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==Differentiating Diabetic Ketoacidosis From Other Diseases==
==Differentiating Diabetic Ketoacidosis From Other Diseases==
Diabetic ketoacidosis must be differentiated from other diseases causing the following conditions:
Diabetic ketoacidosis must be differentiated from other diseases causing the following conditions:<ref name="urlDiabetic Ketoacidosis: Evaluation and Treatment - American Family Physician">{{cite web |url=http://www.aafp.org/afp/2013/0301/p337.html |title=Diabetic Ketoacidosis: Evaluation and Treatment - American Family Physician |format= |work= |accessdate=}}</ref><ref name="pmid19564476">{{cite journal |vauthors=Kitabchi AE, Umpierrez GE, Miles JM, Fisher JN |title=Hyperglycemic crises in adult patients with diabetes |journal=Diabetes Care |volume=32 |issue=7 |pages=1335–43 |year=2009 |pmid=19564476 |pmc=2699725 |doi=10.2337/dc09-9032 |url=}}</ref><ref name="pmid12668546">{{cite journal |vauthors=Chiasson JL, Aris-Jilwan N, Bélanger R, Bertrand S, Beauregard H, Ekoé JM, Fournier H, Havrankova J |title=Diagnosis and treatment of diabetic ketoacidosis and the hyperglycemic hyperosmolar state |journal=CMAJ |volume=168 |issue=7 |pages=859–66 |year=2003 |pmid=12668546 |pmc=151994 |doi= |url=}}</ref><ref name="pmid18975036">{{cite journal |vauthors=Joseph F, Anderson L, Goenka N, Vora J |title=Starvation-induced true diabetic euglycemic ketoacidosis in severe depression |journal=J Gen Intern Med |volume=24 |issue=1 |pages=129–31 |year=2009 |pmid=18975036 |pmc=2607495 |doi=10.1007/s11606-008-0829-0 |url=}}</ref><ref name="pmid6361416">{{cite journal |vauthors=Williams HE |title=Alcoholic hypoglycemia and ketoacidosis |journal=Med. Clin. North Am. |volume=68 |issue=1 |pages=33–8 |year=1984 |pmid=6361416 |doi= |url=}}</ref><ref name="pmid1554971">{{cite journal |vauthors=Durnas C, Cusack BJ |title=Salicylate intoxication in the elderly. Recognition and recommendations on how to prevent it |journal=Drugs Aging |volume=2 |issue=1 |pages=20–34 |year=1992 |pmid=1554971 |doi= |url=}}</ref><ref name="pmid10970986">{{cite journal |vauthors=Gokel Y, Paydas S, Koseoglu Z, Alparslan N, Seydaoglu G |title=Comparison of blood gas and acid-base measurements in arterial and venous blood samples in patients with uremic acidosis and diabetic ketoacidosis in the emergency room |journal=Am. J. Nephrol. |volume=20 |issue=4 |pages=319–23 |year=2000 |pmid=10970986 |doi=13607 |url=}}</ref><ref name="pmid9587792">{{cite journal |vauthors=Brinkmann B, Fechner G, Karger B, DuChesne A |title=Ketoacidosis and lactic acidosis--frequent causes of death in chronic alcoholics? |journal=Int. J. Legal Med. |volume=111 |issue=3 |pages=115–9 |year=1998 |pmid=9587792 |doi= |url=}}</ref>
* '''<u>Other conditions causing hyperglycemia</u>'''
* '''<u>Other conditions causing hyperglycemia</u>'''
** [[Diabetes mellitus]]
** [[Diabetes mellitus]]
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===Differential diagnosis of increased anion gap metabolic acidosis===
===Differential diagnosis of increased anion gap metabolic acidosis===
*Causes of increased anion gap metabolic acidosis can be differetiated from each other with the help of following alogrhythm:  
*Causes of increased anion gap metabolic acidosis can be differetiated from each other with the help of following alogrhythm:<ref name="pmid17936961">{{cite journal |vauthors=Lim S |title=Metabolic acidosis |journal=Acta Med Indones |volume=39 |issue=3 |pages=145–50 |year=2007 |pmid=17936961 |doi= |url=}}</ref><ref name="pmid23833313">{{cite journal |vauthors=Kraut JA, Nagami GT |title=The serum anion gap in the evaluation of acid-base disorders: what are its limitations and can its effectiveness be improved? |journal=Clin J Am Soc Nephrol |volume=8 |issue=11 |pages=2018–24 |year=2013 |pmid=23833313 |pmc=3817910 |doi=10.2215/CJN.04040413 |url=}}</ref><ref name="pmid24079682">{{cite journal |vauthors=Andersen LW, Mackenhauer J, Roberts JC, Berg KM, Cocchi MN, Donnino MW |title=Etiology and therapeutic approach to elevated lactate levels |journal=Mayo Clin. Proc. |volume=88 |issue=10 |pages=1127–40 |year=2013 |pmid=24079682 |pmc=3975915 |doi=10.1016/j.mayocp.2013.06.012 |url=}}</ref><ref name="pmid1638782">{{cite journal |vauthors=Abuelo JG, Shemin D, Chazan JA |title=Serum creatinine concentration at the onset of uremia: higher levels in black males |journal=Clin. Nephrol. |volume=37 |issue=6 |pages=303–7 |year=1992 |pmid=1638782 |doi= |url=}}</ref><ref name="pmid3054224">{{cite journal |vauthors=Warnock DG |title=Uremic acidosis |journal=Kidney Int. |volume=34 |issue=2 |pages=278–87 |year=1988 |pmid=3054224 |doi= |url=}}</ref>
{{familytree/start}}{{familytree | | | | | | | | | A01 | | | | | |A01=↑ anion gap metabolic acidosis}}
{{familytree/start}}{{familytree | | | | | | | | | A01 | | | | | |A01=↑ anion gap metabolic acidosis}}
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Syed Hassan A. Kazmi BSc, MD [2]

Overview

Diabetic ketoacidosis (DKA) must be differentiated from other conditions presenting with hyperglycemia, ketosis and metabolic acidosis. The differentials include diabetes mellitus, non-ketotic hyperosmolar state, impaired glucose tolerance, ketotic hypoglycemia, alcoholic ketosis, starvation ketosis, lactic acidosis, salicylic acid ingestion, uremic acidosis and drug-induced acidosis. All these conditions may be differentiated on the basis of history findings, clinical features and laboratory abnormalities.

Differentiating Diabetic Ketoacidosis From Other Diseases

Diabetic ketoacidosis must be differentiated from other diseases causing the following conditions:[1][2][3][4][5][6][7][8]

Characteristic Common to DKA Condition History Findings Clinical Features Lab abnormalities
Hyperglycemia Diabetes mellitus
  • Family history of diabetes
  • Obesity (BMI >25 kg/m2)
  • Stress
  • Sedentary lifestyle
  • History of gestational diabetes
  • Polycystic ovarian syndrome
  • Acanthosis nigricans
  • Hypertension (>140/90 mmHg)
  • Polyuria
  • Polydipsia
  • Polyphagia
  • Weight loss
  • Central obesity
  • Autonomic and peripheral neuropathy
  • Vascular occlusion secondary to atherosclerosis (Stroke, myocardial infarction)
  • Renal impairment (microalbuminuria leading to renal failure)
  • Decreased visual acuity (diabetic retionopathy)
  • Increased susceptibility to infections
  • Charcot's joints
  • Hyperglycemia:
    • Fasting blood glucose level: >126 mg/dl
    • Random blood glucose level: >200 mg/dl
  • HbA1C: >6.5 %
  • Urinanalysis may show:
    • Proteinuria
    • Glucosuria
  • Positive antibodies:(Type 1 diabetes)
    • Anti-glutamic acid decarboxylase
    • Anti-islet cell
    • Anti-insulin
Non-ketotic hyperosmolar state
  • Elderly with type 2 diabetes mellitus
  • Undiagnosed type 2 diabetes
  • Prolonged hyperglycemia
  • May have all clinical features of diabetes mellitus plus:
    • Hypotenion
    • Dehydration
    • Tachycardia
    • Decreased mentation
    • Focal neurological abnormalities
  • Hyperglycemia (600-2000 mg/dl)
  • Increased serum osmolarity (330-380 mOsm/kg)
  • Arterial pH >7.3
  • Anion gap normal
  • No ketosis
Impaired glucose tolerance
  • Family history of diabetes
  • Obesity (BMI >25 kg/m2)
  • Stress
  • Sedentary lifestyle
  • History of gestational diabetes
  • Acanthosis nigricans
  • May have all clinical features of diabetes mellitus
  • Hyperglycemia:
    • Fasting blood glucose level: 100-125 mg/dl
    • Oral glucose tolerance test 140-200 mg/dl
Ketosis Alcoholic ketosis
  • Non-diabetic chronic alcohol user
  • Binge drinking history
  • Fasting for 1-2 days after binge drinking
  • Nasuea
  • Vomiting
  • Diffuse abdominal pain
  • Dehydration
  • Stress
  • Anorexia
  • Serum glucose normal (only 10% with serum glucose >250 mg/dl)
  • Serum bicarbonate < 18 mEq/L
  • Arterial pH may show acidosis or may be alkalotic due to respiratory alkalosis
  • Increased anion gap
  • Acetoacetate and beta hydroxybutyrate elevated
Starvation ketosis
  • Several weeks of low caloric intake
  • Malnourishment
  • Halitosis
  • Dehydration
  • Dry coated tongue
  • Confusion
  • Drowsiness
  • Cold extremities
  • Hypotension (postural or supine)
  • Leg cramps
  • Serum glucose normal or hypoglycemia
  • Serum bicarbonate > 18 mEq/L
  • Arterial pH may show acidosis
  • Increased anion gap
Metabolic acidosis Lactic acidosis
  • Hypermetabolic states:
    • Trauma
    • Burns
    • Sepsis
  • Hypoxia
  • Short bowel syndrome
  • Jejuno-ileal bypass surgery
  • Chronic pancreatic insufficiency
  • Chronic renal insufficiency
  • Large carbohydrate intake
  • Carbon monoxide poisoning
  • Drugs ingtake:
    • Cyanide
    • Salicylates
    • Biaguanides
    • INH
    • Anti-retroviral agents
    • Valproic acid
  • COPD
  • Asthma
  • Mesenteric ischemia
  • Neurological:
    • Confusion
    • Stupor
  • Slurred speech
  • Nausea
  • Vomiting
  • Warm extremities
  • Dyspnea
  • Cough
  • Tachycardia
  • Weakness
  • Fatigue
  • Arterial pH <7.3
  • Increased anion gap
  • Increased blood lactate
Salicylic acid ingestion
  • Acute overdose:
    • Young individuals or infants
    • Intentional
    • Suicidal
    • Rapid progression of signs and symptoms
  • Chronic overdose:
    • Therapeutic misadventures
    • Chronic pain disorders
    • Acute lung injury
  • Early symptoms:
    • Nausea
    • Vomiting
    • Anorexia
    • Diaphoresis
    • Tinnitus
    • Hyperventilation
    • Tachycardia
  • Late symptoms:
    • Drowsiness
    • Fatigue
    • Dizziness
    • Confusion
    • Delirium
    • Hallucinations
    • Seizures
    • Hyperthermia
  • Mixed respiratory alkalosis and metabolic acidosis
  • Increased anion gap
  • Hyperkalemia
  • Increased bleeding time, normal PT and APTT
Uremic acidosis
  • Renal failure
    • Pre-renal: Dehydration due to gastroenteritis, diarhhea, hemorrhage, hypovolemia, cardiac failure
    • Renal: Hemolytic uremic syndrome, acute glomerulonephritis, renal necrosis, drugs, sepsis, shock
    • Post-renal: Renal stones, renal tumors, psoterior ureteric valves, renal trauma, renal vein thrombosis
  • Neurological:
    • Delayed tendon reflexes
    • Confusion
    • Headache
    • Seizures
    • Peripheral neuropathy
  • Uremic frost
  • Uremic fetor
  • Hypertension
  • Osteomalacia
  • Muscular weakness
  • Cardiac arrythmias
  • Gout (podagra)
  • Kussmaul breathing
  • Nausea
  • Vomiting
  • Arterial pH < 7.3
  • Increased anion gap
  • Hyperkalemia
  • Hypocalcemia
  • Hyperphosphatemia
  • Secondary hyperparathyroidism
  • Hyperuricemia
  • Hypermagnesemia
Drug-induced acidosis
  • Drug intake:
    • Potassium sparing diuretics (amiloride, triamterene, spironolactone
    • Trimethoprim
    • Pentamidine
    • ACE inhibitors
    • ARBs
    • NSAIDs
    • Cyclosporine
    • Tacrolimus
    • Aspirin
    • Amphotericin B
    • Opiates
    • Anaesthetics
    • Phenobarbital
  • Neurological:
    • Confusion
    • Seizures
  • Nausea
  • Vomiting
  • Chest discomfort
  • Cardiac arrythmias
  • Abdominal pain
  • Arterial pH < 7.3
  • Normal anion gap
  • Increased hepatic transaminases (aspartate aminotrasnferase, alanine aminotransferase)
  • Hyperkalemia (ACE inhibitors, ARBs, NSAIDs, trimethoprim, potassium sparing diuretics)
  • Increased BUN, creatinine

Differential diagnosis of increased anion gap metabolic acidosis

  • Causes of increased anion gap metabolic acidosis can be differetiated from each other with the help of following alogrhythm:[9][10][11][12][13]
 
 
 
 
 
 
 
 
↑ anion gap metabolic acidosis
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
↑ Lactate
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Yes
 
 
 
 
 
 
 
 
 
 
 
No
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Lactic acidosis
 
 
 
 
 
 
 
 
 
 
 
Check for hyperglycemia and ketonuria
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Present
 
 
 
 
 
 
 
 
 
 
 
 
 
Not Present
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Diabetic ketoacidosis
 
 
 
 
 
 
 
 
 
 
 
 
 
↑ BUN, ↑ creatinine and history of hemodyalysis
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Yes
 
 
 
 
 
 
 
 
 
 
No
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Uremic acidosis
 
 
 
 
 
 
 
 
 
 
 
Physical findings include odor of alcohol
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Yes
 
 
 
 
 
 
 
 
 
 
 
 
No
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
↑ Ethanol level in serum or expired air
 
 
 
 
 
 
 
 
 
 
 
 
 
Auditory symptoms present
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Ethanol overdose
 
 
 
 
 
 
 
 
 
 
 
 
 
Salicylic acid overdose


References

  1. "Diabetic Ketoacidosis: Evaluation and Treatment - American Family Physician".
  2. Kitabchi AE, Umpierrez GE, Miles JM, Fisher JN (2009). "Hyperglycemic crises in adult patients with diabetes". Diabetes Care. 32 (7): 1335–43. doi:10.2337/dc09-9032. PMC 2699725. PMID 19564476.
  3. Chiasson JL, Aris-Jilwan N, Bélanger R, Bertrand S, Beauregard H, Ekoé JM, Fournier H, Havrankova J (2003). "Diagnosis and treatment of diabetic ketoacidosis and the hyperglycemic hyperosmolar state". CMAJ. 168 (7): 859–66. PMC 151994. PMID 12668546.
  4. Joseph F, Anderson L, Goenka N, Vora J (2009). "Starvation-induced true diabetic euglycemic ketoacidosis in severe depression". J Gen Intern Med. 24 (1): 129–31. doi:10.1007/s11606-008-0829-0. PMC 2607495. PMID 18975036.
  5. Williams HE (1984). "Alcoholic hypoglycemia and ketoacidosis". Med. Clin. North Am. 68 (1): 33–8. PMID 6361416.
  6. Durnas C, Cusack BJ (1992). "Salicylate intoxication in the elderly. Recognition and recommendations on how to prevent it". Drugs Aging. 2 (1): 20–34. PMID 1554971.
  7. Gokel Y, Paydas S, Koseoglu Z, Alparslan N, Seydaoglu G (2000). "Comparison of blood gas and acid-base measurements in arterial and venous blood samples in patients with uremic acidosis and diabetic ketoacidosis in the emergency room". Am. J. Nephrol. 20 (4): 319–23. doi:13607 Check |doi= value (help). PMID 10970986.
  8. Brinkmann B, Fechner G, Karger B, DuChesne A (1998). "Ketoacidosis and lactic acidosis--frequent causes of death in chronic alcoholics?". Int. J. Legal Med. 111 (3): 115–9. PMID 9587792.
  9. Lim S (2007). "Metabolic acidosis". Acta Med Indones. 39 (3): 145–50. PMID 17936961.
  10. Kraut JA, Nagami GT (2013). "The serum anion gap in the evaluation of acid-base disorders: what are its limitations and can its effectiveness be improved?". Clin J Am Soc Nephrol. 8 (11): 2018–24. doi:10.2215/CJN.04040413. PMC 3817910. PMID 23833313.
  11. Andersen LW, Mackenhauer J, Roberts JC, Berg KM, Cocchi MN, Donnino MW (2013). "Etiology and therapeutic approach to elevated lactate levels". Mayo Clin. Proc. 88 (10): 1127–40. doi:10.1016/j.mayocp.2013.06.012. PMC 3975915. PMID 24079682.
  12. Abuelo JG, Shemin D, Chazan JA (1992). "Serum creatinine concentration at the onset of uremia: higher levels in black males". Clin. Nephrol. 37 (6): 303–7. PMID 1638782.
  13. Warnock DG (1988). "Uremic acidosis". Kidney Int. 34 (2): 278–87. PMID 3054224.

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