A patient has been admitted to the postsurgical nursing unit after surgery. The health care provider has ordered the patient to have an IV of 0.9 sodium chloride. The nurse who is caring for the patient recognizes this as what type of solution?
Isotonic
Hypnotic
Hypotonic
Hypertonic
The Correct Answer is A
A. 0.9% sodium chloride (normal saline) is isotonic, meaning it has the same concentration of solutes as blood plasma. It is used to expand intravascular volume and replace fluids and electrolytes.
B. "Hypnotic" refers to medications that induce sleep and has no relevance to IV solutions. This term does not apply to IV solutions.
C. A hypotonic solution has a lower concentration of solutes compared to normal body fluids. Examples include 0.45% sodium chloride (half-normal saline) or 5% dextrose in water (D5W). 0.9% sodium chloride (normal saline) is not hypotonic; rather, it is isotonic.
D. A hypertonic solution has a higher concentration of solutes compared to normal body fluids. Examples include 3% sodium chloride or 5% dextrose in 0.9% sodium chloride. 0.9% sodium chloride (normal saline) is not hypertonic; rather, it is isotonic.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["1.5"]
Explanation
Volume to administer (mL) = Dose ordered (mg) / Concentration of drug (mg/mL).
For a dose of 15 mg and a concentration of 10 mg/mL, the calculation would be 15 mg / 10 mg/mL = 1.5 mL.
Therefore, the nurse should administer 1.5 mL of morphine injection.
Correct Answer is C
Explanation
C. Dextrose 5% in water is a hypotonic solution that contains 5 grams of dextrose in each 100 mL of water. It provides free water without adding significant sodium, which helps to dilute the elevated sodium levels in hypernatremia. This solution is effective in correcting hypernatremia by promoting water movement from the intravascular space into the cells and extracellular space.
A. Albumin solutions are primarily used for volume expansion and to increase oncotic pressure in conditions like hypoalbuminemia or shock. They do not provide free water and are not typically used for treating hypernatremia.
B. Dextrose 10% in water is a hypertonic solution used primarily for providing calories and treating hypoglycemia. It does not correct hypernatremia because it does not significantly affect sodium levels or provide sufficient free water to dilute sodium.
D. Dextran 40 is a colloid solution that is used for volume expansion in hypovolemia or shock. It does not provide free water and is not indicated for correcting hypernatremia.
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