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An adult client with myasthenia gravis is receiving pyridostigmine (Mestinon) 126 mg PO every 4 hours. The drug is available as 60 mg in 5 ml syrup. How many ml should the nurse administer? (If rounding is required, round to the nearest tenth.)

Answer and Explanation

The Correct Answer is ["10.5"]

To calculate the volume of pyridostigmine to be administered, we can use the following formula:

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

However, the concentration is given in mg/5 mL. We need to convert it to mg/mL:

Concentration (mg/mL) = 60 mg / 5 mL = 12 mg/mL

Now, plug in the given values into the formula:

Volume (mL) = 126 mg / 12 mg/mL

Volume (mL) = 10.5 mL

Therefore, the nurse should administer 10.5 mL of pyridostigmine syrup.

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Correct Answer is ["2"]

Explanation

Calculating the Ferrous Fumarate Dose

Problem: Administer ferrous fumarate 3 mg/kg/day PO three times daily to an 88-pound child. The available concentration is 100 mg/5 mL.

Steps:

Convert pounds to kilograms:

88 pounds x (1 kg / 2.20462 pounds) ≈ 39.9 kg

Calculate the daily dose:

3 mg/kg/day x 39.9 kg = 119.7 mg/day

Calculate the dose per administration (TID):

119.7 mg/day / 3 doses = 39.9 mg/dose

Set up a proportion:

We want to find the number of milliliters (mL) needed.

We know the desired dose (39.9 mg) and the concentration of the medication (100 mg/5 mL).

Proportion:

x mL / 39.9 mg = 5 mL / 100 mg

Cross-multiply:

100x = 199.5

Solve for x:

x = 199.5 / 100

x ≈ 2

Answer: The child should receive approximately 2 mL of ferrous fumarate oral suspension for each dose.

Correct Answer is ["1"]

Explanation

To calculate the number of capsules needed, we'll first convert grams to milligrams:

0.1 grams x 1000 mg/gram = 100 mg

Then, we can set up a proportion:

x capsules / 100 mg = 1 capsule / 100 mg

Cross-multiplying:

100x = 100

Solving for x:

x = 100 / 100

x = 1

Therefore, the nurse should administer 1 capsule of Dantrolene.

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An adult client with myasthenia gravis is receiving pyridostigmine (Mestinon) 126 mg PO every 4 hours. The drug is available as 60 mg in 5 ml syrup. How many ml should the nurse administer? (If rounding is required, round to the nearest tenth.)

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

An 88 pound child with iron deficiency anemia has been prescribed ferrous fumarate 3 mg/kg/day PO three times daily. The medication is available in oral suspension of 100 mg/5 ml. The nurse is instructing the mother in measuring the correct dose. How many ml should the child receive for each dose?

Correct Answer is ["2"]

Explanation

A client with multiple sclerosis is prescribed Dantrolene (Dantrium) 0.1 grams PO bid for spasticity. Dantrolene is available in 100 mg capsules. How many capsules should the nurse administer? (Enter numeric value only.)

Correct Answer is ["1"]

Explanation

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