Hypokalemia: Difference between revisions

Revision as of 07:13, 18 December 2013

CNS
- Weakness
- Cramps
- Hyporeflexia
GI
- Ileus
Renal
- Met alkalosis
CV
- PACs/PVCs
- Bradycardia or atrial/junctional tachycardia
- AV block
- V tach, V fib

Shift
- Alkalosis (each 0.10 rise in pH causes 0.5 decrease)
- Insulin
- B-agonist
Decreased intake
Increased loss
- GI (v/d/fistula)
- Renal
  - Diuretics
  - Hyperaldo
- Exercise
  - HyperCa
  - HypoMg
Drugs
- PCN
- Lithium
- L-dopa
- Theophyline

every 10meq should inc serum by ~0.1meq/L
If level is <2.5, both oral and IV should be given
Typically 20meq/hr KCl IV or PO
Oral K+
- more quickly absorbed and preferred
- KCl elixir easily swallowed, but tastes terrible
- KDur oral tablet is large and hard to swallow
Intravenous K+
- typically runs at 10meq/hour (peripheral line)
- burns when infused, and may cause phelbitis/sclerosis if run faster
Treat Hypomagnesemia if present

Authors:

@@ Line 46: / Line 46: @@
 ==Treatment==
-*20meq/hr KCl IV or PO
+*every 10meq should inc serum by ~0.1meq/L
-**every 10meq should inc serum by ~0.1meq/L
+*If level is <2.5, both oral and IV should be given
-*Treat hypomag if present
+*Typically 20meq/hr KCl IV or PO
+*Oral K+
-*Usual dose is 40meq IV or PO unless level is <2.5.  If so, both forms should be given
+**more quickly absorbed and preferred
-*10meq will raise serum level by 0.1
+**KCl elixir easily swallowed, but tastes terrible
-*Intravenous K+ typically runs at 10meq/hour, burns when infused, and may cause phelbitis/sclerosis if run faster
+**KDur oral tablet is large and hard to swallow
-*Oral K+ more quickly absorbed and preferred
+*Intravenous K+
-*KCl elixir easily swallowed, but tastes terrible, KDur oral tablet is large and hard to swallow
+**typically runs at 10meq/hour (peripheral line)
+**burns when infused, and may cause phelbitis/sclerosis if run faster
+*Treat [[Hypomagnesemia]] if present
 ==See Also==