What are the symptoms of Diabetic Ketoacidosis (DKA)?

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From the Guidelines

Diabetic ketoacidosis (DKA) symptoms include nausea, vomiting, Kussmaul respirations, dehydration, and altered mental status, as a result of absolute or relative insulin deficiency leading to fat breakdown and acidosis 1. These symptoms can lead to severe morbidity and mortality if not promptly treated.

  • The symptoms of DKA can be categorized into several key areas, including:
    • Gastrointestinal symptoms: nausea, vomiting
    • Respiratory symptoms: Kussmaul respirations
    • Cardiovascular symptoms: dehydration
    • Neurological symptoms: altered mental status
  • It is essential to recognize these symptoms early, as DKA can progress rapidly and lead to life-threatening complications, such as cerebral edema and cardiac arrhythmias 1.
  • The management of DKA requires prompt treatment with insulin, fluids, and electrolyte replacement to prevent serious complications and improve patient outcomes.
  • Prompt medical attention is crucial for patients experiencing DKA symptoms, as timely intervention can significantly reduce the risk of morbidity and mortality 1.

From the FDA Drug Label

The first symptoms of DKA usually come on gradually, over a period of hours or days, and include a drowsy feeling, flushed face, thirst, loss of appetite, and fruity odor on the breath. Early signs of diabetic ketoacidosis include glycosuria and ketonuria Polydipsia, polyuria, loss of appetite, fatigue, dry skin, abdominal pain, nausea and vomiting and compensatory tachypnea come on gradually, usually over a period of some hours or days, in conjunction with hyperglycemia and ketonemia.

DKA symptoms include:

  • Drowsy feeling
  • Flushed face
  • Thirst
  • Loss of appetite
  • Fruity odor on the breath
  • Polydipsia
  • Polyuria
  • Fatigue
  • Dry skin
  • Abdominal pain
  • Nausea and vomiting
  • Compensatory tachypnea These symptoms can occur over a period of hours or days 2, 2.

From the Research

DKA Symptoms

The symptoms of Diabetic Ketoacidosis (DKA) include:

  • Polyuria and polydipsia, which are the most common symptoms 3
  • Nausea, vomiting, abdominal pain, weight loss, severe fatigue, dyspnea, and preceding febrile illness 3
  • Hyperglycemia (blood glucose greater than 250 mg/dL), although recent guidelines have de-emphasized this due to the increasing incidence of euglycemic DKA 3
  • Metabolic acidosis (pH less than 7.3, serum bicarbonate less than 18 mEq/L, anion gap greater than 10 mEq/L) 3, 4
  • Elevated serum or urine ketones 3, 4

Common Presentations

DKA can present in various ways, including:

  • As the initial presentation of diabetes, especially in young children 3
  • In patients with type 1 and type 2 diabetes resulting from an absolute or relative insulin deficiency 3
  • Precipitated by factors such as infection, which is a common precipitating factor 5

Diagnosis and Treatment

Diagnosis of DKA involves evaluating the patient's symptoms, laboratory results, and medical history 3, 4, 6, 7, 5 Treatment involves:

  • Fluid and electrolyte replacement 3, 4, 6, 7, 5
  • Insulin therapy 3, 4, 6, 7, 5
  • Treatment of precipitating causes 3, 4, 6, 7, 5
  • Close monitoring to adjust therapy and identify complications 3, 4, 6, 7, 5

References

Guideline

Guideline Directed Topic Overview

Dr.Oracle Medical Advisory Board & Editors, 2025

Research

Diabetic Ketoacidosis: Evaluation and Treatment.

American family physician, 2024

Research

Diabetic ketoacidosis.

Nature reviews. Disease primers, 2020

Research

Overview of the diagnosis and management of diabetic ketoacidosis.

The American journal of the medical sciences, 2006

Research

Management of diabetic ketoacidosis.

Advanced emergency nursing journal, 2012

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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