Clinical Presentation and Diagnostic Approach to Hypoglycemia in Adults Without Diabetes Mellitus
Abstract
Objective To review the clinical presentation, causes, and diagnostic approach to spontaneous hypoglycemia in adults without diabetes mellitus. Methods A literature review was performed using the PubMed and Google Scholar databases. Results Hypoglycemia is uncommon in people who are not on glucose-lowering medications. Under normal physiologic conditions, multiple neural and hormonal counterregulatory mechanisms prevent the development of abnormally low levels of plasma glucose. If spontaneous hypoglycemia is suspected, the Whipple triad should be used to confirm hypoglycemia before pursuing further diagnostic workup. The Whipple criteria include the following: (1) low levels of plasma glucose, (2) signs or symptoms that would be expected with low levels of plasma glucose, and (3) improvement in those signs or symptoms when the level of plasma glucose increases. Spontaneous hypoglycemia can be caused by conditions that cause endogenous hyperinsulinism, including insulinoma, postbariatric hypoglycemia, and noninsulinoma pancreatogenous hypoglycemia. Spontaneous hypoglycemia can also be seen with critical illness, hepatic or renal dysfunction, hormonal deficiency, non-diabetes-related medications, and non-islet cell tumors. The initial diagnostic approach should begin by obtaining a detailed history of the nature and timing of the patient's symptoms, medications, underlying comorbid conditions, and any acute illness. A laboratory evaluation should be conducted at the time of th…
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Symptoms of hypoglycemia can usually be categorized as neurogenic and neuroglycopenic.
“Symptoms can usually be categorized as neurogenic and neuroglycopenic (Table 1) [3].”
From Non-Diabetic Hypoglycemia: Evaluation and Management in Adults (2025) · cites this paper as [3]
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Non-Diabetic Hypoglycemia: Evaluation and Management in Adults
Looi, E., & Lawler, H. M. (2025) · Journal of Clinical Medicine · doi:10.3390/jcm14134393 · Cited by 10 · see citing works
“Symptoms can usually be categorized as neurogenic and neuroglycopenic (Table 1) [3].”
- Authors
- Palani, G., Stortz, E., & Moheet, A.
- Affiliations
- University of Minnesota (US)
- Corresponding author
- Moheet, Amir
- Venue
- Endocrine Practice
- Publisher
- Elsevier BV
- Published
- 2023-04
- Volume
- 29
- Issue
- 4
- Pages
- 286-294
- ISSN
- 1530-891X (ISSN-L)
- OpenAlex
- W4310701161
- Cited by
- 29
- References
- 19
- Citations by year
- 2026: 9 · 2025: 10 · 2024: 8 · 2023: 2
- FWCI
- 0.71
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Endocrine Practice (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Management and Research
- Health Sciences › Medicine › Surgery › Pancreatic function and diabetes
- Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Neurological and metabolic disorders
- Keywords
- spontaneous hypoglycemia, non-diabetic hypoglycemia, Whipple triad, endogenous hyperinsulinism, insulinoma, counterregulatory response, diagnostic workup, mixed meal tolerance test, critical illness, liver dysfunction, renal dysfunction, hormone deficiency, drug-induced hypoglycemia
- MeSH terms
- Adult, Blood Glucose, Diabetes Mellitus, Humans, Hypoglycemia, Insulinoma, Pancreatic Neoplasms
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