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Ati Dosage Calculations RN Fundamentals
Ati Dosage Calculations RN Fundamentals
Total Questions : 29
Showing 10 questions Sign up for moreA nurse is preparing to administer methylprednisolone acetate 60 mg IM weekly. Methylprednisolone acetate suspension for injection 80 mg/mL is available. How many mL should the nurse administer per dose? Round the answer to the nearest hundredth. Use a leading zero if it applies. Do not use a trailing zero.
Explanation
The correct answer and explanation is:
0.75 mL.
To calculate the mL needed, divide the dose (60 mg) by the concentration (80 mg/mL): 60 mg ÷ 80 mg/mL = 0.75 mL
Therefore, the correct answer is 0.75 mL.
A nurse is preparing to administer quinapril 20 mg PO. Quinapril 40 mg tablets are available. 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
To calculate the number of tablets to be administered, the nurse should divide the prescribed dose (20 mg) by the strength of the available medication (40 mg/tablet): 20 mg / 40 mg/tablet = 0.5 tablets.
A nurse is preparing to administer lidocaine 200 mg IM stat and repeat in 60 min. Lidocaine injection 300 mg/3 mL is available. How many mL should the nurse administer per dose? Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.
Explanation
To calculate the volume to be administered, the nurse should divide the prescribed dose (200 mg) by the
concentration of the available medication (300 mg/3 mL): 200 mg / (300 mg/3 mL) = 2 mL.
A nurse is preparing to administer furosemide 20 mg PO to a client. How should the nurse expect the medication to appear? Refer to the medication label options below to answer the question.
Explanation
As a round, white tablet with "EP116" stamped on one side of the tablet.
This is because the medication label indicates that the tablets contain furosemide USP 20 mg and are white, square tablets.
A nurse is preparing to administer nifedipine 20 mg PO three times a day. Available is nifedipine 10 mg capsules. How many capsules should the nurse administer per dose? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
To calculate the number of capsules to be administered, the nurse should divide the prescribed dose (20 mg) by the strength of the available medication (10 mg/capsule): 20 mg / 10 mg/capsule = 2 capsules.
A nurse is preparing to administer heparin 10,000 units subcutaneously every 8 hours. The available heparin injection is 20,000 units/mL. How many milliliters should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
To calculate the required mL of heparin injection per dose, we need to use the following formula: mL = (units per dose) ÷ (units per mL)
Substituting the given values in the formula, we get:
mL = (10,000 units) ÷ (20,000 units/mL) mL = 0.5 mL
A nurse is reinforcing teaching with a parent of an infant who has a prescription for amoxicillin 100 mg PO every 8 hours. The available amoxicillin suspension is 200 mg/5 mL. The nurse should tell the parent to administer how many teaspoons per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
To calculate the required teaspoons (tsp) of amoxicillin suspension per dose, we need to use the following
formula:
tsp = (dose in mg) ÷ (concentration in mg/mL) ÷ 5 mL per tsp Substituting the given values in the formula, we get:
tsp = (100 mg) ÷ (200 mg/5 mL) ÷ 5 mL per tsp
tsp = 0.5 tsp
A nurse is reviewing a new prescription for alendronate 70 mg PO once per week upon waking to be taken 30 min before food, fluids, or medication with a client who has osteoporosis. The client is to remain upright for 30 min after administration. How should the nurse interpret this prescription for the client?
Explanation
c) Choose the same day of each week to take this medication.
The nurse should interpret the prescription for alendronate 70 mg PO once per week upon waking to be taken 30 min before food, fluids, or medication with a client who has osteoporosis as instructing the client to choose the same day of each week to take the medication. This will help to ensure that the medication is taken consistently and at the appropriate time.
Taking the medication at 1800, 30 min after the evening meal (option A) is not consistent with the prescription, which specifies that the medication should be taken upon waking and before food, fluids, or other medications. Over-the-counter oral preparations can be taken with this medication (option B) is not accurate; the prescription specifies that alendronate should be taken 30 min before other medications. The client can return to bed after taking the medication, but before eating (option D) is not consistent with the prescription, which specifies that the client should remain upright for 30 min after administration.
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The correct answer is c. Choose the same day of each week to take this medication. Rationale for each choice: Choice a. Take the medication at 1800, 30 min after the evening meal. is incorrect.
Choice b. Over-the-counter oral preparations can be taken with this medication. is incorrect.
Choice d. The client can return to bed after taking the medication, but before eating. is incorrect.
Choice c. Choose the same day of each week to take this medication. is the correct interpretation of the prescription.
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A nurse is reinforcing teaching with a parent of an infant who has a prescription for amoxicillin 100 mg PO every 8 hours. The available amoxicillin suspension is 200 mg/5 mL. The nurse should tell the parent to administer how many teaspoons per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
To calculate the volume to be administered, the nurse should first divide the prescribed dose (100 mg) by the concentration of the available medication (200 mg/5 mL): 100 mg / (200 mg/5 mL) = 2.5 mL. Since there are 5 mL in a teaspoon, the parent should administer 2.5 mL / 5 mL/teaspoon = 0.5 teaspoons per dose.
A nurse is preparing to reconstitute amoxicillin/clavulanate oral suspension for a client. According to the medication label, what will the total volume of medication in the container be following reconstitution? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
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The correct answer and explanation is:
Explanation
According to the medication label, the total volume of medication in the container following reconstitution will be 75 mL.
The label states that when reconstituted, the total volume of the medication will be 75 mL.
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