Try Naxlex NCLEX-RN (Free-Trial)

A nurse is preparing to administer benztropine mesylate 3 mg IM to a client who has schizophrenia and is experiencing an extrapyramidal reaction to an antipsychotic medications. Available is benztropine mesylate injection 1 mg/mL in 2 mL ampules. How many mL should the nurse administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Answer and Explanation

The Correct Answer is ["3"]

The nurse should administer 3 mL of benztropine mesylate.

Step-by-Step Calculation

Understanding the Problem

Desired dose: 3 mg benztropine mesylate

Available concentration: 1 mg/mL benztropine mesylate

Setting Up the Equation

We can use the following formula:

Desired dose (mg) = Concentration (mg/mL) X Volume (mL)

We need to find the volume (mL).

Calculating the Volume

3 mg = 1 mg/mL X Volume (mL)

To isolate Volume, we divide both sides by 1 mg/mL:

Volume (mL) = 3 mg / (1 mg/mL)

Volume (mL) = 3 mL

The nurse should administer 3 mL of benztropine mesylate.

Nursing Test Bank

Test Bank #1: RN Pharmacology Exams Test Bank #2: RN Medical-Surgical Exams Test Bank #3: RN Fundamentals Exams Test Bank #4: RN Maternal-Newborn Exams Test Bank #5: RN Anatomy and Physiology Exams Test Bank #6: RN Obstetrics and Pediatrics Exams Test Bank #7: RN Fluid and Electrolytes Exams Test Bank #9: RN Adult Health Test Bank #10: RN Dosage Calculation Test Bank #11: RN Community Health Exams Test Bank #12: RN Psychology Exams Test Bank #13: RN Nursing Care Of Children Test Bank #14: RN Foundations of Nursing Exams

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

Naxlex Comprehensive Predictor Exams

Exam #1: RN Comprehensive predictor 2023 proctored exam Exam #2: Ati rn vati comprehensive predictor proctored exam Exam #3: Ati Rn Comprehensive Predictor Proctored Exam 2023 Exam #4: Rn Comprehensive Predictor 2023 Proctored Exam - St. Joseph Exam #5: RN Comprehensive Predictor Proctored Exam (National U CA San Diego) Exam #6: Ati rn comprehensive predictor 2023 retake proctored exam Exam #7: RN Hesi Exit Proctored Exam Exam #8: Hesi RN Exit proctored exam Exam #9: Hesi rn exit proctored exam Exam #10: Hesi Rn compass exit B proctored exam

Free Nursing Study Resources

Correct Answer is A

Explanation

A. Divalproex 1.5 g PO twice daily:
Divalproex (valproic acid) is used for managing mania and typically dosed between 750 mg and 3 g daily, depending on the specific needs of the client and their blood levels. However, 1.5 g twice daily (3 g total daily) might be higher than usual initial dosing and could warrant clarification to ensure that this is an appropriate dose for the client and does not exceed recommended maximums.

B. Lithium 300 mg PO three times daily:
Lithium is commonly prescribed for mania, and 300 mg three times daily is a standard dosing regimen. Lithium levels are monitored to ensure therapeutic efficacy and avoid toxicity, so this dosage is within a typical range.

C. Clonazepam 0.5 mg PO three times daily:
Clonazepam is a benzodiazepine that can be used to manage anxiety or agitation associated with mania. A dose of 0.5 mg three times daily is within the usual range for short-term management and does not typically require clarification.

D. Risperidone 3.0 mg PO daily:
Risperidone is an atypical antipsychotic used to manage symptoms of mania, and 3 mg daily is a common starting dose. This dosage is appropriate and generally does not require further clarification.

Correct Answer is ["1"]

Explanation

The nurse should administer 1 tablet of haloperidol.

Step-by-Step Calculation

Understanding the Problem

Desired haloperidol dose: 0.5 mg

Available tablets: 500 mcg each

We need to find the number of tablets to administer.

Calculations

Convert milligrams to micrograms:

1 mg = 1000 mcg

0.5 mg = 0.5 X 1000 = 500 mcg

Calculate the number of tablets:

Number of tablets = Desired dose (mcg) / Tablet strength (mcg)

Number of tablets = 500 mcg / 500 mcg/tablet = 1 tablet

The nurse should administer 1 tablet of haloperidol.

View Question and Answer

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

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is reconciling the medications of a client who was newly admitted for management of mania. Which of the following prescriptions should the nurse clarify with the provider?

Correct Answer is A

Explanation

A nurse is preparing to administer 0.5 mg haloperidol PO to a client. Available is haloperidol 500 mcg tablets. How many tablets should the nurse administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Correct Answer is ["1"]

Explanation

A nurse is preparing to administer haloperidol 75 mg IM to a client who has schizophrenia. Available is haloperidol 50 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

A nurse is preparing to administer amoxapine 300 mg PO to a client. The nurse should identify that this is equivalent to how many g? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

A nurse is preparing to administer lorazepam 0.003 g PO to a client who has anxiety. How many mg should the nurse administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

A nurse is preparing to administer desipramine 0.15 g PO to a client. The nurse should identify that this is equivalent to how many mg? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

A nurse is preparing to administer naloxone 0.2 mg IM to a client. Available is naloxone injection 0.4 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

A nurse is reviewing a client's prescription for haloperidol 2 mg every 4 hr PRN agitation. Before administering this medication, the nurse should ask the provider to add which of the following components of a medication prescription?

A nurse is preparing to administer diazepam 15 mg IM to a client who has status epilepticus. Available is diazepam injection 5 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)