A nurse is preparing to administer digoxin at a dosage of 8 mcg/kg/day orally, divided equally every 12 hours, to a preschooler who weighs 33 lbs. Digoxin elixir is available at a concentration of 0.05 mg/mL. How many mL should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

Answer and Explanation

The Correct Answer is ["1.2"]

- Step 1: Identify the child's weight in pounds. The child weighs 33 lbs.

- Step 2: Convert the child's weight from pounds to kilograms. We know that 1 kg = 2.2 lbs. So, 33 lbs = 33 ÷ 2.2 kg. Calculating the division gives us approximately 15 kg.

- Step 3: Identify the prescribed dose in mcg/kg/day. The child is scheduled to receive 8 mcg/kg/day of digoxin, divided equally every 12 hours.

- Step 4: Calculate the total daily dose in mcg. We can do this by multiplying the child's weight in kg by the prescribed dose in mcg/kg:

- Total daily dose = 8 mcg/kg/day × 15 kg.

- Calculating the multiplication gives us: Total daily dose = 120 mcg/day.

- Step 5: Since the dose is divided equally every 12 hours, we divide the total daily dose by 2 to get the dose per administration:

- Dose per administration = Total daily dose ÷ 2.

- Dose per administration = 120 mcg ÷ 2.

- Calculating the division gives us: Dose per administration = 60 mcg.

- Step 6: Identify the concentration of the available solution. The available solution contains 0.05 mg/mL of digoxin. Convert this to mcg/mL for consistency with the dose per administration. We know that 1 mg = 1000 mcg. So, 0.05 mg = 0.05 × 1000 mcg = 50 mcg/mL.

- Step 7: Calculate the volume of solution needed to deliver the required dose. We can set up a proportion to solve for this:

- 50 mcg is to 1 mL as 60 mcg is to X mL.

- In other words, 50 mcg : 1 mL = 60 mcg : X mL.

- Step 8: Solve for X using cross-multiplication and division:

- Cross-multiplication gives us: 50 mcg × X mL = 60 mcg × 1 mL.

- Simplifying this gives us: 50X = 60.

- Dividing both sides by 50 gives us: X = 60 ÷ 50.

- Calculating the division gives us: X = 1.2.

Administer 1.2 mL of the digoxin elixir per dose.

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Free Nursing Study Resources

Correct Answer is ["A","B","C","D","E","F"]

Explanation

Choice A reason:Profuse vomiting with a fecal odor can occur in large bowel obstructions due to the backward flow of bowel contents.

Choice B reason:Epigastric abdominal distention is a common finding in bowel obstructions due to the accumulation of gas and fluids.

Choice C reason:Intermittent abdominal cramping results from the bowel's attempt to push contents through the obstructed area.

Choice D reason:Ribbon-like stools or diarrhea may occur if there is a partial obstruction allowing some contents to pass.

Choice E reason:Metabolic acidosis can develop due to the accumulation of lactic acid from tissue hypoxia and decreased perfusion.

Choice F reason:Severe fluid and electrolyte imbalance can result from vomiting and the inability to absorb fluids and nutrients properly.

A. Tape the connections on the client's chest tube. B. Position the client in a supine position. C. Strip the client's chest tube every 2 hours. D. Place the chest tube drainage system above the level of the client's heart.

Correct Answer is A

Explanation

Choice A reason:Taping the connections on the client's chest tube is essential to maintain a closed system and prevent air leaks, which could lead to a pneumothorax.

Choice B reason:Positioning the client in a supine position is not recommended as it may not facilitate optimal drainage from the pleural space.

Choice C reason:Stripping the chest tube, which involves applying pressure and sliding the fingers down the tube to remove clots, is not routinely recommended as it can generate high negative pressures and damage lung tissue.

Choice D reason: The chest tube drainage system should be placed below the level of the client's heart to allow for gravity drainage of pleural fluid and air.

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Naxlex Comprehensive Predictor Exams

A client presents with a possible bowel obstruction, and the nurse completes a detailed abdominal assessment. Which of the following clinical manifestations are consistent with a large bowel obstruction? (Select all that apply).

Correct Answer is ["A","B","C","D","E","F"]

Explanation

A nurse is caring for a client who has a chest tube. Which of the following actions should the nurse take?

Correct Answer is A

Explanation

A nurse is reviewing the arterial blood gas (ABG) values of a client who has chronic kidney disease. Which of the following sets of values should the nurse expect?

A nurse is assessing a client who has left-sided heart failure. Which of the following clinical manifestations will the nurse expect?

The nurse is monitoring a client who just finished a meal for vasomotor manifestations of dumping syndrome. Which of the following findings indicate this occurrence?

A client is being admitted to the emergency department with a possible dissecting abdominal aortic aneurysm. Which of the following clinical manifestations are not signs and symptoms of hypovolemic shock?

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