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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Free Nursing Study Resources

Correct Answer is ["0.4"]

Explanation

Identify the Desired Dose and Available Concentration:

Desired Dose: 0.4 mg of naloxone

Available Concentration: 1 mg/mL (This means there is 1 mg of naloxone in every 1 mL of solution)

Set up the Calculation:

We need to find the volume (in mL) that contains the desired dose of 0.4 mg.

We can use the following formula:

Volume (mL) = Desired Dose (mg) / Available Concentration (mg/mL)

Plug in the Values and Calculate:

Volume (mL) = 0.4 mg / 1 mg/mL

Volume (mL) = 0.4 mL

Round to the Nearest Tenth (if necessary):

0.4 mL

A. Digoxin 25 mcg/kg via IV bolus every 8 hr x 2 doses B. Dobutamine 15 mcg/kg via continuous IV infusion C. Bumetanide 0.1 mg/kg via IV bolus every 12 hr D. Dextrose 5% in 0.45% sodium chloride with 20 mEq KCl via continuous V Infusion at 50 mL/hr

Correct Answer is A

Explanation

A) Digoxin 25 mcg/kg via IV bolus every 8 hr x 2 doses: This prescription should be clarified. Digoxin is typically prescribed in micrograms (mcg), but the dose of 25 mcg/kg is very high and could lead to toxicity. For a client with heart failure, the usual dosage for digoxin is 0.125–0.25 mg daily, not 25 mcg/kg per dose, which is excessive and potentially dangerous. Therefore, this order should be clarified with the provider.

B) Dobutamine 15 mcg/kg via continuous IV infusion: This is an appropriate dose for dobutamine, which is commonly used in heart failure for its inotropic effects. Dobutamine is typically dosed between 2–20 mcg/kg/min for continuous IV infusion, so 15 mcg/kg/min is within a safe range.

C) Bumetanide 0.1 mg/kg via IV bolus every 12 hr: Bumetanide is a loop diuretic used in heart failure, and the prescribed dose of 0.1 mg/kg every 12 hours is an appropriate dosing regimen for this medication. It is within the typical dosing range, and the interval is also reasonable for managing fluid overload in heart failure.

D) Dextrose 5% in 0.45% sodium chloride with 20 mEq KCl via continuous IV infusion at 50 mL/hr: This IV fluid prescription is generally appropriate. The combination of dextrose and sodium chloride with potassium is commonly used to maintain hydration and electrolyte balance in clients, particularly in the context of heart failure management. The infusion rate of 50 mL/hr is a typical rate for continuous IV infusions.

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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.)

Nursing Test Bank

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Correct Answer is ["0.4"]

Explanation

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