Exam Mode Assessment

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No.

1 : A nurse is preparing to administer pentamidine 4 mg/kg 1M to a client who weighs 154 lb. Available is pentamidine 100 mg/mL for injection. 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.)

Hint : Always convert pounds to kg .

Correct Answers:

Rationale :

Convert weight from pounds to kg: 154÷2.2=70 kg Calculate total dose:4×70=280 mg Calculate volume to administer: 280÷100=2.8mL

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2 : A nurse is preparing to administer hydrochlorothiazide 150 mg PO daily in 3 equally divided doses. Available is hydrochlorothiazide oral solution 50 mg/5 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.)

Hint : When dividing doses, ensure total daily dose matches prescription.

Correct Answers:

Rationale :

Find the dose per administration: 150÷3=50mg per dose Find the volume:(50mg)×(5mL/50mg)=5 mL

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3 : A nurse is preparing to administer morphine 7.5 mg subcutaneous. Available is morphine injection 10 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest hundredth. Use a leading zero if it applies. Do not use a trailing zero.)

Hint : For small doses, round to the hundredths place .

Correct Answers:

0.75

Rationale :

Use formula: Desired Dose /Available Dose× Volume.=mL to administer 7.5/10 ×1=0.75 mL

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4 : A nurse is preparing to administer cefazolin 250 mg via intermittent IV bolus every 8 hr. Available is cefazolin 500 mg vial. The package insert instructs to add 2 mL of sterile water to yield a concentration of 225 mg/mL and then add to 50 mL of 0.9% sodium chloride. How many mL of cefazolin should the nurse add to the 50 mL of 0.9% sodium chloride? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

Hint : Reconstitution math involves concentration per mL, so always double-check label instructions.

Correct Answers:

Rationale :

Set up proportion:225 mg/1 mL=250 mg/𝑋 mL X= 250/225=1.1 mL

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5 : A nurse is preparing to administer rifampin 20 mg/kg/day PO in two divided doses to a client who weighs 132 lb and has tuberculosis. The amount available is rifampin 150 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.)

Hint : Always check if the prescription is for the total daily dose or divided doses.

Correct Answers:

Rationale :

Convert weight to kg:132÷2.2=60 kg Calculate total daily dose:60×20=1200mg Divide into 2 doses:1200÷2=600 mg per dose 600÷150=4 capsules per dose

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6 : A nurse is preparing to administer 0.45% sodium chloride 2.5 L IV to infuse over 24 hr. 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.)

Hint : 1 L = 1000 mL.

Correct Answers:

2500

Rationale :

Convert liters to mL:2.5×1000=2500 mL

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7 : A nurse is obtaining a medication history from a client who reports taking 1 oz of magnesium hydroxide daily as a laxative. The nurse should identify that this dose equates to how many mL? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Hint : Memorize common conversions.

Correct Answers:

Rationale :

Use conversion:1 oz=30mL

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8 : A nurse is preparing to administer gentamicin 5 mg/kg via intermittent IV bolus to a client who weighs 210 lb. The amount available is gentamicin 10 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.)

Hint : Always round to the nearest whole number for IV bolus medications unless specified.

Correct Answers:

Rationale :

Convert weight to kg:210÷2.2=95.5kg Calculate dose:5×95.5=477.5 mg Calculate volume: 477.5÷10=47.8=48mL

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9 : A nurse is preparing to administer dextrose 5% in 0.45% sodium chloride 3 L IV to infuse over 24 hr. The nurse should set the IV pump to deliver how many mL/hr? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Hint : Total mL ÷ total hours = mL/hr

Correct Answers:

Rationale :

Convert liters to mL:3×1000=3000mL Divide by hours:3000÷24=125mL/hr

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10 : A nurse is preparing to administer enoxaparin 40 mg subcutaneous for prevention of deep vein thrombosis. Available is enoxaparin 100 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.)

Hint : Double-check dose calculations for anticoagulants to prevent bleeding complications.

Correct Answers:

Rationale :

Use formula:40/100=0.4 mL

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Total Questions: 10

Choose Different Exam !

RN ATI Adult Medical Surgical Dosage Calc

No.

1 : A nurse is preparing to administer pentamidine 4 mg/kg 1M to a client who weighs 154 lb. Available is pentamidine 100 mg/mL for injection. 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.)

3 : A nurse is preparing to administer morphine 7.5 mg subcutaneous. Available is morphine injection 10 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest hundredth. Use a leading zero if it applies. Do not use a trailing zero.)

6 : A nurse is preparing to administer 0.45% sodium chloride 2.5 L IV to infuse over 24 hr. 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.)

9 : A nurse is preparing to administer dextrose 5% in 0.45% sodium chloride 3 L IV to infuse over 24 hr. The nurse should set the IV pump to deliver how many mL/hr? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

10 : A nurse is preparing to administer enoxaparin 40 mg subcutaneous for prevention of deep vein thrombosis. Available is enoxaparin 100 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.)

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