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
Cyclobenzaprine is commonly prescribed for the relief of muscle spasms related to acute musculoskeletal conditions. It is a muscle relaxant.
Choice B rationale
This choice is incorrect as cyclobenzaprine is not used for malignant hyperthermia. Dantrolene is the medication used for this condition.
Choice C rationale
Cyclobenzaprine is not indicated for spasticity related to cerebral palsy, spinal cord injury, or multiple sclerosis. Other medications like baclofen or dantrolene are used for these conditions.
Choice D rationale
Not all the above choices are correct; hence this is incorrect. .
Correct Answer is A
Explanation
Choice A rationale
Warfarin is an anticoagulant that is used to prevent venous thrombosis and thromboembolic events by inhibiting the synthesis of vitamin K-dependent clotting factors.
Choice B rationale
Warfarin is not used to prevent angina pectoris, which is typically managed with nitrates, beta-blockers, or calcium channel blockers.
Choice C rationale
Warfarin is not used to treat bradycardia, which is usually managed with medications like atropine or pacemaker implantation.
Choice D rationale
Warfarin is not used to treat hypertension. Antihypertensive medications such as ACE inhibitors, beta-blockers, or diuretics are used for this purpose.
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