Answer to Question #191388 in Chemistry for Kenan

Question #191388

In the biochemistry laboratory, one patient's serum was found to contain 6.4 mg / mL of sodium in the form of ions. How do you comment on that level if it is known that the physiological limits for sodium ion are from 137 to 145 mmol / L?


1
Expert's answer
2021-05-17T04:16:35-0400

Solution:

Sodium ion = Na+

The atomic weight of sodium (Na) is 22.989769 g/mol.

Hence,

(6.4 mg Na+ / 1 mL) × (1000 mL / 1 L) × (1 mol Na / 22.989769 g Na) = 278.4 mmol/L Na+

The physiological limits for sodium ion (Na+) are from 137 to 145 mmol/L

Conclusion: The sodium ion (Na+) level in the patient's serum exceeds the physiological limits.

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