An isotonic solution contains equal solute concentration on both sides.
True
False
The Correct Answer is A
An isotonic solution is a solution that has the same osmotic pressure as another solution, which means that the solute concentration on both sides of a semipermeable membrane is equal. This causes no net movement of water across the membrane, and the cells remain the same size and shape. An example of an isotonic solution is normal saline (0.9% sodium chloride), which is used to treat dehydration and fluid loss.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: This is correct because an electrolyte is a substance that dissociates into ions when dissolved in water, and can conduct electricity. Some examples of electrolytes in the body are sodium, potassium, calcium, chloride, and bicarbonate.
Choice B reason: This is incorrect because an electrolyte is not a solid or a gas, but a dissolved substance. Electrolytes are essential for maintaining fluid balance, nerve impulses, muscle contractions, and acid-base balance in the body.
Correct Answer is C
Explanation
Choice A reason: This is incorrect because 95-110 mg/dL is the normal range of serum phosphorus level in adults, not chloride. Phosphorus is an electrolyte that is involved in energy metabolism, acid-base balance, and bone formation.
Choice B reason: This is incorrect because 10-120 mEq/L is not a realistic range for any electrolyte level in the blood. The units of mEq/L indicate the concentration of ions, not the mass of the substance. The normal range of serum chloride level in adults is expressed in mEq/L, not mg/dL.
Choice C reason: This is correct because 96-106 mEq/L is the normal range of serum chloride level in adults. Chloride is an electrolyte that is important for fluid balance, acid-base balance, and nerve transmission.
Choice D reason: This is incorrect because 1.8-2.6 mEq/L is the normal range of serum magnesium level in adults, not chloride. Magnesium is an electrolyte that is important for muscle and nerve function, as well as enzyme activity.
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