Alcoholic ketoacidosis: Difference between revisions
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*[[Vomiting]] (73%) | *[[Vomiting]] (73%) | ||
*[[Abdominal pain]] (62%) | *[[Abdominal pain]] (62%) | ||
*Typically, history of binge drinking ending in nausea, vomiting, and decreased intake | |||
*Not hyperosmolar as opposed to [[DKA]] | *Not hyperosmolar as opposed to [[DKA]] | ||
==Differential Diagnosis== | ==Differential Diagnosis== | ||
| Line 37: | Line 37: | ||
==Evaluation== | ==Evaluation== | ||
* | *[[Anion gap acidosis]] | ||
**Typically ''wide'' anion gap | |||
*Positive serum ketones | **Positive serum ketones + [[lactic acidosis]] | ||
***Lab measured ketone is acetoacetate | |||
* | ***May miss beta-hydroxybutyrate | ||
**Lab measured ketone is acetoacetate | ***Urine ketones may be falsely negative or low | ||
**May miss beta-hydroxybutyrate | |||
*Typically normal osmolal gap | *Typically normal osmolal gap | ||
*Alcohol level usually zero or not considerably high | *Alcohol level usually zero or not considerably high | ||
*BMP, Mg/phos | |||
**Often have concomitant [[electrolyte abnormalities]] | |||
==Management== | ==Management== | ||
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*Hydration (D5NS) | *Hydration (D5NS) | ||
**[[IVF]] should include 5% dextrose since there is a lack of glucose | **[[IVF]] should include 5% dextrose since there is a lack of glucose | ||
**Large IVF admin does not predispose to cerebral edema | |||
**Glucose stimulates insulin which stops lipolysis | **Glucose stimulates insulin which stops lipolysis | ||
*Oral nutrition if able to tolerate | *Oral nutrition if able to tolerate | ||
| Line 58: | Line 60: | ||
**K, Mag and Phos | **K, Mag and Phos | ||
*Monitor for signs of [[Alcohol Withdrawal|alcohol withdrawal]] | *Monitor for signs of [[Alcohol Withdrawal|alcohol withdrawal]] | ||
*Consider bicarb if life-threatening acidosis (pH <7.1) unresponsive to fluid therapy | *Consider [[bicarb]] if life-threatening acidosis (pH <7.1) unresponsive to fluid therapy | ||
==Disposition== | ==Disposition== | ||
Revision as of 15:26, 28 September 2019
Background
- Seen in patients with recent history of binge drinking with little/no nutritional intake
- Anion gap metabolic acidosis associated with acute cessation of EtOH consumption after chronic abuse
- Characterized by high serum ketone levels and an elevated AG
- Consider other causes of elevated AG, as well as co-ingestants (toxic alcohols, salicylates)
- Concomitant metabolic alkalosis can occur from dehydration (volume depletion) and emesis, so a normal blood pH may be found
Pathophysiology
- Ethanol metabolism depletes NAD stores[1]
- Results in inhibition of Krebs cycle, depletion of glycogen stores, and ketone formation
- Suppresses gluconeogenesis and may result in hypoglycemia
- High NADH:NAD also results in increased lactate production
- Lactate higher than normal but not as high as in shock or sepsis
- Acetoacetate is metabolized to acetone so elevated osmolal gap may also be seen
Clinical Features
- Nausea (75%)
- Vomiting (73%)
- Abdominal pain (62%)
- Typically, history of binge drinking ending in nausea, vomiting, and decreased intake
- Not hyperosmolar as opposed to DKA
Differential Diagnosis
- Isopropyl Alcohol
- Results in ketosis
- Methanol, Ethylene Glycol
- Do not produce ketosis
- Sepsis
- Salicylate Toxicity
- DKA
- Hyperosmolar hyperglycemic state
- Starvation Ketosis
- Uremia
- Ethanol toxicity
- Alcohol use disorder
- Alcohol withdrawal
- Electrolyte/acid-base disorder
Evaluation
- Anion gap acidosis
- Typically wide anion gap
- Positive serum ketones + lactic acidosis
- Lab measured ketone is acetoacetate
- May miss beta-hydroxybutyrate
- Urine ketones may be falsely negative or low
- Typically normal osmolal gap
- Alcohol level usually zero or not considerably high
- BMP, Mg/phos
- Often have concomitant electrolyte abnormalities
Management
Consider associated diseases (ie pancreatitis, rhabdomyolysis, hepatitis, infections)
- Thiamine (100mg IV or IM)
- Prior to glucose to decrease risk of Wernicke encephalopathy or Korsakoff syndrome
- Hydration (D5NS)
- IVF should include 5% dextrose since there is a lack of glucose
- Large IVF admin does not predispose to cerebral edema
- Glucose stimulates insulin which stops lipolysis
- Oral nutrition if able to tolerate
- Electrolyte replacement
- K, Mag and Phos
- Monitor for signs of alcohol withdrawal
- Consider bicarb if life-threatening acidosis (pH <7.1) unresponsive to fluid therapy
Disposition
- Discharge home after treatment if able to tolerate POs and acidosis resolved
- Consider admission for those with severe volume depletion and/or acidosis
- Hypoglycemia is poor prognostic feature, indicating depleted glycogen stores
See Also
References
- ↑ McGuire LC, Cruickshank AM, Munro PT. Alcoholic ketoacidosis. Emerg Med J. 2006 Jun;23(6):417-20.