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Diabetic Ketoacidosis Management (ADA/EASD/JBDS 2024 Consensus)

Diabetic Ketoacidosis Management (ADA/EASD/JBDS 2024 Consensus): Suspected DKA → Confirm DKA Diagnosis → Assess DKA Severity → 1. IV Fluid Resuscitation...

Pathway Overview

17 steps

Algorithm Steps

17 total

  1. 01Start

    Suspected DKA

    Hyperglycemia + Ketosis + Acidosis

  2. 02Action

    Confirm DKA Diagnosis

    Check diagnostic criteria

    • Glucose: typically >250 mg/dL (may be lower in euglycemic DKA)
    • pH <7.3 and/or HCO3 <18 mEq/L
    • Ketones: β-hydroxybutyrate >3.0 mmol/L or urine ketones moderate-large
    • Anion gap >10-12
    • Consider euglycemic DKA if on SGLT2 inhibitor
  3. 03Decision

    Assess DKA Severity

    Mild/Moderate vs Severe

    • MILD: pH 7.25-7.30, HCO3 15-18, alert
    • MODERATE: pH 7.0-7.24, HCO3 10-14, alert/drowsy
    • SEVERE: pH <7.0, HCO3 <10, stupor/coma
  4. 04Action

    1. IV Fluid Resuscitation

    Start immediately - do not delay for insulin

    • 0.9% NaCl: 1-1.5 L in first hour (15-20 mL/kg)
    • Then 250-500 mL/hr based on hydration status
    • Switch to 0.45% NaCl if corrected Na+ normal/elevated
    • Add D5 when glucose <200 mg/dL
    • Typical deficit: 3-6 liters
  5. 05Decision

    Serum K+ Level?

    Check K+ BEFORE starting insulin

    • Total body K+ depleted despite serum level
    • K+ will drop rapidly with insulin therapy
  6. 06Warning

    K+ <3.3 mEq/L

    HOLD INSULIN until K+ ≥3.3

    • Replace K+ aggressively (20-40 mEq/hr)
    • Cardiac monitoring essential
    • Recheck K+ every 1-2 hours
    • DO NOT give insulin until K+ ≥3.3
  7. 07Action

    2. Insulin Therapy

    Start after fluid bolus and K+ assessment

    • Regular insulin IV: 0.1 units/kg bolus, then 0.1 units/kg/hr
    • OR 0.14 units/kg/hr continuous (no bolus)
    • Target glucose drop: 50-70 mg/dL/hr
    • If glucose not falling, double rate
    • When glucose <200, reduce to 0.02-0.05 units/kg/hr + D5
  8. 08Decision

    pH <6.9?

    Consider bicarbonate only in severe acidosis

  9. 09Action

    Bicarbonate Therapy

    For pH <6.9 only (controversial)

    • 100 mEq NaHCO3 in 400 mL water + 20 mEq KCl
    • Infuse over 2 hours
    • Repeat if pH still <7.0
    • NOT recommended if pH ≥6.9
  10. 10Action

    Ongoing Monitoring

    Frequent labs and clinical assessment

    • BMP: every 2-4 hours initially
    • Glucose: every 1 hour
    • β-hydroxybutyrate: every 2-4 hours (preferred over anion gap)
    • Venous pH: every 2-4 hours until stable
    • Fluid balance, urine output, mental status
  11. 11Action

    Identify Precipitant

    The 5 I's and other causes

    • Infection (UTI, pneumonia, skin)
    • Infarction (MI, stroke)
    • Insulin omission/non-adherence
    • Intoxication (alcohol, drugs)
    • Infant (pregnancy)
    • Also: new-onset T1DM, pancreatitis, meds (steroids, SGLT2i)
  12. 12Decision

    DKA Resolution?

    All criteria must be met

    • Glucose <200 mg/dL
    • Anion gap <12 OR β-hydroxybutyrate <0.6 mmol/L
    • pH ≥7.3 and HCO3 ≥15
    • Patient able to eat
  13. 13Action

    Transition to SubQ Insulin

    Overlap IV and SubQ by 1-2 hours

    • Give basal insulin (glargine/detemir) 1-2 hrs before stopping drip
    • Calculate total daily dose based on drip rate
    • Resume home regimen if appropriate
    • NEW diagnosis: 0.5-0.8 units/kg/day total
    • Identify and treat precipitant
  14. 14Outcome

    DKA Resolved

    Continue monitoring, diabetes education

  15. Path rejoins step 10Shared downstream outcome
  16. Path rejoins step 10Shared downstream outcome
  17. 15Action

    K+ 3.3-5.3 mEq/L

    Add K+ to fluids + start insulin

    • Add 20-30 mEq KCl per liter of fluid
    • Target K+ 4-5 mEq/L
    • Monitor K+ every 2-4 hours
  18. Path rejoins step 07Shared downstream outcome
  19. 16Action

    K+ >5.3 mEq/L

    Hold K+, start insulin, recheck frequently

    • Do not add K+ to fluids initially
    • K+ will drop with insulin/fluids
    • Recheck every 2 hours
    • ECG monitoring
  20. Path rejoins step 07Shared downstream outcome
  21. 17Outcome

    Complicated Course

    ICU for severe DKA, cerebral edema, ARDS

Guideline Source

Management of Hyperglycemic Crises: Diabetic Ketoacidosis and Hyperglycemic Hyperosmolar State: A Scientific Statement From the American Diabetes Association, European Association for the Study of Diabetes, and the Joint British Diabetes Societies

DOI: 10.2337/dci24-0032View Guideline

Clinical Safety Information

Clinical Decision Support — Not a Substitute for Clinical Judgment

Individual patient factors may require deviation from these recommendations.

Known Limitations

  • Fluid rates may need adjustment in elderly, cardiac, or renal disease
  • Insulin sensitivity varies - monitor closely and adjust
  • Cerebral edema risk in children/young adults - different protocols apply
  • Euglycemic DKA (SGLT2i-related) may have normal glucose
  • Concurrent HHS may require modified approach

Applicable Regions

USEUUKInternational

EU: EASD concordant; fixed-rate insulin infusion (FRII) used in some centers

UK: JBDS protocol uses FRII at 0.1 units/kg/hr; emphasizes ketone monitoring

US: ADA guidelines; insulin and potassium protocols standard

International: Adapt to local insulin availability; frequent K+ monitoring critical

Version 1Next review: 2027-01-01

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Frequently Asked Questions

What is the Diabetic Ketoacidosis Management (ADA/EASD/JBDS 2024 Consensus)?

The Diabetic Ketoacidosis Management (ADA/EASD/JBDS 2024 Consensus) is a emergency clinical algorithm for Emergency Medicine. It provides a structured decision tree to guide clinical decision-making, based on Management of Hyperglycemic Crises: Diabetic Ketoacidosis and Hyperglycemic Hyperosmolar State: A Scientific Statement From the American Diabetes Association, European Association for the Study of Diabetes, and the Joint British Diabetes Societies.

What guideline is the Diabetic Ketoacidosis Management (ADA/EASD/JBDS 2024 Consensus) based on?

This algorithm is based on Management of Hyperglycemic Crises: Diabetic Ketoacidosis and Hyperglycemic Hyperosmolar State: A Scientific Statement From the American Diabetes Association, European Association for the Study of Diabetes, and the Joint British Diabetes Societies (DOI: 10.2337/dci24-0032).

What are the limitations of the Diabetic Ketoacidosis Management (ADA/EASD/JBDS 2024 Consensus)?

Known limitations include: Fluid rates may need adjustment in elderly, cardiac, or renal disease; Insulin sensitivity varies - monitor closely and adjust; Cerebral edema risk in children/young adults - different protocols apply; Euglycemic DKA (SGLT2i-related) may have normal glucose; Concurrent HHS may require modified approach. Individual patient factors may require deviation from these recommendations.

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