Question

A nurse is preparing to administer ketorolac 30 mg 1M for a loading dose. Available is ketorolac injection 15 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.)

Answer 1

Correct Answers:

2

Rationale :

✍️Formula

✅Desired ÷ Available × Volume.

✍️Ordered dose = 30 mg

✍️Available concentration = 15 mg/mL.

✍️Calculation: 30 mg/15 mg/mL

✅2 mL

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Answer 2

Correct Answers:

0.04

Rationale :

✍️Ordered dose = 10 mcg

✍️Available concentration = 250 mcg/mL.

✍️Calculation: 10/250

♦️0.04 mL

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Answer 3

Correct Answers:

2.5

Rationale :

✍️Convert the ordered dose 0.25 mg to micrograms:

✍️0.25 mg = 250 mcg to match tablet strength.

✍️The available tablet strength is 100 mcg/tablet

✍️Formula:

☑️Tablets=Desired (mcg)/Have (mcg/tab)

☑️250/100

☑️2.5 tabs

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Answer 4

Correct Answers:

1.5

Rationale :

✍️ Formula:

☑️Desired dose ÷ Tablet strength

✍️Ordered: 15 mg

✍️Available: 10 mg/tab

☑️15 mg ÷ 10 mg/tab

☑️1.5 tablets

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Answer 5

Correct Answers:

2

Rationale :

✍️ Formula:

✅Desired dose ÷ Final concentration

✍️Ordered: 500 mg

✍️Final concentration after reconstitution: 250 mg/mL

✅ 500 mg ÷ 250 mg/mL

✅2 mL

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Answer 6

Correct Answers:

0.8

Rationale :

✍️ Formula:

➡️Desired units ÷ Concentration (units/mL)

✍️Ordered: 8,000 units

✍️Available: 10,000 units/mL

➡️8,000 ÷ 10,000

➡️ 0.8 mL

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Answer 7

Correct Answers:

Fentanyl 25 mcg/hr transdermal patch.

Rationale :

🛑Transdermal fentanyl is indicated only for persistent, chronic pain in opioid-tolerant patients (e.g., taking ≥60 mg oral morphine equivalents daily for ≥1 week); using it in an opioid-naïve client can cause life-threatening respiratory depression.

🛑It is not appropriate for acute or postoperative pain because its onset is delayed (≈12–24 hr) and steady state is slow; it cannot be titrated rapidly for fast-changing pain.

🛑Before initiation, the nurse must verify opioid tolerance, indication, prior opioid regimen, and concurrent CYP3A4 inhibitors (which can raise fentanyl levels and toxicity).

🛑Safety specifics also need clarification/education: no external heat or fever (↑ absorption/overdose), remove old patch before applying a new one, and dispose of patches safely to prevent accidental exposure.

🛑Given the high potency and specialized use criteria, the nurse should contact the provider to confirm appropriateness and ensure the prescription aligns with patient status and guidelines.

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Answer 8

Correct Answers:

0.4

Rationale :

✍️Step 1 (kg):

♦️192 lb ÷ 2.2

♦️87.3 kg

✍️Step 2 (dose):

♦️120 units/kg × 87.3 kg

♦️10,476 units

✍️Step 3 (concentration):

⇒ 12,500 units/0.5 mL

⇒ 25,000 units/mL

✍️ Step 4 (mL):

♦️10,476 ÷ 25,000

♦️0.419 mL

→ 0.4 mL (nearest tenth)

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Answer 9

Correct Answers:

83

Rationale :

✍️ Formula:

🟢Total volume ÷ Time (hr)

✍️ Ordered: 1,000 mL over 12 hr

🟢1,000 ÷ 12

🟢83.3

→ 83 mL/hr (nearest whole)

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Answer 10

Correct Answers:

56

Rationale :

✍️ Step 1 (mL/hr):

✔️2,000 mL ÷ 12 hr

✔️166.7 mL/hr

✍️ Step 2 (gtt/min):

✔️(mL/hr × drop factor 20 gtt/mL) ÷ 60

✔️(166.7 × 20) ÷ 60

✔️ 55.6

→ 56 gtt/min (nearest whole)

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Dosage Calculation PN Adult Medical Surgical Proctored Assessment 3

No.

1 :
A nurse is preparing to administer ketorolac 30 mg 1M for a loading dose. Available is ketorolac injection 15 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.)

2 :
A nurse is preparing to administer exenatide 10 mcg subcutaneous every 12 hr. Available is exenatide 250 mcg/mL. 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.)

4 :
A nurse is preparing to administer prednisone 15 mg PO to a client who has rheumatoid arthritis. Available is prednisone 10 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.)

6 :
A nurse is preparing to administer heparin 8,000 units subcutaneous. Available is heparin 10,000 units/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.)

7 :
A nurse is reviewing medications prescribed for a client. For which of the following prescriptions should the nurse contact the provider for clarification?

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Dosage Calculation PN Adult Medical Surgical Proctored Assessment 3

No.

1 : A nurse is preparing to administer ketorolac 30 mg 1M for a loading dose. Available is ketorolac injection 15 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.)

2 : A nurse is preparing to administer exenatide 10 mcg subcutaneous every 12 hr. Available is exenatide 250 mcg/mL. 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.)

4 : A nurse is preparing to administer prednisone 15 mg PO to a client who has rheumatoid arthritis. Available is prednisone 10 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.)

6 : A nurse is preparing to administer heparin 8,000 units subcutaneous. Available is heparin 10,000 units/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.)

7 : A nurse is reviewing medications prescribed for a client. For which of the following prescriptions should the nurse contact the provider for clarification?

1 :
A nurse is preparing to administer ketorolac 30 mg 1M for a loading dose. Available is ketorolac injection 15 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.)

2 :
A nurse is preparing to administer exenatide 10 mcg subcutaneous every 12 hr. Available is exenatide 250 mcg/mL. 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.)

4 :
A nurse is preparing to administer prednisone 15 mg PO to a client who has rheumatoid arthritis. Available is prednisone 10 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.)

6 :
A nurse is preparing to administer heparin 8,000 units subcutaneous. Available is heparin 10,000 units/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.)

7 :
A nurse is reviewing medications prescribed for a client. For which of the following prescriptions should the nurse contact the provider for clarification?