Description

Glutaric Aciduria Type I (GA-I) is a rare inherited metabolic disorder of amino acid catabolism. It may be associated with encephalopathic crises, especially during periods of increased catabolism.


Indications for inpatient emergency care:

(1) recurrent vomiting

(2) recurrent diarrhea

(3) reduced nutrient intake

(4) high fever

(5) neurologic deterioration

(6) failure of outpatient management

 

Protocol:

(1) Give intravenous glucose to provide sufficient energy supply, adjusted for age.

(2) Provide insulin if there is persistent hyperglycemia or glucosuria.

(3) Stop natural protein intake for 24 hours then reintroduce in stepwise fashion.

(4) Provide lysine-free amino acid maintenance if tolerated.

(5) Provide carnitine IV (100 mg per kg per day if < 4 years of age; 50-100 if 4-6 years; 30-50 if > 6 years).

(6) Antipyretics if body temperature > 38.5°C (acetaminophen, ibuprofen).

(7) Sodium bicarbonate can be given IV if the patient shows acidosis.

 

Age

Glucose in g per kg per day

< 1 year

12 to 15

1 to 3 years

10 to 12

3 to 6 years

8 to 10

> 6 years

age adjusted

 


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