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Lpn dosage calculation pn mental health proctored assessment 3.1
Lpn dosage calculation pn mental health proctored assessment 3.1
Total Questions : 35
Showing 10 questions Sign up for moreA nurse is preparing to administer phenelzine 90 mg PO divided in three equal doses daily to a client who has depression. Available is phenelzine 15 mg tablets. How many tablets should the nurse administer per day? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
Step-by-Step Calculation
Understanding the Problem
Total daily dose of phenelzine: 90 mg
Divided into 3 equal doses
Strength of each tablet: 15 mg
We need to find the total number of tablets per day.
Calculations
Calculate the dose per administration:
Dose per administration = Total daily dose / Number of doses
Dose per administration = 90 mg / 3 = 30 mg
Calculate the number of tablets per dose:
Tablets per dose = Dose per administration / Tablet strength
Tablets per dose = 30 mg / 15 mg/tablet = 2 tablets
The nurse should administer 2 tablets per day.
Since the client will receive 2 tablets per dose and will take 3 doses per day, the total number of tablets for the day is:
2 tablets/dose × 3 doses/day = 6 tablets/day
A nurse is reviewing a client's new prescription for temazepam 30 mg PO. Which of the following should the nurse clarify with the provider?
Explanation
A) Time: Clarifying the time refers to confirming when the medication should be administered. This ensures that the client receives the medication at the correct time according to the provider's instructions, which is crucial for medications like temazepam that can affect sleep patterns.
B) Medication: Clarifying the medication involves confirming that temazepam is the correct medication prescribed for the client. This ensures there are no errors in medication administration and that the intended therapeutic effect is achieved.
C) Route: Clarifying the route involves confirming how the medication should be administered. For temazepam 30 mg PO, "PO" (by mouth) is the appropriate and common route for this medication.
D) Dose: Clarifying the dose is critical because 30 mg of temazepam is higher than the usual recommended dose for elderly patients, which is typically 7.5-15 mg. A higher dose can increase the risk of side effects such as sedation, confusion, and falls. Therefore, the nurse should verify the dose with the provider to ensure patient safety.
A nurse is preparing to administer chlorpromazine hydrochloride 40 mg IM to a client who has anorexia nervosa. Available is chlorpromazine hydrochloride injection 25 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
Step-by-Step Calculation
Understanding the Problem
Desired dose: 40 mg of chlorpromazine hydrochloride
Available concentration: 25 mg/mL
Calculations
Calculate the volume to administer:
Volume (mL) = Desired dose (mg) / Concentration (mg/mL)
Volume = 40 mg / 25 mg/mL = 1.6 mL
The nurse should administer 1.6 mL of chlorpromazine hydrochloride.
A nurse is preparing to administer 0.3 g of lithium PO to a client. How many mg of lithium should the nurse administer to the client? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
Answer
The nurse should administer 300 mg of lithium.
Step-by-Step Calculation
Understanding the Problem
Desired lithium dose: 0.3 grams
Need to convert grams to milligrams
Calculations
1 gram = 1000 milligrams
0.3 grams = 0.3 X 1000 = 300 milligrams
The nurse should administer 300 mg of lithium.
A nurse is preparing to administer lorazepam 0.003 g PO to a client who has anxiety. How many mg 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
The nurse should administer 3 mg of lorazepam
Step-by-Step Calculation
Understanding the Problem
Desired lorazepam dose: 0.003 g
Need to convert grams to milligrams
Calculations
1 gram = 1000 milligrams
0.003 grams = 0.003 X 1000 = 3 milligrams
The nurse should administer 3 mg of lorazepam.
A nurse is preparing to administer hydroxyzine hydrochloride 75 mg IM to a client who has anxiety. Available is hydroxyzine hydrochloride injection 50 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
Step-by-Step Calculation
Understanding the Problem
Desired dose: 75 mg hydroxyzine hydrochloride
Available concentration: 50 mg/mL
We need to find the volume to administer.
Calculations
Calculate the volume to administer:
Volume (mL) = Desired dose (mg) / Concentration (mg/mL)
Volume = 75 mg / 50 mg/mL = 1.5 mL
The nurse should administer 1.5 mL of hydroxyzine hydrochloride.
A nurse is preparing to administer sertraline 75 mg PO to a client who has post-traumatic stress disorder. Available is sertraline 50 mg tablets. How many tablets 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
The nurse should administer 1.5 tablets of sertraline.
Understanding the Problem
Desired sertraline dose: 75 mg
Available sertraline tablets: 50 mg each
We need to find the number of tablets to administer.
Calculations
Calculate the number of tablets:
Number of tablets = Desired dose / Tablet strength
Number of tablets = 75 mg / 50 mg/tablet = 1.5 tablets
The nurse should administer 1.5 tablets of sertraline.
A nurse is preparing to administer fluphenazine hydrochloride 3 mg IM to a client who has schizophrenia. Available is fluphenazine hydrochloride Injection 2.5 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
Answer
The nurse should administer 1.2 mL of fluphenazine hydrochloride.
Step-by-Step Calculation
Understanding the Problem
Desired dose: 3 mg fluphenazine hydrochloride
Available concentration: 2.5 mg/mL
We need to find the volume to administer.
Calculations
Calculate the volume to administer:
Volume (mL) = Desired dose (mg) / Concentration (mg/mL)
Volume = 3 mg / 2.5 mg/mL = 1.2 mL
The nurse should administer 1.2 mL of fluphenazine hydrochloride.
A nurse is preparing to administer haloperidol 75 mg IM to a client who has schizophrenia. Available is haloperidol 50 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
Answer
The nurse should administer 1.5 mL of haloperidol.
Step-by-Step Calculation
Understanding the Problem
Desired dose: 75 mg haloperidol
Available concentration: 50 mg/mL
We need to find the volume to administer.
Calculations
Calculate the volume to administer:
Volume (mL) = Desired dose (mg) / Concentration (mg/mL)
Volume = 75 mg / 50 mg/mL = 1.5 mL
The nurse should administer 1.5 mL of haloperidol.
A nurse is preparing to administer risperidone 25 mg IM to an older adult client who has schizophrenia. Available is risperidone injection 25 mg/2 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
The nurse should administer 2 mL of risperidone.
Step-by-Step Calculation
Understanding the Problem
Desired risperidone dose: 25 mg
Available concentration: 25 mg/2 mL
We need to find the volume to administer.
Calculations
Since the desired dose (25 mg) is equal to the concentration per mL (25 mg/2 mL), we can directly administer the entire 2 mL vial.
The nurse should administer 2 mL of risperidone.
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