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 D

Explanation

A) Dyspnea:
Diphenhydramine, an antihistamine, primarily addresses allergic reactions associated with blood transfusions, such as urticaria (hives), rather than respiratory symptoms like dyspnea.

B) Fever:
While diphenhydramine may help alleviate some symptoms of an allergic reaction, its primary role in the context of blood transfusions is to mitigate hypersensitivity reactions like urticaria, not fever.

C) Low-back pain:
Low-back pain is not typically associated with allergic reactions to blood transfusions. Diphenhydramine is not indicated for preventing or managing this symptom.

D) Urticaria:
Diphenhydramine is administered to prevent or reduce symptoms of an allergic reaction to blood transfusions, such as urticaria (hives). It works by blocking histamine receptors, which are involved in allergic responses.

A. Regular B. Glargine C. NPH D. Detemir

Correct Answer is A

Explanation

A) Regular insulin:
Regular insulin is a short-acting insulin that acts quickly to lower blood glucose levels. It is suitable for managing diabetic ketoacidosis (DKA), which presents with symptoms such as confusion, flushed skin, and a fruity or acetone odor on the breath. Regular insulin helps to reduce ketone production and normalize blood glucose levels rapidly.

B) Glargine:
Glargine is a long-acting insulin that provides basal insulin coverage over an extended period. It is not typically used for the acute management of diabetic ketoacidosis due to its slow onset and prolonged duration of action.

C) NPH (Neutral Protamine Hagedorn):
NPH insulin is an intermediate-acting insulin that has a slower onset and duration compared to regular insulin. It is not the first choice for treating diabetic ketoacidosis due to its slower action.

D) Detemir:
Detemir is a long-acting insulin analogue that provides basal insulin coverage. Similar to glargine, it is not ideal for the acute treatment of diabetic ketoacidosis due to its slower onset and extended duration of action.

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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.)

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is preparing to administer diphenhydramine to a client who is to receive a blood transfusion. The nurse should explain that the purpose of diphenhydramine is to prevent which of the following manifestations of a transfusion reaction?

Correct Answer is D

Explanation

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Correct Answer is A

Explanation

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