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Dosage calculation pn mental health proctored assessment 3.2
Total Questions : 35
Showing 10 questions, Sign in for moreA nurse is caring for a school-age child who has attention deficit disorder and a new prescription for methylphenidate 10 mg PO at 0800 and 1200 and 5 mg at 1600. What is the total daily dose in mg prescribed for this client? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
Identify the doses and times:
8:00 AM: 10 mg
12:00 PM (noon): 10 mg
4:00 PM (1600): 5 mg
Add the doses together:
10 mg + 10 mg + 5 mg = 25 mg
A nurse is caring for a client who has a new prescription for bupropion 450 mg PO daily divided equally every 8 hr. Available is bupropion 150 mg sustained-release tablets. How many tablets should the nurse administer per dose? (Round the answer to the nearest whole number. Use a leading cero fit applies. Do not use a trailing zero.)
Explanation
Calculate the number of doses per day:
The medication is administered every 8 hours.
There are 24 hours in a day, so there are 24 hours / 8 hours = 3 doses per day.
Calculate the dose per administration:
The total daily dose is 450 mg.
There are 3 doses per day, so each dose is 450 mg / 3 doses = 150 mg.
Calculate the number of tablets per dose:
Each tablet contains 150 mg of bupropion.
The required dose is 150 mg.
150 mg / 150 mg per tablet = 1 tablet per dose
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 answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
Understand the relationship between grams (g) and milligrams (mg):
1 gram (g) is equal to 1000 milligrams (mg).
Set up the conversion:
We need to convert 0.15 grams to milligrams. We can use the following formula:
(Grams) x (1000 mg/g) = Milligrams
Plug in the value and calculate:
(0.15 g) x (1000 mg/g) = 150 mg
A nurse is reviewing new prescriptions for a client. Which of the following prescriptions should the nurse clarify?
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?
A nurse is preparing to administer epinephrine 0.5 mg IM to a client. Available is epinephrine 1 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.)
Explanation
Identify the desired dose:
The doctor has ordered 0.5 mg of epinephrine.
Identify the available medication concentration:
The available epinephrine injection is 1 mg/mL.
Set up the calculation:
We need to find out how many mL are needed to administer 0.5 mg of the medication. We can use the following formula:
(Desired dose) / (Concentration) = Volume to administer
Plug in the values and calculate:
(0.5 mg) / (1 mg/mL) = 0.5 mL
A nurse is preparing to administer quetiapine extended release 0.6 g PO to a client. How many mg of quetiapine 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.)
Explanation
Understand the relationship between grams (g) and milligrams (mg):
1 gram (g) is equal to 1000 milligrams (mg).
Set up the conversion:
We need to convert 0.6 grams to milligrams. We can use the following formula:
(Grams) x (1000 mg/g) = Milligrams
Plug in the value and calculate:
(0.6 g) x (1000 mg/g) = 600 mg
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 medication. 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.)
Explanation
Identify the desired dose:
The doctor has ordered 3 mg of benztropine mesylate.
Identify the available medication concentration:
The available benztropine mesylate injection is 1 mg/mL.
Set up the calculation:
We need to find out how many mL are needed to administer 3 mg of the medication. We can use the following formula:
(Desired dose) / (Concentration) = Volume to administer
Plug in the values and calculate:
(3 mg) / (1 mg/mL) = 3 mL
A nurse is preparing to administer naloxone 0.2 mg IM to 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 trailing zero.)
Explanation
Identify the desired dose:
The doctor has ordered 0.2 mg of naloxone.
Identify the available medication concentration:
The available naloxone injection is 0.4 mg/mL.
Set up the calculation:
We need to find out how many mL are needed to administer 0.2 mg of the medication. We can use the following formula:
(Desired dose) / (Concentration) = Volume to administer
Plug in the values and calculate:
(0.2 mg) / (0.4 mg/mL) = 0.5 mL
A nurse is preparing to administer olanzapine 10 mg IM to a client who has schizophrenia. Available is olanzapine 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.)
Explanation
Identify the desired dose:
The doctor has ordered 10 mg of olanzapine.
Identify the available medication concentration:
The available olanzapine injection is 5 mg/mL.
Set up the calculation:
We need to find out how many mL are needed to administer 10 mg of the medication. We can use the following formula:
(Desired dose) / (Concentration) = Volume to administer
Plug in the values and calculate:
(10 mg) / (5 mg/mL) = 2 mL
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