A nurse is preparing to administer furosemide 40 mg IV. Available is furosemide 10 mg/1 mL. How many ml should the nurse administer per dose?

A. A client who has a calcium of 9.3 mg/dL - This calcium level is within the normal range (8.5-10.2 mg/dL) and does not indicate hypoparathyroidism.

B. A client who has a phosphate of 5.7 mg/dL - An elevated phosphate level is a manifestation of hypoparathyroidism. In hypoparathyroidism, there is a decrease in parathyroid hormone (PTH) production, which leads to decreased calcium absorption and increased phosphate levels.

C. A client who has a vitamin D of 25 ng/mL - This vitamin D level is within the normal range and does not specifically indicate hypoparathyroidism.

D. A client who has a magnesium of 1.8 mg/dL - This magnesium level is within the normal range and does not specifically indicate hypoparathyroidism.

Step 1: Convert the Prescribed Dose to Milligrams

The prescribed dose is 0.4 grams (g), but the medication strength is in milligrams (mg). We need to use the same unit for both.

• There are 1000 mg in 1 g.

• To convert 0.4 g to mg, we multiply by 1000.

• 0.4×1000=400

• The prescribed dose is 400 mg.

Step 2: Calculate the Volume (in mL) Needed for the Dose

We know that 5 mL of the syrup contains 100 mg of medication. We need to find out how many mL are needed for 400 mg.

• To find out how many groups of 100 mg are in 400 mg, we divide:

• 400÷100=4

• This means we need 4 times the volume of syrup that contains 100 mg.

• The volume for 100 mg is 5 mL. So, we multiply 4 by 5 mL.

• 4×5mL=20mL

• The total volume needed per dose is 20 mL.

Step 3: Convert the Volume to Teaspoons

The measuring spoon is in teaspoons (tsp). We need to convert 20 mL to teaspoons.

• There are 5 mL in 1 teaspoon.

• To find out how many teaspoons are in 20 mL, we divide 20 by 5.

• 20÷5=4

• The dose is 4 teaspoons.

The nurse will instruct the client to take 4 teaspoons.

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