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Order: Ampicillin (Principen) 150 mg PO every 6 hours

Available: Ampicillin (Principen) 125mg per 5 ml

How many mL of ampicillin are needed for one dose?

( Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero. TYPE THE ANSWER ONLY, no label )
Answer and Explanation

The Correct Answer is ["6"]

To calculate the amount of ampicillin needed for one dose, we need to use a proportion. We can set up the proportion as follows:

150 mg / x mL = 125 mg / 5 mL

We can cross-multiply and solve for x:

150 * 5 = 125 * x

750 = 125 * x

x = 750 / 125

x = 6

Therefore, we need 6 mL of ampicillin for one dose


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Related Questions

Correct Answer is ["20"]

Explanation

To administer the ordered dose of furosemide (Lasix) 20mg, you need to calculate the amount of mL required from the available solution. The available solution has a concentration of 2 mg/2 mL, which means that for every 2 mL of solution, there are 2 mg of furosemide. To find the amount of mL needed to deliver 20 mg of furosemide, you can use the following formula:

mL = (ordered dose / available dose) x available volume

Plugging in the values, we get:

mL = (20 mg / 2 mg) x 2 mL

mL = 10 x 2 mL

mL = 20 mL

Therefore, you need to administer 20 mL of the available solution to give the patient 20 mg of furosemide.

Correct Answer is C

Explanation

A. Skin fold:

This may not be the best choice in this situation because the skin fold might not provide an accurate reading, especially if the hands are edematous.

B. Toe:

While the toe is a common site for pulse oximetry, in a patient with bilateral lower leg amputations, it might not be the most practical option. The nurse might face challenges in securing the pulse oximeter probe on the toe, and the accuracy of the reading could be affected.

C. Earlobe:

This is often a suitable alternative site for pulse oximetry when peripheral perfusion is compromised in the extremities. In this case, with bilateral lower leg amputations and edematous hands, applying the pulse oximeter probe to the earlobe is a good choice.

D. Finger:

In a patient with edematous hands, the finger might not be the best choice as the edema could affect the accuracy of the measurement. Additionally, if the patient has lower leg amputations, using the earlobe or another alternative site may be more appropriate.

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