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
Naloxone (Narcan) is an opioid antagonist that works by binding to opioid receptors in the central nervous system, displacing opioids, and reversing their effects such as respiratory depression and sedation.
Choice B rationale
Abstinence syndrome is treated with medications that manage withdrawal symptoms rather than reversing opioid effects, which is not naloxone's primary use.
Choice C rationale
Naloxone does not have analgesic properties, meaning it does not relieve pain; it is specifically used to counteract opioid overdose.
Choice D rationale
Naloxone is not used to treat hypoglycemia, which is a condition of low blood sugar levels, managed by glucose administration.
Correct Answer is A
Explanation
Choice A rationale
Omeprazole (Prilosec) is a proton pump inhibitor used to prevent peptic ulcers by reducing stomach acid production.
Choice B rationale
Omeprazole is used in combination with antibiotics to treat H. pylori-induced ulcers but not for acute treatment.
Choice C rationale
Omeprazole is not solely used to treat heartburn; it is mainly for preventing and treating peptic and gastric ulcers.
Choice D rationale
Omeprazole is used to prevent gastric ulcers caused by NSAIDs, but its primary indication is for peptic ulcers prevention. .
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