants, unlike prescription drugs’ controlled standards.
Choice B reason: Cost isn’t a clinical justification; lower price may reflect unregulated production, risking potency or safety compared to prescriptions validated by scientific trials.
Choice C reason: Supplements aren’t FDA-regulated like prescriptions; lacking standardized purity and efficacy tests, they may contain variable active ingredients, posing therapeutic risks.
Choice D reason: Plant-based doesn’t guarantee safety; many herbs are toxic or interact harmfully with drugs, unlike prescriptions with established pharmacokinetics and safety profiles.
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