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 ["50"]
Explanation
To calculate the flow rate in gtt/min, the total volume (400 mL) should be divided by the total time in minutes (8 hours x 60 minutes/hour = 480 minutes). This gives the mL/min.
Then, multiply the mL/min by the drop factor (60 gtt/mL) to get the gtt/min. So, the calculation would be (400 mL / 480 min) x 60 gtt/mL = 50 gtt/min.
Therefore, the nurse should set the manual IV infusion to deliver 50 gtt/min.
Correct Answer is B
Explanation
B. It occurs when there is an abnormally high concentration of potassium in the bloodstream, typically above 5.0 mEq/L. Symptoms of hyperkalemia can include chest pain, palpitations, muscle weakness, and potentially life-threatening cardiac arrhythmias.
A. Hypercalcemia refers to elevated levels of calcium in the blood, not potassium.
C. Hypokalemia is the opposite condition where there is a lower-than-normal level of potassium in the blood.
D Hyponatremia refers to a low sodium level in the blood.
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