A severely dehydrated client has come in for rapid administration of IV fluids. Which of the following solutions is the best solution for rapid infusion?
Normal Saline
1/2 Normal Saline
D5W (5% Dextrose in Water)
D5 1/2 Normal Saline
The Correct Answer is A
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A reason: Decreased heart rate is not a manifestation of hypovolemia. Hypovolemia is a condition where there is a decreased volume of blood in the body, which can result from blood loss, dehydration, or fluid shifts. Hypovolemia can cause the heart rate to increase, not decrease, as the body tries to compensate for the low blood pressure and maintain adequate perfusion.
Choice B reason: Increased blood pressure is not a manifestation of hypovolemia. Hypovolemia can cause the blood pressure to decrease, not increase, as the blood volume and cardiac output are reduced. The body may try to constrict the blood vessels to increase the blood pressure, but this is usually not enough to overcome the effects of hypovolemia.
Choice C reason: Weak pulse is a manifestation of hypovolemia. Hypovolemia can cause the pulse to become weak, thready, or difficult to palpate, as the blood flow and pressure are diminished. The pulse may also become irregular or rapid, as the heart tries to pump faster and harder to deliver oxygen to the tissues.
Choice D reason: Dyspnea is not a specific manifestation of hypovolemia. Dyspnea is a term for difficulty breathing, which can have many causes, such as asthma, pneumonia, or pulmonary edema. Hypovolemia can cause dyspnea if it leads to shock, which is a life-threatening condition where the organs and tissues are not receiving enough oxygen. However, dyspnea alone is not enough to indicate hypovolemia.
Correct Answer is D
Explanation
Choice A reason: Slowing the rate to 50 mL/hr is not an appropriate action by the nurse before calling the physician to clarify the order. This could cause the client to become more hypovolemic, which is a condition where there is a decreased volume of blood in the body. Hypovolemia can lead to shock, organ failure, and death.
Choice B reason: Slowing the rate to 20 mL/hr is not an appropriate action by the nurse before calling the physician to clarify the order. This could also cause the client to become more hypovolemic, which is a serious and life-threatening condition. The nurse should not reduce the IV fluid rate without a physician's order.
Choice C reason: Increasing the rate to 250 mL/hr is not an appropriate action by the nurse before calling the physician to clarify the order. This could cause the client to become more hypervolemic, which is a condition where there is an excess of fluid in the blood vessels. Hypervolemia can cause fluid overload, pulmonary edema, and heart failure.
Choice D reason: Continuing the rate at 125 mL/hr is an appropriate action by the nurse before calling the physician to clarify the order. This is a reasonable rate for a client who has a head injury and hypovolemia, as it can help restore the fluid balance and prevent cerebral edema. The nurse should not change the IV fluid rate without a physician's order.
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