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NurseDive Free Nursing Practice Question
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.)
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 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.
Similar Questions
A nurse is preparing to administer citalopram 30 mg PO to a client who has major depression.
Available in citalopram 20 mg tablets.
How many tablets should the nurse administer?
(Round the answer to the nearest tenth. Use a leading zero if it applies.)
Full Explanation
Step 1 is to determine the amount of citalopram that needs to be administered, which is 30 mg.
Step 2 is to calculate the number of tablets needed to deliver this dose. This is done using the formula:
Dose (mg) ÷ Strength per tablet (mg/tab)
Given that each tablet contains 20 mg, we calculate:
30 mg ÷ 20 mg/tab = 1.5 tablets
Therefore, the nurse should administer 1.5 tablets of citalopram.
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.)
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.
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.