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A nurse is preparing to administer potassium chloride elixir 20 mEq/day PO to divide equally every 12 hr. Available is 6.7 mEq/5 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 ["7.5 mL"]

To calculate the amount of potassium chloride elixir needed per dose, we can use the following formula:

Amount per dose (mL) = (Desired dose in mEq / Concentration in mEq/mL) * Volume in mL

Given:

Desired dose = 20 mEq/day divided equally every 12 hr = 10 mEq/dose

Concentration = 6.7 mEq/5 mL

Plugging in the values:

Amount per dose (mL) = (10 mEq / 6.7 mEq/5 mL) * 5 mL

Calculating:

Amount per dose (mL) ≈ 7.46 mL

Rounded to the nearest tenth, the nurse should administer approximately 7.5 mL of the potassium chloride elixir per dose.

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Correct Answer is D

Explanation

A. Taking an HMG CoA reductase inhibitor (commonly known as statins) is not directly associated with digoxin toxicity. Statins are used to lower cholesterol levels.
B. Having a 10-year history of COPD (chronic obstructive pulmonary disease) is not directly linked to an increased risk of digoxin toxicity.
C. Having a prolapsed mitral valve is a valvular disorder and is not a primary factor that contributes to digoxin toxicity.
D. Taking a high-ceiling diuretic
The factor that predisposes the client to develop digoxin toxicity is taking a high-ceiling diuretic.
Digoxin toxicity can be influenced by several factors. One important factor is the levels of potassium in the blood. High-ceiling diuretics, also known as loop diuretics (e.g., furosemide), can lead to potassium loss through increased urinary excretion. Low levels of potassium (hypokalemia) can increase the risk of digoxin toxicity, as digoxin has a greater effect on the heart when potassium levels are low.

A. The client has a negative sputum culture. B. The client tests negative for HIV. C. The client's liver function test results are within the expected reference range. D. The client has a positive purified protein derivative test

Correct Answer is A

Explanation

A. The client has a negative sputum culture.
When a client with tuberculosis is adhering to the prescribed medication regimen, their sputum cultures should show a decrease in the number of Mycobacterium tuberculosis bacteria. This indicates that the medication is effectively treating the infection. It's important for clients with tuberculosis to complete their full course of treatment to prevent drug-resistant strains of the bacteria from developing.
B. The client tests negative for HIV: This relates to a different infection (HIV) and doesn't necessarily reflect adherence to the tuberculosis medication regimen.
C. The client's liver function test results are within the expected reference range: While liver function tests are important to monitor due to potential medication side effects, they don't directly indicate medication adherence.
D. The client has a positive purified protein derivative (PPD) test: A positive PPD test indicates exposure to the tuberculosis bacteria in the past but does not reflect current adherence to treatment.

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A nurse is preparing to administer potassium chloride elixir 20 mEq/day PO to divide equally every 12 hr. Available is 6.7 mEq/5 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.)

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Naxlex Comprehensive Predictor Exams

A nurse is caring for a client who is taking digoxin to treat heart failure. Which of the following factors predisposes this client to develop digoxin toxicity?

Correct Answer is D

Explanation

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Correct Answer is A

Explanation

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