Question

A nurse is preparing to administer quinine 25 mg/kg/day PO divided in equal doses every 8 hr to a school-age child who weighs 36 lb. Available is quinine 325 mg tablets. 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.)

Answer 1

Correct Answers:

0

Rationale :

Formula:

Dose = (Weight in kg × Dose per kg) ÷ Number of doses/day

Given:

🔻Weight = 36 lb → 16.36 kg

🔻Dose = 25 mg/kg/day divided q8hr → 3 doses

🔻 Tablet = 325 mg

Calculation:

🔻Total dose/day = 16.36 × 25 = 409 mg

🔻 Dose per dose = 409 ÷ 3 = 136.33 mg

🔻 Tablets = 136.33 ÷ 325 = 0.42

→ 0 tablets

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Answer 2

Correct Answers:

1.1

Rationale :

Formula:

Dose = Weight in kg × Dose per kg; Volume = Dose ÷ Concentration

Given:

✔️ Weight = 71 lb → 32.27 kg

✔️ Dose = 10 mcg/kg

✔️Concentration = 300 mcg/mL

Calculation:

Dose = 32.27 × 10 = 322.7 mcg

Volume = 322.7 ÷ 300

👉= 1.1 mL

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Answer 3

Correct Answers:

1.9

Rationale :

Formula:

Dose = (Weight in kg × Daily dose/kg) ÷ Doses/day; Volume = Dose ÷ Concentration

Given:

✓ Weight = 50 lb → 22.73 kg

✓ Dose = 100 mg/kg/day ÷ 4 doses

✓ Concentration = 300 mg/mL

Calculation:

✓ Total daily dose = 22.73 × 100 = 2,273 mg

✓ Dose per dose = 2,273 ÷ 4 = 568.25 mg

✓ Volume = 568.25 ÷ 300

👉= 1.9 mL

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Answer 4

Correct Answers:

2

Rationale :

Formula:

Dose = (Weight × Daily dose per kg) ÷ Number of doses

Given:

🔻Weight = 40 kg

🔻 Dose = 0.15 mg/kg/day ÷ 3 doses

Calculation:

🔻Total dose/day = 40 × 0.15 = 6 mg

🔻 Dose per dose = 6 ÷ 3

👉 = 2 mg

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Answer 5

Correct Answers:

850

Rationale :

Formula:

mg = g × 1,000

Given:

✔️ Dose = 0.85 g

Calculation:

✔️ 0.85 × 1000

👉= 850 mg

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Answer 6

Correct Answers:

3

Rationale :

Formula:

✔️Required capsules = Dose ÷ Available concentration

Order: Pancrelipase 12,600 units

Available: 4,200 units/capsule

Calculation:

✔️12,600 ÷ 4,200

👉= 3 capsules

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Answer 7

Correct Answers:

0.042

Rationale :

Formula:

Grams = Milligrams ÷ 1,000

Given:

🔺 Dose = 42 mg

Calculation:

🔺 42 ÷ 1,000

👉= 0.042 g

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Answer 8

Correct Answers:

30

Rationale :

Formula:

Weight (kg) = Weight (lb) ÷ 2.2

Total daily dose = Dose × Weight (kg)

Dose per dose = Total daily dose ÷ 2

Volume = Ordered dose ÷ Concentration × mL

Given:

☑️ Weight = 66 lb → 30 kg

☑️ Dose = 0.2 mg/kg/day

☑️ Doses/day = 2

☑️ Concentration = 0.5 mg/5 mL

Calculation:

☑️ 0.2 × 30 = 6 mg/day

☑️ 6 ÷ 2 = 3 mg/dose

☑️ (3 ÷ 0.5) × 5

👉= 30 mL

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Answer 9

Correct Answers:

13

Rationale :

Formula:

Volume = (Ordered dose ÷ Concentration) × mL

Given:

↪ Dose = 400 mg

↪ Concentration = 160 mg/5 mL

Calculation:

↪ (400 ÷ 160) × 5 = 12.5 mL → Rounded

👉= 13 mL

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Answer 10

Correct Answers:

4.4

Rationale :

Formula:

Weight (kg) = Weight (lb) ÷ 2.2

Total daily dose = Dose × Weight

Dose per dose = Total ÷ Frequency

Volume = (Dose ÷ Concentration) × mL

Given:

⇨ Weight = 16 lb → 7.27 kg

⇨ Dose = 30 mg/kg/day

⇨ Doses/day = 2

⇨ Concentration = 125 mg/5 mL

Calculation:

⇨ 30 × 7.27 = 218.1 mg/day

⇨ 218.1 ÷ 2 = 109 mg/dose

⇨ (109 ÷ 125) × 5 = 4.36 mL → Rounded

= 4.4 mL

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QLexNursing

2 :
A nurse is preparing to administer filgrastim 10 mcg/kg subcutaneous to a child who weighs 71 lb. Available is filgrastim injection 300 mcg/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.)

5 :
A nurse is preparing to administer magnesium hydroxide 0.85 g PO to a school-age child. 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.)

7 :
A nurse is preparing to administer fluconazole 42 mg PO to an infant. The nurse should recognize that this is equivalent to how many g? (Round the answer to the nearest thousandth. Use a leading zero if it applies. Do not use a trailing zero.)

9 :
A nurse is preparing to administer acetaminophen 400 mg PO to an adolescent. Available is acetaminophen liquid 160 mg/5 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.)

QLexNursing

2 : A nurse is preparing to administer filgrastim 10 mcg/kg subcutaneous to a child who weighs 71 lb. Available is filgrastim injection 300 mcg/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.)

5 : A nurse is preparing to administer magnesium hydroxide 0.85 g PO to a school-age child. 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.)

7 : A nurse is preparing to administer fluconazole 42 mg PO to an infant. The nurse should recognize that this is equivalent to how many g? (Round the answer to the nearest thousandth. Use a leading zero if it applies. Do not use a trailing zero.)

9 : A nurse is preparing to administer acetaminophen 400 mg PO to an adolescent. Available is acetaminophen liquid 160 mg/5 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.)

2 :
A nurse is preparing to administer filgrastim 10 mcg/kg subcutaneous to a child who weighs 71 lb. Available is filgrastim injection 300 mcg/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.)

5 :
A nurse is preparing to administer magnesium hydroxide 0.85 g PO to a school-age child. 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.)

7 :
A nurse is preparing to administer fluconazole 42 mg PO to an infant. The nurse should recognize that this is equivalent to how many g? (Round the answer to the nearest thousandth. Use a leading zero if it applies. Do not use a trailing zero.)

9 :
A nurse is preparing to administer acetaminophen 400 mg PO to an adolescent. Available is acetaminophen liquid 160 mg/5 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.)