Question

A nurse is preparing to administer amoxicillin 30 mg/kg/day divided equally every 12 hr to a toddler who weighs 33 lb. Available is amoxicillin 200 mg/5 mL suspension. How many mL 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.)

Answer 1

Correct Answers:

5.6

Rationale :

Given:

⁕ Weight = 33 lb

⁕ Prescription = 30 mg/kg/day

⁕ Frequency = every 12 hr = 2 doses/day

⁕ Available = 200 mg/5 mL

✳️ Convert pounds to kilograms:

⁕ 33 ÷ 2.2 = 15 kg

✳️ Calculate total daily dose:

⁕ 30 mg × 15 kg = 450 mg/day

✳️ Calculate dose every 12 hours:

⁕ 450 mg ÷ 2 = 225 mg/dose

✳️ Formula:

⁕ Desired dose ÷ Dose on hand × Volume = mL to administer

✳️ Substitute:

⁕ 225 mg ÷ 200 mg × 5 mL = 5.625 mL

✳️ Round to the nearest tenth:

= 5.6 mL

Distractor Analysis :

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Answer 2

Correct Answers:

0.2

Rationale :

Given:

> Desired dose = 2 mg

> Available dose = 10 mg/mL

🖊️ Formula:

> Desired dose ÷ Dose on hand × Volume = mL to administer

🖊️ Substitute:

> 2 mg ÷ 10 mg × 1 mL

= 0.2 mL

Distractor Analysis :

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Answer 3

Correct Answers:

8

Rationale :

Given:

→ Desired dose = 400 mg

→ Available = 250 mg/5 mL

👉 Formula:

→ Desired dose ÷ Dose on hand × Volume = mL to administer

👉 Substitute:

→ 400 mg ÷ 250 mg × 5 mL

= 8 mL

Distractor Analysis :

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Answer 4

Correct Answers:

0.5

Rationale :

Given:

» Desired dose = 1 mg

» Available = 1 mg/0.5 mL

♦️ Formula:

» Desired dose ÷ Dose on hand × Volume = mL to administer

♦️ Substitute:

» 1 mg ÷ 1 mg × 0.5 mL

= 0.5 mL

Distractor Analysis :

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Answer 5

Correct Answers:

100

Rationale :

Given:

✓ Total volume = 50 mL

✓ Infusion time = 30 min

🖍️ Convert minutes to hours:

✓ 30 min ÷ 60 min = 0.5 hr

🖍️ Formula:

✓ mL/hr = Total volume ÷ Time in hours

🖍️ Substitute:

✓ 50 mL ÷ 0.5 hr

= 100 mL/hr

Distractor Analysis :

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Answer 6

Correct Answers:

75

Rationale :

Given:

⁕ Volume = 100 mL

⁕ Infusion time = 20 min

⁕ Drop factor = 15 gtt/mL

🔆 Formula:

⁕ gtt/min = Volume (mL) × Drop factor (gtt/mL) ÷ Time (min)

🔆 Substitute:

⁕ 100 mL × 15 gtt/mL ÷ 20 min

🔆 Calculate:

⁕ 1,500 ÷ 20

= 75 gtt/min

Distractor Analysis :

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Answer 7

Correct Answers:

4

Rationale :

Given:

✓ Desired dose = 320 mg

✓ Available = 400 mg/5 mL

✍️ Formula:

✓ Desired dose ÷ Dose on hand × Volume = mL to administer

✍️ Substitute:

✓ 320 mg ÷ 400 mg × 5 mL

= 4 mL

Distractor Analysis :

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Answer 8

Correct Answers:

2

Rationale :

Given:

🤎 Desired dose = 300 mg

🤎 Available = 150 mg/capsule

✏️ Formula:

🤎 Desired dose ÷ Dose on hand = Number of capsules

✏️ Substitute:

🤎 300 mg ÷ 150 mg

= 2 capsules

Distractor Analysis :

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Answer 9

Correct Answers:

3

Rationale :

Given:

» Desired dose = 30 mg

» Available = 10 mg/tablet

🌻 Formula:

» Desired dose ÷ Dose on hand = Number of tablets

🌻 Substitute:

» 30 mg ÷ 10 mg

= 3 tablets

Distractor Analysis :

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Answer 10

Correct Answers:

4

Rationale :

Given:

♥️ Desired dose = 1.6 mg

♥️ Available = 2 mg/5 mL

Formula:

♥️ Desired dose ÷ Dose on hand × Volume = mL to administer

Substitute:

♥️ 1.6 mg ÷ 2 mg × 5 mL

= 4 mL

Distractor Analysis :

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QLexNursing

2 :
A nurse is preparing to administer morphine sulfate 2 mg IV bolus. Available is morphine sulfate 10 mg/mL. How many mL 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.)

3 :
A nurse is preparing to administer valproic acid 400 mg PO bid for migraine headaches. Available is valproic acid 250 mg/5mL. 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.)

4 :
A nurse is preparing to administer 1 mg vitamin K to a newborn. The medication is available in 1 mg/0.5 mL. How much should the nurse administer? (Round to the nearest tenth. Use a leading zero when applicable. Do not use a trailing zero.)

7 :
A nurse is preparing to administer amoxicillin 320 mg PO every 12 hr to an infant. The amount available is amoxicillin suspension 400 mg/5 mL. How many mL 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.)

8 :
A nurse is preparing to administer lithium 300 mg PO every 8 hr. Available is lithium carbonate 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.)

9 :
A nurse is preparing to administer fluoxetine 30 mg PO daily to a client. The amount available is fluoxetine 10 mg/tablet. How many tablets 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.)

10 :
A nurse is preparing to administer albuterol syrup 1.6 mg PO tid. Available is albuterol 2 mg/5mL. 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.)

QLexNursing

2 : A nurse is preparing to administer morphine sulfate 2 mg IV bolus. Available is morphine sulfate 10 mg/mL. How many mL 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.)

3 : A nurse is preparing to administer valproic acid 400 mg PO bid for migraine headaches. Available is valproic acid 250 mg/5mL. 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.)

4 : A nurse is preparing to administer 1 mg vitamin K to a newborn. The medication is available in 1 mg/0.5 mL. How much should the nurse administer? (Round to the nearest tenth. Use a leading zero when applicable. Do not use a trailing zero.)

7 : A nurse is preparing to administer amoxicillin 320 mg PO every 12 hr to an infant. The amount available is amoxicillin suspension 400 mg/5 mL. How many mL 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.)

8 : A nurse is preparing to administer lithium 300 mg PO every 8 hr. Available is lithium carbonate 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.)

9 : A nurse is preparing to administer fluoxetine 30 mg PO daily to a client. The amount available is fluoxetine 10 mg/tablet. How many tablets 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.)

10 : A nurse is preparing to administer albuterol syrup 1.6 mg PO tid. Available is albuterol 2 mg/5mL. 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.)

2 :
A nurse is preparing to administer morphine sulfate 2 mg IV bolus. Available is morphine sulfate 10 mg/mL. How many mL 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.)

3 :
A nurse is preparing to administer valproic acid 400 mg PO bid for migraine headaches. Available is valproic acid 250 mg/5mL. 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.)

4 :
A nurse is preparing to administer 1 mg vitamin K to a newborn. The medication is available in 1 mg/0.5 mL. How much should the nurse administer? (Round to the nearest tenth. Use a leading zero when applicable. Do not use a trailing zero.)

7 :
A nurse is preparing to administer amoxicillin 320 mg PO every 12 hr to an infant. The amount available is amoxicillin suspension 400 mg/5 mL. How many mL 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.)

8 :
A nurse is preparing to administer lithium 300 mg PO every 8 hr. Available is lithium carbonate 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.)

9 :
A nurse is preparing to administer fluoxetine 30 mg PO daily to a client. The amount available is fluoxetine 10 mg/tablet. How many tablets 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.)

10 :
A nurse is preparing to administer albuterol syrup 1.6 mg PO tid. Available is albuterol 2 mg/5mL. 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.)