A nurse is preparing to administer phenytoin 75 mg PO. Avail... | Custom- PNE 162 Mental Health Exam 1 Collab

Practice Question

A nurse is preparing to administer phenytoin 75 mg PO. Available is phenytoin suspension 25 mg/S 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 Choices:

A. 15 ✓ Correct Answer

Correct Answer:

Rationale:

🧪 To solve this dosage calculation, use the formula:

Dose to give (mL)=Desired dose (mg)Available concentration (mg/mL)

🧪 Step 1: Plug in the values

Desired dose = 75 mg
Available concentration = 25 mg / 5 mL

🧪 First, calculate how many mg are in 1 mL:

25 mg÷5 mL=5 mg/mL25

🧪 Step 2: Calculate mL to give

75 mg÷5 mg/mL=15 mL

🧪 Answer: 15 mL

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Custom- PNE 162 Mental Health Exam 1 Collab

34 Questions

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Question Details

Category: LPN - Nursing Exam(s)
Subcategory: ATI Exams
Domain: MENTAL HEALTH/PSYCHIATRIC PN
Answer Choices: 1

NursingSprint

Practice Question

A nurse is preparing to administer phenytoin 75 mg PO. Available is phenytoin suspension 25 mg/S 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.)

Correct Answer:

Rationale:

Dose to give (mL)=Desired dose (mg)Available concentration (mg/mL)

🧪 Step 1: Plug in the values

25 mg÷5 mL=5 mg/mL25

Want to practice more questions like this?

More Questions from This Exam

A nurse is caring for a client in the emergency department.

A nurse working in a mental health facility is admitting a client.

A nurse is reinforcing discharge teaching with a client who has several new prescriptions for psychotropic medications. The client tells the nurse that she has always had trouble following a medication regimen. Which of the following responses should the nurse make?

A nurse is assisting with a conflict-resolution group for adolescent clients in a community clinic facility. Which of the following clients should the nurse identify as being the highest risk for a suicide attempt?

A nurse in a mental health clinic is assisting in the care of a client.

From Exam

Custom- PNE 162 Mental Health Exam 1 Collab

Question Details

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Practice Question

A nurse is preparing to administer phenytoin 75 mg PO. Available is phenytoin suspension 25 mg/S 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.)

Correct Answer:

Rationale:

Dose to give (mL)=Desired dose (mg)Available concentration (mg/mL)

​🧪 Step 1: Plug in the values

25 mg÷5 mL=5 mg/mL25

Want to practice more questions like this?

More Questions from This Exam

A nurse is caring for a client in the emergency department.

A nurse working in a mental health facility is admitting a client.

A nurse is reinforcing discharge teaching with a client who has several new prescriptions for psychotropic medications. The client tells the nurse that she has always had trouble following a medication regimen. Which of the following responses should the nurse make?

A nurse is assisting with a conflict-resolution group for adolescent clients in a community clinic facility. Which of the following clients should the nurse identify as being the highest risk for a suicide attempt?

A nurse in a mental health clinic is assisting in the care of a client.

From Exam

Custom- PNE 162 Mental Health Exam 1 Collab

Question Details

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🧪 Step 1: Plug in the values