Ati dosage calculation Rn fundamentals proctored assessment 3.2

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Question 1: View

A nurse is preparing to administer morphine 0.2 mg/kg IM to a client who weighs 99 lb. Available is morphine injection 10 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 given information:

Dose of morphine: 0.2 mg/kg

Weight of the client: 99 lb

Concentration of morphine injection: 10 mg/mL

Convert the client's weight from pounds to kilograms:

1 lb ≈ 0.453592 kg

Calculate the total dose of morphine in mg:

Total dose = Dose/kg x Weight (kg)

Substitute the values:

Total dose = 0.2 mg/kg x 99 lb x (0.453592 kg/1 lb)

Total dose ≈ 8.99 mg

Calculate the volume of morphine injection to be administered:

Volume = Total dose (mg) / Concentration (mg/mL)

Substitute the values:

Volume = 8.99 mg / 10 mg/mL

Volume ≈ 0.899 mL

Round the answer to the nearest tenth:

Volume ≈ 0.9 mL

Question 2: View

A nurse is preparing to administer digoxin 0.375 mg PO daily. Available is digoxin elixir 0.05 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 given information:

Dose of digoxin: 0.375 mg

Concentration of digoxin elixir: 0.05 mg/mL

Calculate the volume of digoxin elixir to be administered:

Volume = Dose (mg) / Concentration (mg/mL)

Substitute the values:

Volume = 0.375 mg / 0.05 mg/mL

Volume = 7.5 mL

Question 3: View

A nurse is preparing to administer insulin glargine to a child who has type 1 diabetes mellitus. The client is to receive 10 units subcutaneous once daily at bedtime. Reading the label on the unopened vial, the nurse should determine that the vial contains how many doses of this medication? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Explanation

Step 1: Identify the given information:

Concentration of insulin glargine: 100 units/mL

Volume of the vial: 10 mL

Step 2: Calculate the total number of units in the vial:

Total units = Concentration (units/mL) x Volume (mL)

Step 3: Substitute the values:

Total units = 100 units/mL x 10 mL

Step 4: Calculate the result:

Total units = 1000 units

Step 5: Calculate the number of doses:

Number of doses = Total units / Dose per dose

Step 6: Substitute the values:

Number of doses = 1000 units / 10 units/dose

Step 7: Calculate the result:

Number of doses = 100 doses

Question 4: View

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

Identify the given information:

Dose of nifedipine: 20 mg

Concentration of nifedipine capsules: 10 mg/capsule

Calculate the number of capsules to be administered:

Number of capsules = Dose (mg) / Concentration (mg/capsule)

Substitute the values:

Number of capsules = 20 mg / 10 mg/capsule

Number of capsules = 2 capsules

Question 5: View

A nurse is preparing to administer quinapril 20 mg PO. Available is quinapril 40 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

Identify the given information:

Dose of quinapril: 20 mg

Concentration of quinapril tablets: 40 mg/tablet

Calculate the number of tablets to be administered:

Number of tablets = Dose (mg) / Concentration (mg/tablet)

Substitute the values:

Number of tablets = 20 mg / 40 mg/tablet

Number of tablets = 0.5 tablets

Question 6: View

A nurse is preparing to administer lidocaine 200 mg IM stat and repeat in 60 min. Available is lidocaine injection 300 mg/3 mL. 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

Identify the given information:

Dose of lidocaine: 200 mg

Concentration of lidocaine injection: 300 mg/3 mL

Calculate the concentration in mg/mL:

Concentration = 300 mg / 3 mL = 100 mg/mL

Calculate the volume of lidocaine injection to be administered:

Volume = Dose (mg) / Concentration (mg/mL)

Substitute the values:

Volume = 200 mg / 100 mg/mL

Volume = 2 mL

Question 7: View

A nurse is preparing to administer metronidazole 7.5 mg/kg PO to a client who weighs 146.7 lb. Available is metronidazole 500 mg tablets. How many tablets 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 given information:

Dose of metronidazole: 7.5 mg/kg

Weight of the client: 146.7 lb

Concentration of metronidazole tablets: 500 mg/tablet

Convert the client's weight from pounds to kilograms:

1 lb ≈ 0.453592 kg

Calculate the total dose of metronidazole in mg:

Total dose = Dose/kg x Weight (kg)

Substitute the values:

Total dose = 7.5 mg/kg x 146.7 lb x (0.453592 kg/1 lb)

Total dose ≈ 498.5 mg

Calculate the number of tablets to be administered:

Number of tablets = Total dose (mg) / Concentration (mg/tablet)

Substitute the values:

Number of tablets = 498.5 mg / 500 mg/tablet

Number of tablets ≈ 0.997

Round the answer to the nearest whole number:

Number of tablets ≈ 1 tablet

Question 8: View

A nurse is preparing to administer bumetanide 1.5 mg PO daily. Available is bumetanide 0.5 mg tablets. How many tablets 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 given information:

Dose of bumetanide: 1.5 mg

Concentration of bumetanide tablets: 0.5 mg/tablet

Calculate the number of tablets to be administered:

Number of tablets = Dose (mg) / Concentration (mg/tablet)

Substitute the values:

Number of tablets = 1.5 mg / 0.5 mg/tablet

Number of tablets = 3 tablets

Question 9: View

A nurse is preparing to administer sumatriptan 6 mg subcutaneous to a client. Available is sumatriptan injection 6 mg/0.5 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 given information:

Dose of sumatriptan: 6 mg

Concentration of sumatriptan injection: 6 mg/0.5 mL

Calculate the volume of sumatriptan injection to be administered:

Volume = Dose (mg) / Concentration (mg/mL)

Substitute the values:

Volume = 6 mg / (6 mg/0.5 mL)

Volume = 0.5 mL

Question 10: View

A nurse is preparing to administer haloperidol 3 mg IM. Available is haloperidol injection 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

Identify the given information:

Dose of haloperidol: 3 mg

Concentration of haloperidol injection: 5 mg/mL

Calculate the volume of haloperidol injection to be administered:

Volume = Dose (mg) / Concentration (mg/mL)

Substitute the values:

Volume = 3 mg / 5 mg/mL

Volume = 0.6 mL

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