A nurse is educating a patient who has been prescribed Haloperidol about the risk of extrapyramidal symptoms. Which of the following statements by the patient indicates a need for further teaching?

"All antipsychotic drugs carry an equal risk of causing movement-related side effects."

"These side effects happen because this drug blocks dopamine in certain parts of my brain."

"Taking other drugs with my Haloperidol can increase the risk of extrapyramidal symptoms."

"Tardive dyskinesia occurs with prolonged use of an antipsychotic drug."

Answer and Explanation

The Correct Answer is A

A. "All antipsychotic drugs carry an equal risk of causing movement-related side effects.": First-generation antipsychotics like Haloperidol are more likely to cause extrapyramidal symptoms due to their potent dopamine D2 receptor blockade. Second-generation antipsychotics carry a lower risk, making this statement inconsistent with clinical evidence.
B. "These side effects happen because this drug blocks dopamine in certain parts of my brain.": Extrapyramidal symptoms are primarily due to dopamine blockade in the nigrostriatal pathway, which regulates motor control. Interference in this region leads to tremors, rigidity, and other movement disorders.
C. "Taking other drugs with my Haloperidol can increase the risk of extrapyramidal symptoms.": Concurrent use of medications that also affect dopamine pathways or have sedative effects can increase the likelihood of developing EPS. Drug interactions are a significant factor in overall risk.
D. "Tardive dyskinesia occurs with prolonged use of an antipsychotic drug.": Long-term use of dopamine-blocking agents, especially at high doses, can lead to tardive dyskinesia. This condition involves involuntary movements and may be irreversible, particularly in older adults.

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Free Nursing Study Resources

Correct Answer is ["4"]

Explanation

Desired dose = 8 mg

The medication label for Perphenazine Tablets, USP states: 2 mg per tablet.

Determine the number of tablets needed:

Number of tablets = Desired dose / Dose per tablet

= 8 mg / 2 mg/tablet

= 4 tablets.

Correct Answer is ["10"]

Explanation

Desired dose = 20 mg

Available concentration = 10 mg per 5 mL

Calculate the concentration in mg/mL:

Concentration (mg/mL) = Available dose / Available volume

= 10 mg / 5 mL

= 2 mg/mL

Volume to administer = Desired dose / Available concentration

= 20 mg / 2 mg/mL

= 10 mL

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A nurse is educating a patient who has been prescribed Haloperidol about the risk of extrapyramidal symptoms. Which of the following statements by the patient indicates a need for further teaching?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

Order: Perphenazine 8 mg PO STAT Available: Refer to the med label below How many tablets will you administer? (Insert the numerical value only)

Correct Answer is ["4"]

Explanation

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Correct Answer is ["10"]

Explanation

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