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Dosage calculation pn mental health proctored assessment 3.2
Dosage calculation pn mental health proctored assessment 3.2
Total Questions : 35
Showing 10 questions Sign up 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?
Explanation
A) Propranolol extended release 80 mg PO daily: This prescription is appropriate. Propranolol is a beta-blocker used for various conditions, such as hypertension, anxiety, and arrhythmias. The prescribed dose of 80 mg daily is within the standard dosage range for extended-release propranolol and is commonly prescribed for these conditions.
B) Sertraline 125 mg daily: This prescription should be clarified. The typical dosage for sertraline (a selective serotonin reuptake inhibitor, or SSRI) is 50–100 mg daily for most adults, with 125 mg being above the usual starting dose. While higher doses (up to 200 mg daily) are sometimes used, 125 mg daily is not typical and should be clarified with the provider to ensure it is correct.
C) Clonidine transdermal 0.1 mg/24 hr apply every 7 days: This prescription is appropriate. Clonidine is used to treat hypertension, and the 0.1 mg/24 hr transdermal patch is commonly prescribed, applied every 7 days. This is a standard dosing regimen for the transdermal formulation.
D) Pantoprazole 40 mg PO BID: This prescription is appropriate. Pantoprazole, a proton pump inhibitor (PPI), is typically dosed at 40 mg twice daily (BID) for conditions like gastroesophageal reflux disease (GERD) or peptic ulcers. The prescribed dose and frequency are consistent with common clinical practice for more severe cases.
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?
Explanation
A) Clonazepam 0.5 mg PO three times daily: This prescription is appropriate. Clonazepam, a benzodiazepine, is often used for short-term management of anxiety or agitation, which can be associated with manic episodes. The prescribed dose of 0.5 mg three times daily is within the typical therapeutic range and is commonly used in the acute management of mania.
B) Lithium 300 mg PO three times daily: This prescription is appropriate. Lithium is a first-line medication used to treat mania in bipolar disorder. The prescribed dose of 300 mg three times daily falls within the typical dosing range for managing mania. Lithium requires regular blood level monitoring due to its narrow therapeutic window, but the prescription itself is reasonable.
C) Risperidone 3.0 mg PO daily: This prescription is appropriate. Risperidone, an atypical antipsychotic, is commonly prescribed for the management of mania or psychosis in bipolar disorder. The prescribed dose of 3.0 mg daily is within the usual therapeutic range and is often effective for controlling symptoms of mania.
D) Divalproex 1.5 g PO twice daily: This prescription should be clarified. The prescribed dose of 1.5 g twice daily is unusually high for divalproex, which is commonly used for mood stabilization in bipolar disorder. A more typical starting dose for divalproex would be 750 mg to 1 g daily, and it is usually titrated based on the client’s response and serum drug levels. A dose of 3 g daily could increase the risk of side effects, including hepatotoxicity and thrombocytopenia, and should be clarified 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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