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 A
Explanation
Choice A reason: This is a correct finding for a client with an obstruction of the common bile duct. Fatty stools are caused by the reduced or absent flow of bile into the intestine, which impairs the digestion and absorption of fats.
Choice B reason: This is not a correct finding for a client with an obstruction of the common bile duct. Tenderness in the left upper abdomen may indicate a problem with the spleen, the stomach, or the pancreas, but not the bile duct.
Choice C reason: This is not a correct finding for a client with an obstruction of the common bile duct. Ecchymosis of the extremities is a bruising of the skin due to bleeding under the surface. It may be caused by trauma, medication, or bleeding disorders, but not by bile duct obstruction.
Choice D reason: This is not a correct finding for a client with an obstruction of the common bile duct. Pale-colored urine is a sign of dilute or low concentration of urine, which may be caused by excessive fluid intake, diabetes insipidus, or kidney failure, but not by bile duct obstruction.
Correct Answer is ["A","B","D"]
Explanation
Choice A reason: Oily stools are common, especially when excessive fat is consumed, because orlistat blocks the absorption of fat in the intestines. The undigested fat is then eliminated in the stool, making it oily, greasy, or foul-smelling.
Choice B reason: Many patients note having an increase of gas and flatus, because orlistat can also interfere with the digestion of carbohydrates and proteins, causing fermentation and gas production in the colon.
Choice C reason: Constipation is not a common side effect with this medication. In fact, orlistat may cause the opposite effect of diarrhea, as the unabsorbed fat can irritate the bowel and increase the motility.
Choice D reason: Some patients report the development of fecal incontinence, because orlistat can cause unpredictable bowel movements and difficulty in controlling the passage of stool, especially if the patient consumes a high-fat diet.
Choice E reason: This medication does have side effects, even though it can be bought over the counter. Orlistat is a prescription-strength drug that can cause serious adverse reactions, such as liver damage, kidney stones, gallbladder problems, and vitamin deficiencies. The over-the-counter version is a lower dose than the prescription one, but it still requires medical supervision and lifestyle changes.
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