Metabolic emergencies (peds): Difference between revisions

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== Hypoglycemia ==
==Background==
=== Diagnosis ===
*[[Adrenal Insufficiency]]
*Glucose <45 in symptomatic neonate
*[[Hypoglycemia (peds)]]
*Glucose <35 in asymptomatic neonate
*[[Inborn errors of metabolism]]
*Most common features: vomiting, AMS, poor feeding
**May also see lethargy, apnea, sz


===Etiology===
==References==
<References/>


#Inadequate oral intake
[[Category:Endocrinology]]
#Excess insulin
[[Category:Pediatrics]]
##Newborns of diabetic mothers
#Deficient hyperglycemic hormones (GH or adrenal hormone deficiency)
#Fatty acid oxidation or carbohydrate metabolism disorders
#Prematurity (inadequate glycogen stores)
#Sepsis
 
===Work-Up===
 
*Rapid glucose
*UA
**If ketones: adrenal or GH deficiency, inborn errors of metabolism
**If no ketones: Hyperinsulinemia, fatty acid oxidation defects
*Glucagon 0.3 mg/kg IM or IV
**If BS corrects then likely due to hormonal deficiency (e.g. adrenal insufficiency)
 
===Treatment===
 
{| cellspacing="1" cellpadding="3" border="0" bgcolor="#666666" width="100%"
|- class="font12" style="font-size: 12px; line-height: 17px; margin-top: 0px; margin-bottom: 9px; margin-left: 0px; margin-right: 0px;"
! valign="top" bgcolor="#ffffff" align="left" rowspan="0" | Patient Age
! valign="top" bgcolor="#ffffff" align="left" rowspan="0" | Dextrose Bolus Dose
! valign="top" bgcolor="#ffffff" align="left" rowspan="0" | Dextrose Maintenance Dosage
! valign="top" bgcolor="#ffffff" align="left" rowspan="0" | Other Treatments to Consider
|- class="font12" style="font-size: 12px; line-height: 17px; margin-top: 0px; margin-bottom: 9px; margin-left: 0px; margin-right: 0px;"
| valign="top" bgcolor="#ffffff" class="font12" align="left" rowspan="2" style="color: rgb(51, 51, 51); font-size: 12px; line-height: 17px; margin-top: 0px; margin-bottom: 9px; margin-left: 0px; margin-right: 0px;" | Neonate
| valign="top" bgcolor="#ffffff" class="font12" align="left" rowspan="2" style="color: rgb(51, 51, 51); font-size: 12px; line-height: 17px; margin-top: 0px; margin-bottom: 9px; margin-left: 0px; margin-right: 0px;" | D10 5 mL/kg PO/NG/IV/IO
| valign="top" bgcolor="#ffffff" class="font12" align="left" rowspan="2" style="color: rgb(51, 51, 51); font-size: 12px; line-height: 17px; margin-top: 0px; margin-bottom: 9px; margin-left: 0px; margin-right: 0px;" | 6 mL/kg/h D10
| valign="top" bgcolor="#ffffff" class="font12" align="left" style="color: rgb(51, 51, 51); font-size: 12px; line-height: 17px; margin-top: 0px; margin-bottom: 9px; margin-left: 0px; margin-right: 0px;" | Glucagon, 0.3 milligram/kg IM
|- class="font12" style="font-size: 12px; line-height: 17px; margin-top: 0px; margin-bottom: 9px; margin-left: 0px; margin-right: 0px;"
| valign="top" bgcolor="#ffffff" class="font12" align="left" style="color: rgb(51, 51, 51); font-size: 12px; line-height: 17px; margin-top: 0px; margin-bottom: 9px; margin-left: 0px; margin-right: 0px;" | Hydrocortisone, 25 grams PO/IM/IV/IO
|- class="font12" style="font-size: 12px; line-height: 17px; margin-top: 0px; margin-bottom: 9px; margin-left: 0px; margin-right: 0px;"
| valign="top" bgcolor="#ffffff" class="font12" align="left" rowspan="4" style="color: rgb(51, 51, 51); font-size: 12px; line-height: 17px; margin-top: 0px; margin-bottom: 9px; margin-left: 0px; margin-right: 0px;" | Infant
| valign="top" bgcolor="#ffffff" class="font12" align="left" style="color: rgb(51, 51, 51); font-size: 12px; line-height: 17px; margin-top: 0px; margin-bottom: 9px; margin-left: 0px; margin-right: 0px;" | D10 5 mL/kg PO/NG/IV/IO
| valign="top" bgcolor="#ffffff" class="font12" align="left" rowspan="4" style="color: rgb(51, 51, 51); font-size: 12px; line-height: 17px; margin-top: 0px; margin-bottom: 9px; margin-left: 0px; margin-right: 0px;" | 6 mL/kg/h D10
| valign="top" bgcolor="#ffffff" class="font12" align="left" style="color: rgb(51, 51, 51); font-size: 12px; line-height: 17px; margin-top: 0px; margin-bottom: 9px; margin-left: 0px; margin-right: 0px;" | Glucagon, 0.3 milligram/kg IM
|- class="font12" style="font-size: 12px; line-height: 17px; margin-top: 0px; margin-bottom: 9px; margin-left: 0px; margin-right: 0px;"
| valign="top" bgcolor="#ffffff" class="font12" align="left" style="color: rgb(51, 51, 51); font-size: 12px; line-height: 17px; margin-top: 0px; margin-bottom: 9px; margin-left: 0px; margin-right: 0px;" | ''or''&nbsp;
| valign="top" bgcolor="#ffffff" class="font12" align="left" rowspan="3" style="color: rgb(51, 51, 51); font-size: 12px; line-height: 17px; margin-top: 0px; margin-bottom: 9px; margin-left: 0px; margin-right: 0px;" | Hydrocortisone, 25 grams PO/IM/IV/IO
|- class="font12" style="font-size: 12px; line-height: 17px; margin-top: 0px; margin-bottom: 9px; margin-left: 0px; margin-right: 0px;"
| valign="top" bgcolor="#ffffff" class="font12" align="left" style="color: rgb(51, 51, 51); font-size: 12px; line-height: 17px; margin-top: 0px; margin-bottom: 9px; margin-left: 0px; margin-right: 0px;" | D25 2 mL/kg
|- class="font12" style="font-size: 12px; line-height: 17px; margin-top: 0px; margin-bottom: 9px; margin-left: 0px; margin-right: 0px;"
| valign="top" bgcolor="#ffffff" class="font12" align="left" style="color: rgb(51, 51, 51); font-size: 12px; line-height: 17px; margin-top: 0px; margin-bottom: 9px; margin-left: 0px; margin-right: 0px;" | &nbsp;
|- class="font12" style="font-size: 12px; line-height: 17px; margin-top: 0px; margin-bottom: 9px; margin-left: 0px; margin-right: 0px;"
| valign="top" bgcolor="#ffffff" class="font12" align="left" rowspan="2" style="color: rgb(51, 51, 51); font-size: 12px; line-height: 17px; margin-top: 0px; margin-bottom: 9px; margin-left: 0px; margin-right: 0px;" | Child
| valign="top" bgcolor="#ffffff" class="font12" align="left" rowspan="2" style="color: rgb(51, 51, 51); font-size: 12px; line-height: 17px; margin-top: 0px; margin-bottom: 9px; margin-left: 0px; margin-right: 0px;" | D25 2 mL/kg PO/NG/IV/IO
| valign="top" bgcolor="#ffffff" class="font12" align="left" rowspan="2" style="color: rgb(51, 51, 51); font-size: 12px; line-height: 17px; margin-top: 0px; margin-bottom: 9px; margin-left: 0px; margin-right: 0px;" | 6 mL/kg/h D10 for the first 10 kg + 3 mL/kg/h for 11–20 kg + 1.5 mL/kg/h for each additional kg >20 kg
| valign="top" bgcolor="#ffffff" class="font12" align="left" style="color: rgb(51, 51, 51); font-size: 12px; line-height: 17px; margin-top: 0px; margin-bottom: 9px; margin-left: 0px; margin-right: 0px;" | Glucagon, 0.3 milligram/kg/IM
|- class="font12" style="font-size: 12px; line-height: 17px; margin-top: 0px; margin-bottom: 9px; margin-left: 0px; margin-right: 0px;"
| valign="top" bgcolor="#ffffff" class="font12" align="left" style="color: rgb(51, 51, 51); font-size: 12px; line-height: 17px; margin-top: 0px; margin-bottom: 9px; margin-left: 0px; margin-right: 0px;" | Hydrocortisone, 50 grams PO/IM/IV/IO
|- class="font12" style="font-size: 12px; line-height: 17px; margin-top: 0px; margin-bottom: 9px; margin-left: 0px; margin-right: 0px;"
| valign="top" bgcolor="#ffffff" class="font12" align="left" rowspan="2" style="color: rgb(51, 51, 51); font-size: 12px; line-height: 17px; margin-top: 0px; margin-bottom: 9px; margin-left: 0px; margin-right: 0px;" | Adolescent
| valign="top" bgcolor="#ffffff" class="font12" align="left" rowspan="2" style="color: rgb(51, 51, 51); font-size: 12px; line-height: 17px; margin-top: 0px; margin-bottom: 9px; margin-left: 0px; margin-right: 0px;" | —
| valign="top" bgcolor="#ffffff" class="font12" align="left" rowspan="2" style="color: rgb(51, 51, 51); font-size: 12px; line-height: 17px; margin-top: 0px; margin-bottom: 9px; margin-left: 0px; margin-right: 0px;" | 6 mL/kg/h D10 for the first 10 kg + 3 mL/kg/h for 11–20 kg + 1.5 mL/kg/h for each additional kg >20 kg
| valign="top" bgcolor="#ffffff" class="font12" align="left" style="color: rgb(51, 51, 51); font-size: 12px; line-height: 17px; margin-top: 0px; margin-bottom: 9px; margin-left: 0px; margin-right: 0px;" | Glucagon, 0.3 milligram/kg IM
|- class="font12" style="font-size: 12px; line-height: 17px; margin-top: 0px; margin-bottom: 9px; margin-left: 0px; margin-right: 0px;"
| valign="top" bgcolor="#ffffff" class="font12" align="left" style="color: rgb(51, 51, 51); font-size: 12px; line-height: 17px; margin-top: 0px; margin-bottom: 9px; margin-left: 0px; margin-right: 0px;" | Hydrocortisone, 100 grams PO/IM/IV/IO
|}
 
==Inborn Errors of Metabolism==
===Background===
*Clinical manifestations are due to accumulation of toxic metabolites
*Must rule-out sepsis (more common in these pts)
 
===Diagnosis===
*Encephalopathy
*Hypoglycemia
*Hepatic dysfunction
*Nonspecific complaints: lethargy, irritability, N/V
 
===Work-Up===
*Glucose level
*UA (ketones)
*Chemistry
**Anion gap a/w organic acidemias
*LFT
*Ammonia
**Should be <200 in normal neonate (higher suggests urea cycle disorders)
*Lactate
*VBG
 
===Treatment===
#NS 20 mL/kg boluses
##Increase renal excretion of toxic metabolites
#Keep NPO
##Removes potential inciting metabolic substrates
##Provide D10 at 2x usual maintenance rates
#Hyperammonemia
##<500
###(Na phenylacetate & Na benzoate) 250mg/kg in D10 over 90min; then 250 mg/kg/d infusion
###Arginine 210mg/kg IV/IO in D10 over 90min; then 210 mg/kg/d infusion
##>600
###Dialysis
#Cerebral edema
##Hyperammonemia is risk factor
###Give mannitol 0.5gm/kg IV/IO
###Do not give steroids (worsens hyperammonemia)
 
 
== Source ==
Tintinalli
 
[[Category:Peds]]

Latest revision as of 15:59, 22 March 2016