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Pancreatitis Clinical Pathway, Emergency Department and Inpatient – Laboratory Studies

Pancreatitis Clinical Pathway — Emergency Department and Inpatient

Initial Laboratory Studies

Amylase
Lipase
  • Elevation > 3x the upper limit of normal is consistent with a diagnosis of acute pancreatitis
  • Degree of enzyme elevation does not correlate with disease severity
  • Amylase rises rapidly and may fall within the first 48 hrs of pancreatitis
  • Lipase rises more slowly but may remain elevated for weeks after the initial pancreatic injury
  • Enzymes may be elevated in children with chronic vomiting or gastritis
CMP
GGT
  • Electrolytes may be deranged depending on duration of symptoms and vomiting
  • Initial BUN elevation correlates with disease severity
    • Follow serially to assess severity and response to therapy
  • Hypoalbuminemia may be followed serially to assess severity
  • Hypercalcemia is a rare cause of acute pancreatitis
  • Aminotransferase (AST/ALT) elevation, hyperbilirubinemia, and elevated alkaline phosphatase or GGT suggest an obstructive process such as cholelithiasis or autoimmune pancreatitis
Magnesium
Phosphorus
Not routinely ordered except in the setting of sepsis or oncologic diagnosis
CBC with Differential
  • Leukocyte derangements may suggest an infectious etiology or trigger for acute pancreatitis
  • Children with necrotizing pancreatitis may have life-threatening intra-abdominal bleeding, hemoglobin may suggest blood loss or serve as a baseline for serial measurements
  • Eosinophilia may indicate a parasitic etiology
Urinalysis Followed serially to assess fluid status and response to hyperhydration
Blood Culture
Fungal Culture
Not routinely ordered unless febrile or clinical suspicion for sepsis
IgG Subtypes
Celiac Profile
Acylcarnitine Profile
Plasma Amino Acids
Urine Organic Acids
Stool Ova and Parasites
Additional labs for acute recurrent pancreatitis

 

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