Nursing practice questions with comprehensive rationales
NurseDive Free Nursing Practice Question
A nurse is preparing to administer haloperidol lactate 12 mg PO for a client who has schizophrenia and who cannot swallow tablets.
Available is haloperidol 2 mg/mL oral solution.
How many mL should the nurse administer?
(Round the answer to the nearest whole number. Use a leading zero if it applies.)
This question is an excerpt from Nurse Dive's nursing test bank - ATI PN Custom Pharmacology Cohert 6 Mid term Remidiation Cloned Assessment 1 Proctored Exam. Take the full exam now
Full Explanation
Step 1 is to determine the amount of haloperidol lactate that needs to be administered, which is 12 mg.
Step 2 is to calculate the volume of the haloperidol oral solution needed to deliver this dose. This is done using the formula:
Dose (mg) ÷ Concentration (mg/mL)
Given that the available concentration is 2 mg/mL, we calculate:
12 mg ÷ 2 mg/mL = 6 mL
Therefore, the nurse should administer 6 mL of the haloperidol oral solution.
Similar Questions
A nurse is preparing to administer olanzapine 7.5 mg PO to a client who has schizophrenia.
Available is olanzapine 2.5 mg tablets.
How many tablets should the nurse plan to administer? (Round to the nearest whole number.
Use a leading zero if it applies.
Full Explanation
Step 1 is to determine the total amount of medication needed, which is 750 mg. Step 2 is to convert the medication needed into mL using the medication’s concentration. So, 750 mg ÷ (250 mg/5 mL) = 15 mL.
So, the correct answer is 15 mL.
A nurse is preparing to administer olanzapine 7.5 mg PO to a client who has schizophrenia. Available is olanzapine 2.5 mg tablets. How many tablets should the nurse plan to administer?
(Round to the nearest whole number. Use a leading zero if it applies.)
Full Explanation
Step 1: Identify Given Information
- Prescribed dose: 7.5 mg
- Available tablet strength: 2.5 mg per tablet
Step 2: Calculate the Number of Tablets
To determine how many tablets to administer, divide the prescribed dose by the strength of each tablet:
7.5 mg ÷ 2.5 mg/tablet = 3 tablets
The nurse should administer 3 tablets of olanzapine.
A nurse is reinforcing discharge teaching with a client who has a prescription for phenytoin.
Which of the following instructions should the nurse include in the teaching?.
A. Switch phenytoin brands with each refill.
Switching brands of phenytoin can lead to variations in drug absorption and serum drug levels, potentially leading to a loss of seizure control or toxicity. Therefore, this is not a correct instruction.
B. Alter the phenytoin administration regimen each week.
Altering the phenytoin administration regimen each week can lead to fluctuations in serum drug levels, potentially leading to a loss of seizure control or toxicity. Therefore, this is not a correct instruction.
C. Phenytoin turns urine blue.
Phenytoin does not turn urine blue. This is a side effect associated with some other medications, but not phenytoin. Therefore, this is not a correct instruction.
D. Alcohol increases the chance of phenytoin toxicity.
Alcohol can increase serum phenytoin levels, potentially leading to toxicity. Therefore, this is a correct instruction. So, the correct answer is D. Alcohol increases the chance of phenytoin toxicity.
Full Explanation
Choice A rationale:
Switching brands of phenytoin can lead to variations in drug absorption and serum drug levels, potentially leading to a loss of seizure control or toxicity. Therefore, this is not a correct instruction.
Choice B rationale:
Altering the phenytoin administration regimen each week can lead to fluctuations in serum drug levels, potentially leading to a loss of seizure control or toxicity. Therefore, this is not a correct instruction.
Choice C rationale:
Phenytoin does not turn urine blue. This is a side effect associated with some other medications, but not phenytoin. Therefore, this is not a correct instruction.
Choice D rationale:
Alcohol can increase serum phenytoin levels, potentially leading to toxicity. Therefore, this is a correct instruction.
So, the correct answer is D. Alcohol increases the chance of phenytoin toxicity.