A nurse is teaching students about the use of isotonic solutions. The nurse recognizes which statements made by a student about isotonic solutions are correct. (SELECT ALL THAT APPLY)

Is used to replace fluid loss

Usually do not provide calories

Does not expand intravascular volume

Mostly do not provide free water

Has the same osmolality as body fluids

Answer and Explanation

Correct Answer : A,B,D,E

A. Is used to replace fluid loss.

Isotonic solutions, such as normal saline (0.9% NaCl) and lactated Ringer's solution, are used to replace fluid loss in situations such as dehydration, surgery, trauma, or other conditions where there is a need for fluid resuscitation.

B. Usually do not provide calories.

Isotonic solutions typically do not contain calories. They are designed primarily for fluid replacement and do not contribute to the nutritional needs of the patient.

C. Does not expand intravascular volume.

This statement is incorrect. Isotonic solutions are used to expand intravascular volume. When infused into the bloodstream, isotonic solutions help restore and maintain adequate blood volume. They do not cause significant shifts of fluids between compartments.

D. Mostly do not provide free water.

Isotonic solutions generally do not provide free water. They have the same osmolality as body fluids, meaning that they do not cause a net movement of water into or out of cells, and they maintain the osmotic balance.

E. Has the same osmolality as body fluids.

Isotonic solutions have the same osmolality as body fluids, which means they do not cause a net movement of water into or out of cells. This characteristic makes them suitable for situations where there is a need to expand intravascular volume without causing significant shifts in fluid compartments.

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Correct Answer is A

Explanation

A. Regular insulin:

Regular insulin, also known as short-acting insulin, is commonly used in the initial management of diabetic ketoacidosis. It has a relatively rapid onset of action, making it suitable for addressing the acute and severe nature of DKA.

B. Insulin detemir:

Insulin detemir is a long-acting insulin analog. It is not the preferred choice for addressing the acute insulin needs in DKA; instead, it is used for basal insulin requirements in the maintenance phase of diabetes management.

C. Insulin glargine:

Insulin glargine is a long-acting insulin analog used for basal insulin coverage. Like insulin detemir, it is not the first choice for addressing the acute insulin needs in the initial treatment of DKA.

D. NPH insulin:

NPH (Neutral Protamine Hagedorn) insulin is an intermediate-acting insulin. While it has a role in diabetes management, it is not the preferred choice for the initial treatment of DKA. NPH insulin has a slower onset and longer duration compared to regular insulin.

A. Calcium B. Magnesium C. Amylase D. RBC count

Correct Answer is C

Explanation

A. Calcium:

While calcium levels can be affected in pancreatitis, it is more commonly associated with a decrease in calcium levels due to fat necrosis and the formation of calcium soaps. However, the primary electrolyte disturbance is more likely to involve magnesium.

B. Magnesium:

Magnesium levels may be decreased in acute pancreatitis due to factors such as vomiting, malabsorption, and poor oral intake. Hypomagnesemia is a possible consequence, but it's not as specific to pancreatitis as the elevation of amylase.

C. Amylase:

Elevated amylase levels are a hallmark of acute pancreatitis. Amylase is an enzyme released by the pancreas, and its elevation in the blood is a key diagnostic marker for pancreatitis.

D. RBC count:

Acute pancreatitis does not typically result in a significant impact on the red blood cell (RBC) count. The elevation of amylase and lipase levels, along with imaging studies, is more indicative of pancreatitis.

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A nurse is teaching students about the use of isotonic solutions. The nurse recognizes which statements made by a student about isotonic solutions are correct. (SELECT ALL THAT APPLY)

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is caring for a client who has a history of diabetes mellitus and is being admitted to the unit confused, flushed, and with an acetone odor on the breath. Diabetic ketoacidosis is suspected. The nurse should anticipate using which of the following types of insulin to treat this client?

Correct Answer is A

Explanation

A nurse is reviewing the laboratory data of a client diagnosed with acute pancreatitis. The nurse should expect to find an elevation of which of following values?

Correct Answer is C

Explanation

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