A nurse is preparing to administer haloperidol 5 mg IM to a client. The amount available is haloperidol 20 mg/mL. How many mL should the nurse administer?
(Round the answer to the nearest hundredth. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["0.25"]
To calculate the volume of haloperidol solution needed, we can use the formula:
Volume (mL)=Dose (mg)/Concentration (mg/mL)
Given: Dose of haloperidol = 5 mg
Concentration of haloperidol solution = 20 mg/mL
Substituting the given values into the formula:
Volume (mL)=5 mg/20 mg/mL
Volume (mL)=5/20
Volume (mL)=0.25 mL
Rounded to the nearest hundredth, the nurse should administer 0.25 mL of haloperidol solution.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Alprazolam is a benzodiazepine medication commonly used to treat anxiety and insomnia. Here's the rationale for each option:
A. "Avoid activities that require alertness, such as driving.": Alprazolam can cause drowsiness and impair cognitive function, so it's essential for clients to avoid activities that require alertness, such as driving or operating heavy machinery, while taking this medication. Providing this instruction promotes safety and prevents accidents.
B. "Monitor for peripheral edema.": Peripheral edema is not a common side effect of alprazolam. This instruction is not relevant to the use of this medication.
C. "Take this medication with a high-fat meal.": Alprazolam can be taken with or without food, but taking it with a high-fat meal may delay its absorption. Therefore, it is not necessary to instruct the client to take it with a high-fat meal, especially since this may affect the medication's effectiveness.
D. "Take this medication every night before sleep.": While alprazolam may be used to treat insomnia, it is not typically recommended for nightly use due to the risk of dependence and tolerance. Using it nightly can lead to addiction and withdrawal symptoms if abruptly stopped. Therefore, this instruction is not appropriate.
Correct Answer is D
Explanation
A. A client received gentamicin intermittent IV bolus over 1 hr:
While gentamicin is typically administered as an intermittent IV bolus, the rate of administration over 1 hour is not necessarily inappropriate. However, the specific institutional protocol or medication administration guidelines should be followed. If the rate of administration deviates significantly from the standard protocol or manufacturer's recommendations, it may warrant further investigation but may not necessarily require an incident report.
B. A nurse used a 25-gauge 3-inch needle to administer a heparin injection:
Using a 25-gauge 3-inch needle for heparin injection is not standard practice and may not be the most appropriate needle size for subcutaneous administration. However, it does not necessarily indicate a need for an incident report unless it resulted in harm to the client. It may prompt further education or clarification regarding appropriate needle selection for subcutaneous injections.
C. A nurse injected Demerol IM into the vastus lateralis site of an adult:
While Demerol (meperidine) is typically administered intramuscularly, the choice of the vastus lateralis site for injection in an adult may not be the most common practice, but it is an acceptable site for IM injections. Unless there are specific contraindications or adverse outcomes related to the site selection, this finding may not require an incident report. However, it could prompt a review of injection site selection guidelines or further education.
D. A client received a crushed bupropion XL tablet mixed with applesauce:
This finding indicates a need for an incident report. Bupropion XL (extended-release) tablets should not be crushed or chewed, as this can lead to rapid release and absorption of the medication, potentially causing adverse effects or toxicity. Administering crushed extended-release tablets is a medication error that warrants an incident report to document the event, assess potential harm to the client, and implement corrective actions to prevent recurrence.
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