How it Works
Try Naxlex NCLEX-RN (Free-Trial)

If the doctor orders 640 mg acetaminophen liquid P.O. STAT and the bottle label reads acetaminophen 80 mg per 1/2 tsp you should give the patient

A.

15 mL/dose

B.

10 mL/dose

C.

18 mL/dose

D.

20 mL/dose

Answer and Explanation

The Correct Answer is D

Step 1: Identify the order

  • The doctor ordered 640 mg acetaminophen PO STAT.

Step 2: Interpret the supply

  • The bottle says 80 mg per ½ teaspoon.
  • ½ teaspoon = 2.5 mL.
  • So, 80 mg ÷ 2.5 mL = 32 mg per mL.

Step 3: Calculate the volume needed

  • Ordered dose = 640 mg.
  • Concentration = 32 mg per mL.
  • Volume = 640 ÷ 32 = 20 mL.


Get 100+ Naxlex Exit Exams for $79 Try Naxlex NCLEX-RN (14 Day Free-Trial)

Naxlex Comprehensive Predictor Exams

Free Nursing Study Resources

Related Questions

Correct Answer is A

Explanation

A. Gives the reasons for using the drug:"Indications" is the pharmacological term describing the FDA-approved conditions, diseases, or symptoms for which a specific medication is prescribed to treat (e.g., "Indicated for the treatment of hypertension").

B. Provides information that is crucial to protect against medication error:This generally refers to Warnings, Boxed Warnings (Black Box), or Contraindications.

C. Describes conditions in which a drug should be given with caution:This refers to Precautions or Contraindications (situations where the drug should not be used or used very carefully).

D. Explains how the drug works:This refers to the Mechanism of Action (MOA) or Pharmacodynamics.

Correct Answer is C

Explanation

A. 1-mL tuberculin syringe with 1-inch bevel:Tuberculin syringes are used for small-volume Intradermal or Subcutaneous injections. They are not suitable for the viscosity or depth required for an IM corticosteroid injection.

B. 1-to 2-mL syringe with 1/2-to 1-inch needle:While a 1-inch needle canbe used for the deltoid in some adults, a 1/2-inch needle is too short to reach deep muscle tissue in an average adult, risking subcutaneous deposition (which can cause tissue damage with corticosteroids).

C. 2-to 3-ml syringe with 1-to 1 1/2-inch needle:This is the standard equipment for an adult IM injection. A 3-mL syringe accommodates the medication volume, and a 1 to 1.5-inch needle ensures the medication passes through subcutaneous fat and reaches the deep muscle tissue (Ventrogluteal or Vastus Lateralis).

D. 2-to 3-ml syringe with 1- to 2-inch needle:While the syringe size is correct, a 2-inch needle is typically reserved for patients with obesity who have a larger layer of adipose tissue to penetrate. For an average adult, this may be too long and could strike bone.

Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.

Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today

Register