Electrolyte Repletion: Difference between revisions

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=Potassium=
*Usual dose is 40meq IV or PO unless level is <2.5.  If so, both forms should be given
*10meq will raise serum level by 0.1
*Intravenous K+ typically runs at 10meq/hour, burns when infused, and may cause phelbitis/sclerosis if run faster
*Oral K+ more quickly absorbed and preferred
*KCl elixir easily swallowed, but tastes terrible, KDur oral tablet is large and hard to swallow
*Serum K+ will not respond if patient has concurrent hypomagnesmia


=Magnesium=
=Magnesium=

Revision as of 07:05, 18 December 2013

Magnesium

  • Replete if serum level <1.7
  • Usual dose is 2g over 1 hour
  • If level <than 1.2, double the dose
  • Oral repletion may done if level is >1.2 and pt is asymptomatic
  • Magnesium oxide 400mg is approximately equal to 2g of MgSO4

Phosphorus

  • If <2.4:
    • Neutra-Phos 2 packets PO Q6hr x 48hr OR sodium phosphate 30mmol IV
  • If <1:
    • IV Sodium Phosphate 45mmol should be used
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