A nurse is preparing to administer potassium chloride 20 mEq. The amount available is potassium chloride liquid 40 mEq/15 mL. How many mL should the nurse administer? (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"]

We can calculate the volume of potassium chloride solution to administer using the following steps:

Identify the prescribed dose: The nurse needs to administer 20 mEq of potassium chloride.

Identify the concentration of available solution: The potassium chloride liquid is available in a concentration of 40 mEq/15 mL. This means there are 40 milliequivalents (mEq) of potassium chloride in every 15 milliliters (mL) of the solution.

Set up a proportion to find the volume needed:

Desired dose (mEq) : Volume to administer (mL) = Concentration (mEq/mL)

Plug in the values:

20 mEq : Volume to administer (mL) = 40 mEq/15 mL

Solve for the volume:

To isolate the volume (mL), multiply both sides of the proportion by the volume unit (mL) and divide by the dose (mEq).

Volume to administer (mL) = (20 mEq) x (mL) / (40 mEq/15 mL)

We can simplify the calculation before dividing:

Volume to administer (mL) = (20 mEq x 15 mL) / 40 mEq

Volume to administer (mL) = 300 mL / 40 mEq

Volume to administer (mL) = 7.5 mL (round to one decimal place)

Therefore, the nurse should administer 7.5 mL of the potassium chloride solution.

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Correct Answer is A

Explanation

A) "Heparin prevents new clots from forming rather than dissolving established clots":
Heparin works primarily by inhibiting the formation of new clots and preventing existing clots from growing larger. It does not actively dissolve established clots. Instead, the body's natural fibrinolytic system is responsible for breaking down existing clots over time.

B) "The time it takes for heparin to dissolve a clot depends on the size of the clot":
While the size of the clot can influence the duration of treatment with heparin, heparin itself does not directly dissolve clots. Factors such as clot location, patient's overall health, and the body's natural fibrinolytic activity contribute to the resolution of the clot over time.

C) "It usually takes at least 2 to 3 days for heparin to dissolve a clot":
This statement is incorrect because heparin does not dissolve clots. It prevents the clot from growing larger and gives the body time to naturally break down the clot through fibrinolysis, which typically takes longer than a few days.

D) "The time it takes heparin to dissolve clots varies between clients":
This statement is partially correct, as the time it takes for a clot to resolve can vary based on individual factors such as clot size, location, and the body's natural fibrinolytic process. However, heparin itself does not directly dissolve clots.

Correct Answer is ["1"]

Explanation

To determine how many hydrochlorothiazide tablets to administer per dose, we can perform a simple calculation:

Identify the prescribed dose: The nurse needs to administer 25 mg of hydrochlorothiazide per dose.

Identify the tablet strength: Each available tablet contains 50 mg of hydrochlorothiazide.

Calculate the number of tablets: We need to find out how many 50 mg tablets are needed to deliver the prescribed 25 mg dose.

Here, dividing the prescribed dose by the tablet strength will tell us how many tablets are required:

Number of tablets = Prescribed dose / Tablet strength

Number of tablets = 25 mg / 50 mg/tablet

Since the division results in 0.5, we need to round to the nearest whole number for medication administration.

Therefore, the nurse should administer 1 tablet of hydrochlorothiazide per dose.

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A nurse is preparing to administer potassium chloride 20 mEq. The amount available is potassium chloride liquid 40 mEq/15 mL. How many mL should the nurse administer? (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 has thrombophlebitis and is receiving a continuous infusion of heparin. The client asks the nurse how long it will take for the heparin to dissolve the clot. Which of the following responses should the nurse make?

Correct Answer is A

Explanation

Correct Answer is ["1"]

Explanation

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