Metabolic acidosis: Difference between revisions

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==Types==
==DDX==
===Gap===
#Lactic acidosis
#Renal failure
#Ketoacidosis
##DM
##ETOH
##Starvation
##High fat diet
#Tox ingestion
##Inc osm gap
###Methanol
###Ethylene glycol
##Nl osm gap
### Salicylate
###Paraldehyde
###Cyanide


1. Gap
===Non-gap===
 
# Hyperkalemia
* Lactic acidosis
## Resolving DKA
 
## Early uremic acidosis
* Renal failure
## Early obstructive
 
## RTA Type IV
* Ketoacidosis
## Hypoaldo
** DM
## K-sparing diuretics
** ETOH
# Hypokalemia
** Starvation
## RTA Type I
** High fat diet
## RTA Type II
* Tox ingestion
## Acetazolamide
** Inc osm gap
## Acute diarrhea
*** Methanol
### (May be assoc with gap if hypoperfusion -> lactic acidosis)
*** Ethylene glycol
** Nl osm gap
*** Salicylate
*** Paraldehyde
*** Cyanide
 
2. Non-gap
* Hyperkalemia
** Resolving DKA
** Early uremic acidosis
** Early obstructive
** RTA Type IV
** Hypoaldo
** K-sparing diuretics
* Hypokalemia
** RTA Type I
** RTA Type II
** Acetazolamide
** Acute diarrhea
*** (May be assoc with gap if hypoperfusion -> lactic acidosis)


==Treatment==
==Treatment==
 
Treat source


===Bicarbonate Indications===
===Bicarbonate Indications===
 
#Bicarb <4
 
#pH <7.20 + Sx shock/myocardial irritability
1) Bicarb <4
#Severe hyperchloremic acidemia + Sx shock/myocardial irritability
 
2) pH <7.20 + Sx shock/myocardial irritability
 
3) Severe hyperchloremic acidemia + Sx shock/myocardial irritability
 


==Source ==
==Source ==
2/21/06 DONALDSON (adapted from Tintinalli)
2/21/06 DONALDSON (adapted from Tintinalli)


[[Category:FEN]]
[[Category:FEN]]

Revision as of 05:07, 14 March 2011

DDX

Gap

  1. Lactic acidosis
  2. Renal failure
  3. Ketoacidosis
    1. DM
    2. ETOH
    3. Starvation
    4. High fat diet
  4. Tox ingestion
    1. Inc osm gap
      1. Methanol
      2. Ethylene glycol
    2. Nl osm gap
      1. Salicylate
      2. Paraldehyde
      3. Cyanide

Non-gap

  1. Hyperkalemia
    1. Resolving DKA
    2. Early uremic acidosis
    3. Early obstructive
    4. RTA Type IV
    5. Hypoaldo
    6. K-sparing diuretics
  2. Hypokalemia
    1. RTA Type I
    2. RTA Type II
    3. Acetazolamide
    4. Acute diarrhea
      1. (May be assoc with gap if hypoperfusion -> lactic acidosis)

Treatment

Treat source

Bicarbonate Indications

  1. Bicarb <4
  2. pH <7.20 + Sx shock/myocardial irritability
  3. Severe hyperchloremic acidemia + Sx shock/myocardial irritability

Source

2/21/06 DONALDSON (adapted from Tintinalli)