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
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Administer medications:
While nasogastric tubes can be used to administer medications, this is not the primary rationale for their use in pyloric obstruction. The primary goal is often decompression.
B. Supply nutrients via tube feedings:
Providing nutrients via tube feedings is not the primary purpose in the context of a pyloric obstruction. Decompression is more relevant in this scenario.
C. Decompress the stomach:
Decompressing the stomach is a common use of nasogastric tubes in the context of pyloric obstruction. The tube helps to remove excess air and gastric contents, relieving pressure in the stomach.
D. Determine the pH of the gastric secretions:
While determining the pH of gastric secretions is a possible use, it is not the primary rationale for nasogastric tube placement in pyloric obstruction. The primary goal is often to relieve obstruction and decompress the stomach.
Correct Answer is B
Explanation
A. Testing the client's emesis for blood is an important assessment, but assessing orthostatic blood pressure is a priority. Orthostatic blood pressure measurement helps identify if the client is experiencing significant blood loss, as changes in blood pressure upon standing may indicate hypovolemia.
B. Assessing orthostatic blood pressure is the priority action. Orthostatic hypotension can be a sign of decreased circulating blood volume, which is a concern in clients with gastrointestinal bleeding.
C. Explaining the procedure for an upper gastrointestinal series is not the first priority. While diagnostic tests may be needed, addressing the immediate concern of potential hypovolemia takes precedence.
D. Administering pain medication is not the first action. The priority is to assess and address the potential complications of gastrointestinal bleeding, such as hypovolemia.
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