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A doctor has ordered 600 mg of ibuprofen every 6 hours as needed for a patient for postsurgical pain. The tablets are available in 200 mg per tablet.
What is the maximum number of tablets the patient may have in 24 hours?

A.

6 tablets

B.

12 tablets

C.

4 tablets

D.

3 tablets

Answer and Explanation

The Correct Answer is B

To find the maximum number of tablets the patient may have in 24 hours, you need to calculate the following:

- The number of doses the patient may have in 24 hours using the formula: Number of doses = 24 hours / Dosing interval (hours)
- The total dose of ibuprofen in milligrams (mg) for 24 hours using the formula: Total dose (mg) = Number of doses x Prescribed dose (mg)
- The number of tablets of ibuprofen using the formula: Number of tablets = Total dose (mg) / Strength per tablet (mg)

First, use the formula for number of doses to find how many times the patient may take ibuprofen in 24 hours:

Number of doses = 24 hours / Dosing interval (hours)

Since the dosing interval is 6 hours, plug in this value into the formula:

Number of doses = 24 hours / 6 hours

Simplify and solve for the number of doses:

Number of doses = 4

Next, use the formula for total dose to find the amount of ibuprofen in milligrams for 24 hours:

Total dose (mg) = Number of doses x Prescribed dose (mg)

Since the number of doses is 4 and the prescribed dose is 600 mg, plug in these values into the formula:

Total dose (mg) = 4 x 600 mg

Simplify and solve for the total dose:

Total dose (mg) = 2400 mg

Then, use the formula for number of tablets to find how many tablets of ibuprofen are needed:

Number of tablets = Total dose (mg) / Strength per tablet (mg)

Since the total dose is 2400 mg and the strength per tablet is 200 mg, plug in these values into the formula:

Number of tablets = 2400 mg / 200 mg

Simplify and solve for the number of tablets:

Number of tablets = 12

Therefore, the maximum number of tablets the patient may have in 24 hours is **12**.
 


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Related Questions

Correct Answer is D

Explanation

To find the milliliters to administer, you need to use the formula for dosage calculation:


Volume (mL) = Dose ordered (mg) / Dose available (mg) x Volume available (mL)


Since the dose ordered is 275 mg, the dose available is 500 mg, and the volume available is 2 mL, plug in these values into the formula:


Volume (mL) = 275 mg / 500 mg x 2 mL


Simplify and solve for the volume:


Volume (mL) = 1.1 mL


Therefore, the nurse should administer **1.1 mL** of Primaxin to the patient.

Correct Answer is B

Explanation

This is another dosage calculation problem. To solve it, we need to use the formula:

Caloric need ÷ Calories per mL 1000 = Formula per day

In this case, the caloric need is 2250 calories, and the calories per mL is 2000/1000 = 2. Plugging these values into the formula, we get:

2250 ÷ 2 × 1000 = 1125

Therefore, the client would need **1125 mL** of formula per day to meet the calorie requirements.

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