How many milligrams of sodium chloride are contained in 1,000 mL of D5 (1/2) NS?
4,500 mg
9,000 mG
2.250 mg
500 mg
The Correct Answer is A
A. 4,500 mg: (1/2) NS refers to a half-strength normal saline solution. Normal saline (0.9% NaCl) contains 9 grams, which is 9,000 mg, of sodium chloride per 1,000 mL. Therefore, a half-strength solution will contain exactly half of this amount, which is 4,500 mg.
B. 9,000 mg: A concentration of 9,000 mg of sodium chloride would be found in 1,000 mL of a full-strength normal saline solution (NS or 0.9% NaCl), not a half-strength solution. This represents the total amount of NaCl in a standard liter of NS.
C. 2,250 mg: This value is a quarter of the total sodium chloride found in a liter of normal saline. This amount would be found in a quarter-strength normal saline solution (1/4 NS), which is a different concentration than what is specified.
D. 500 mg: While 500 mg of dextrose is present per 100 mL of D5W, this value does not represent the sodium chloride content of any standard IV solution.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. roller clamp: The roller clamp is used to regulate or stop the flow rate of IV fluids, not to introduce medications or additional fluids. It does not provide access to the IV line for injection purposes.
B. slide clamp: The slide clamp is primarily used to completely occlude or temporarily stop IV flow. It is not designed for medication administration or fluid addition to the IV line.
C. drip chamber: The drip chamber is used to monitor and control the drip rate of the IV fluid. Medications should never be injected directly into the drip chamber, as this bypasses proper safety and dosing procedures.
D. Injection port: The injection port provides safe and sterile access to the IV tubing for administering medications or compatible fluids. It allows the nurse to introduce substances directly into the primary IV line using a syringe.
Correct Answer is D
Explanation
A. PCA device: A patient-controlled analgesia (PCA) device uses programmed electronic controls to deliver medication, not gravity, to ensure precise dosing and timing.
B. infusion pump: An infusion pump actively controls and delivers fluids at a set rate using mechanical force, independent of gravity.
C. syringe pump: Syringe pumps use motorized pressure to deliver fluids in small volumes over time and do not depend on gravitational flow.
D. rate controller: A rate controller works with gravity by regulating the flow of IV fluid from the bag into the patient using a dial or clamp but does not apply mechanical force itself.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.