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A nurse is preparing to administer potassium glucose 40 mEq PO. Available is potassium gluconate liquid 20 mEq/15 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 and Explanation

The Correct Answer is ["30"]

Understanding the Problem

Order: Potassium gluconate 40 mEq PO

Available Solution: Potassium gluconate liquid 20 mEq/15 mL

Desired Dose: mL to administer

 

Step 1: Set Up the Calculation

We need to find the volume (in mL) that contains the ordered dose (40 mEq). We can do this by setting up a proportion or using the formula:

Volume (mL) = (Ordered Dose (mEq) / Concentration (mEq/mL))

 

Step 2: Determine the Concentration

Available Concentration: 20 mEq / 15 mL

 

Step 3: Perform the Calculation

Ordered Dose: 40 mEq

Concentration: 20 mEq / 15 mL

Volume: (40 mEq) / (20 mEq / 15 mL) = (40 mEq X 15 mL) / 20 mEq

 

We can simplify this by dividing 40 by 20:

Volume: (2 X 15 mL) = 30 mL

 

Step 4: Round to the Nearest Whole Number

The result is 30 mL, which is already a whole number.

 

Answer: 30 mL


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Related Questions

Correct Answer is ["38"]

Explanation

Identify the Given Information:

Infusion Rate: 150 mL/hr

Drop Factor: 15 gtt/mL

Convert the Infusion Rate to mL/min:

There are 60 minutes in 1 hour.

Infusion Rate (mL/min) = 150 mL/hr / 60 min/hr

Infusion Rate (mL/min) = 2.5 mL/min

Calculate the Drip Rate (gtt/min):

Drip Rate (gtt/min) = Infusion Rate (mL/min) x Drop Factor (gtt/mL)

Drip Rate (gtt/min) = 2.5 mL/min x 15 gtt/mL

Drip Rate (gtt/min) = 37.5 gtt/min

Round to the Nearest Whole Number:

38 gtt/min

Correct Answer is C

Explanation

A. A total 62.5 mL is available in this dose: The label states that each mL of the reconstituted solution contains 62.5 mg of methylprednisolone. However, the total volume available depends on the reconstitution process, and this option does not directly match the provided information.

B. This medication can be administered IM only: The label clearly states that the medication can be given both intramuscularly (IM) and intravenously (IV), making this option incorrect.

C. This medication should be protected from light: The label explicitly instructs to protect the medication from light, confirming this as the correct answer.

D. The medication is effective for 7 days after reconstitution: The label specifies that the medication should be used within 48 hours after reconstitution, not 7 days.

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