The nurse is preparing to administer hydration via an intravenous route to a client.
The nurse understands that the patient needs an isotonic solution.
Which of the following options is considered an isotonic solution?
Lactated Ringers (LR).
0.45% Sodium Chloride.
Dextrose in Lactated Ringers.
None of the above.
The Correct Answer is A
Choice A rationale
Lactated Ringers (LR) is an isotonic solution, which means it has the same osmolarity as blood plasma. This property makes LR suitable for rehydrating patients without causing a significant shift of fluids between compartments, maintaining the balance of electrolytes.
Choice B rationale
0.45% Sodium Chloride is a hypotonic solution, meaning it has a lower osmolarity compared to blood plasma. This type of solution would cause fluid to move into cells, potentially leading to cellular swelling.
Choice C rationale
Dextrose in Lactated Ringers is a hypertonic solution because the added dextrose increases the osmolarity. This solution can cause fluid to shift out of cells, leading to cellular shrinkage, which is not ideal for rehydration.
Choice D rationale
None of the above is incorrect because Lactated Ringers (LR) is indeed an isotonic solution.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale
Cancer is characterized by uncontrolled cell growth and the ability to spread or metastasize to other parts of the body, disrupting normal bodily functions.
Choice B rationale
This statement is incorrect because cancer involves uncontrollable cell growth, contrary to what is stated.
Choice C rationale
This statement is incorrect as cancer cells do grow and can spread to other parts of the body.
Choice D rationale
This statement is not accurate as cancer involves specific characteristics that Choices B and C do not describe correctly.
Correct Answer is D
Explanation
Choice A rationale
Intravenous, intramuscular, and intradermal routes bypass the first-pass effect as they do not pass through the liver first.
Choice B rationale
Enteric-coated tablets and capsules are designed to bypass the stomach and dissolve in the intestines, reducing the first-pass effect.
Choice C rationale
The first-pass effect involves the liver metabolizing and inactivating a portion of the medication on its first pass through the liver.
Choice D rationale
Enteral medications, which pass through the digestive system, may require higher doses due to the first-pass effect where the liver metabolizes the medication before it reaches systemic circulation. .
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