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

A nurse is preparing to administer lorazepam 1 mg PO to an older adult client who has insomnia and who cannot swallow oral tablets.

Available is lorazepam oral solution 2 mg/mL. How many mL should the nurse plan to administer?
(Round to the nearest tenth. Use a leading zero if it applies.)
Answer and Explanation

The Correct Answer is ["0.5"]

Step 1 is to determine the amount of lorazepam that needs to be administered, which is 1 mg.

Step 2 is to calculate the volume of lorazepam oral solution needed to deliver this dose. This is done using the formula:

Dose (mg) ÷ Concentration (mg/mL)

Given that the solution has a concentration of 2 mg/mL, we calculate:

1 mg ÷ 2 mg/mL = 0.5 mL

Therefore, the nurse should administer 0.5 mL of lorazepam oral solution.


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 B

Explanation

Choice A rationale:

Pseudoparkinsonism mimics the symptoms of Parkinson’s disease but is not typically characterized by choreiform movements, lip smacking, and spastic facial distortions.

Choice B rationale:

Tardive dyskinesia, a potential side effect of long-term use of chlorpromazine, is characterized by involuntary movements such as lip smacking and facial distortions.

Choice C rationale:

Akathisia is characterized by a sense of restlessness and a compulsion to move, not typically by the symptoms described.

Choice D rationale:

Dystonia involves involuntary muscle contractions and distortions but not typically the specific symptoms described.

So, the correct answer is B.

Correct Answer is ["10"]

Explanation

Step 1: Determine the Medication Concentration

  • The total amount of medication in the solution is 250 mg.
  • The total volume of the solution is 5 mL.
  • To find the concentration per mL:
    250 mg ÷ 5 mL = 50 mg/mL

Step 2: Determine the Required Volume

  • The prescribed dose is 500 mg.
  • To find the volume needed:
    500 mg ÷ 50 mg/mL = 10 mL

Thus, the nurse should administer 10 mL of the solution to deliver the required 500 mg dose.

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