A nurse is to administer a hypotonic solution to a patient with a critically high sodium. Which solution is hypotonic?
0.9% Sodium Chloride
Lactated Ringer's
D5W (5% Dextrose in Water)
0.45% Sodium Chloride
The Correct Answer is D
Choice A reason: This is not a correct answer because 0.9% Sodium Chloride 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.
Choice B reason: This is not a correct answer because Lactated Ringer's 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.
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. However, it is not a preferred solution for a patient with critically high sodium, as it can cause cerebral edema and worsen the neurological status.
Choice D reason: This is a correct answer because 0.45% Sodium Chloride 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 help lower the sodium level and correct the fluid imbalance.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A reason: The upper right quadrant is not the correct location for McBurney's point. This quadrant contains the liver, gallbladder, right kidney, and part of the colon. Pain in this area may indicate problems with these organs, such as hepatitis, gallstones, or kidney infection.
Choice B reason: The upper left quadrant is not the correct location for McBurney's point. This quadrant contains the stomach, spleen, left kidney, and part of the colon. Pain in this area may indicate problems with these organs, such as gastritis, splenomegaly, or kidney stones.
Choice C reason: The lower right quadrant is the correct location for McBurney's point. This quadrant contains the appendix, right ovary, and right fallopian tube. McBurney's point is a point on the abdomen that is one-third of the distance from the right anterior superior iliac spine to the umbilicus. Pain in this area may indicate appendicitis, ovarian cyst, or ectopic pregnancy.
Choice D reason: The lower left quadrant is not the correct location for McBurney's point. This quadrant contains the sigmoid colon, left ovary, and left fallopian tube. Pain in this area may indicate problems with these organs, such as diverticulitis, ovarian torsion, or pelvic inflammatory disease.

Correct Answer is B
Explanation
Choice A reason: This is not a correct result that the nurse should anticipate. RBC stands for red blood cells, which carry oxygen and carbon dioxide in the blood. The normal range for RBC is 4-5.5 /mm^3^, so a value of 4.2 /mm^3^ is within the normal range and does not indicate any abnormality.
Choice B reason: This is a correct result that the nurse should anticipate. WBC stands for white blood cells, which fight infections and inflammation in the body. The normal range for WBC is 5-10 /mm^3^, so a value of 17 /mm^3^ is above the normal range and indicates leukocytosis, which is an increase in the number of white blood cells. Leukocytosis can be caused by acute appendicitis, as the body tries to fight the infection and inflammation in the appendix.
Choice C reason: This is not a correct result that the nurse should anticipate. Neutrophils are a type of white blood cell that are the first to respond to bacterial infections. The normal range for neutrophils is 3-5.8 /mm^3^, so a value of 3.2 /mm^3^ is within the normal range and does not indicate any abnormality.
Choice D reason: This is not a correct result that the nurse should anticipate. Lymphocytes are a type of white blood cell that are involved in the immune response and the production of antibodies. The normal range for lymphocytes is 1-4 /mm^3^, so a value of 3 /mm^3^ is within the normal range and does not indicate any abnormality.
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