Question 68

NS contains 0.90% sodium chloride.

Normal Saline (NS) is a solution that contains 0.90% sodium chloride, which is commonly used in medical settings for various purposes, including hydration and as a diluent for medications.

A) 0.13%

0.13% sodium chloride is significantly lower than the concentration found in Normal Saline. This option does not accurately represent the standard formulation of NS, which is well-established at 0.90%.

B) 0.90%

This option correctly identifies the concentration of sodium chloride in Normal Saline. NS is defined by its 0.90% saline content, making it an important solution in both clinical and emergency settings for fluid resuscitation and maintaining electrolyte balance.

C) 3%

A concentration of 3% sodium chloride is much higher than what is found in Normal Saline. This percentage indicates a hypertonic saline solution, which is used in specific medical scenarios but is not representative of NS.

D) 23.40%

23.40% sodium chloride is an extremely high concentration that would be considered hypertonic and potentially harmful if administered improperly. This option is incorrect as it does not reflect the composition of Normal Saline.

Conclusion

The correct answer is 0.90% sodium chloride, which is the standard concentration for Normal Saline. Other options either underestimate or overestimate the sodium chloride content, making them incorrect. Understanding the precise formulation of NS is crucial for its appropriate application in medical practice.