Anti-hyperglycemic
Insulin
Oral secretagogue<unk> 
Other
EtOH
B-blocker
ACEI
Acetaminophen (OD)
Insulin
Oral secretagogue<unk> <unk> 
EtOH
B-blocker
ACEI
Acetaminophen (OD)
Critical Illness
Sepsis
MI
Organ Failure
Hepatic failure
Renal failure
Endocrinopathy
Adrenal insufficiency
Seizure
Inborn errors of metabolism
Sepsis
MI
Hepatic failure
Renal failure
Adrenal insufficiency
Insulinoma
Non-islet cell
Insulin/receptor autoantibodies
High tumor burden
Artifactual
Specimen collection
Consumption
Leukemia
Erythrocytosis
Hemolytic disease
Post-surgical
Gastric bypass
Gastrectomy
Pyloroplasty
Starvation
Anorexia nervosa
Specimen collection
Consumption
Leukemia
Erythrocytosis
Hemolytic disease
Leukemia
Erythrocytosis
Hemolytic disease
Gastric bypass
Gastrectomy
Pyloroplasty
Anorexia nervosa
Decreased glucose
Missed meal
Consumption (exercise, illness)
Increased drug
Error (patient, provider)
Intentional overdose
Increased availability
Hepatic failure
Renal failure
Drug interaction
Missed meal
Consumption (exercise, illness)
Error (patient, provider)
Intentional overdose
Increased availability
Hepatic failure
Renal failure
Drug interaction
Hepatic failure
Renal failure
Drug interaction
Sulfonylurea toxicity
Anti-hyperglycemic
Xylazine toxicity
Insulin
Monoamine oxidase inhibitor toxicity
Oral secretagogue
Acetaminophen toxicity
Antimony toxicity