A physician orders an isotonic IV solution for a client. Which solution should the nurse plan to administer?
Half-normal saline solution
10% dextrose in water
5% dextrose and half-normal saline solution
Lactated Ringer's solution
The Correct Answer is D
Choice A reason: Half-normal saline solution is a hypotonic solution, which means it has a lower concentration of solutes than the blood plasma. It can cause fluid to shift from the blood vessels into the cells, leading to cellular swelling and edema.
Choice B reason: 10% dextrose in water is a hypertonic solution, which means it has a higher concentration of solutes than the blood plasma. It can cause fluid to shift from the cells into the blood vessels, leading to cellular shrinkage and dehydration.
Choice C reason: 5% dextrose and half-normal saline solution is a hypertonic solution, which has the same effects as choice B. The dextrose increases the osmolarity of the solution, while the half-normal saline provides some electrolytes.
Choice D reason: Lactated Ringer's solution is an isotonic solution, which means it has the same concentration of solutes as the blood plasma. It maintains fluid balance and provides electrolytes such as sodium, potassium, calcium, and lactate. It is commonly used for fluid resuscitation, dehydration, and acidosis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A reason: This is not a correct manifestation of appendiceal perforation. Blanched abdomen means that the skin of the abdomen is pale or white, which can indicate shock or blood loss. However, it is not a specific sign of appendiceal perforation, as it can occur in other conditions as well.
Choice B reason: This is a correct manifestation of appendiceal perforation. Sudden decrease in abdominal pain means that the pain that was previously felt in the right lower quadrant of the abdomen has subsided or disappeared. This can indicate that the appendix has ruptured and released the pus and bacteria into the peritoneal cavity, causing peritonitis. This is a serious complication that requires immediate surgical intervention.
Choice C reason: This is not a correct manifestation of appendiceal perforation. Absent Rovsing's sign means that there is no pain in the right lower quadrant of the abdomen when the left lower quadrant is palpated. This is a sign of appendicitis, not appendiceal perforation, as it indicates that the appendix is inflamed and irritated by the pressure.
Choice D reason: This is not a correct manifestation of appendiceal perforation. Fever means that the body temperature is above the normal range, which can indicate infection or inflammation. However, it is not a specific sign of appendiceal perforation, as it can occur in other conditions as well.
Correct Answer is A
Explanation
Choice A reason: This is a correct answer because normal saline is an isotonic solution, which means it has the same osmolarity as the blood plasma. It does not cause any fluid shifts between the intracellular and extracellular compartments, and it can help restore the fluid balance and the blood pressure of the dehydrated client.
Choice B reason: This is not a correct answer because 1/2 normal saline is a hypotonic solution, which means it has a lower osmolarity than the blood plasma. It causes fluid to shift from the extracellular to the intracellular compartment, which can lead to cellular swelling and edema. It is not suitable for rapid infusion, as it can cause hemolysis and hypotension.
Choice C reason: This is not a correct answer because D5W (5% Dextrose in Water) is an isotonic solution when it is in the IV bag, but it becomes hypotonic once it enters the body, as the dextrose is rapidly metabolized and only water remains. It causes fluid to shift from the extracellular to the intracellular compartment, which can lead to cellular swelling and edema. It is not suitable for rapid infusion, as it can cause hemolysis and hypotension.
Choice D reason: This is not a correct answer because D5 1/2 normal saline is a hypertonic solution, which means it has a higher osmolarity than the blood plasma. It causes fluid to shift from the intracellular to the extracellular compartment, which can lead to cellular shrinkage and dehydration. It is not suitable for rapid infusion, as it can cause hypernatremia and fluid overload.
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