Pharmacology & Review of Evidence


Keys to Managing Symptomatic Hyponatremia

Indications for Emergency Treatment

  • Confusion, agitation, coma, or seizures secondary to low serum sodium levels


Goal Na+

  • Symptoms of severe hyponatremia

o Goal of 5 – 6 mEq/L increase in serum sodium in first 1 – 2 hours

o Goal of 120 mEq/L initially followed by slower correction to approximately 130 mEq/L over the following 24-48 hours

o Initial goal serum sodium level should be lower if the baseline serum sodium is < 100 mEq/L



Osmolarity of Commonly Use Drugs

3% NaCl = 1027 mOsml/L

7.5% NaCl = 2,567 mOsm/L

8.4% Sodium Bicarbonate = 2000 mOsm/L

23.4% NaCl = 8011 mOsm/L

References

1. Sodium chloride. Micromedex [Electronic version].Greenwood Village, CO: Truven Health Analytics. Retrieved December 21, 2019, from http://www.micromedexsolutions.com/

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4. Perez CA, et al. J Neurosci Nurs. 2017 Jun;49(3):191-195. PMID: 28471928

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8. Spasovski G, et al. Nephrol Dial Transplant. 2014 Apr;29 Suppl 2:i1-i39. PMID: 24569496

9. Verbalis JG, et al. Am J Med. 2013 Oct;126(10 Suppl 1):S1-42. PMID: 24074529

Access to PDF File Below

3% Hypertonic Saline_NaCL for Symptomatic Hyponatremia- Pharmacy Friday Pearls-Jlp1.pdf