DKA 1 Flashcards
Diabetic Ketoacidosis: metabolic ? in which ? is associated with metabolic ? due to greatly raised ? levels.
It is associated with ?, but can rarely occur in ?.
emergency hypergly acidosis ketone t1 t2
Accumulation of ? bodies causes a metabolic ?.
o They can be detected on the ? and in the ?.
Respiratory compensation leads to ?.
Acidosis causes ?, and further ?/? loss.
ketone acidosis breath urine hyperventilation vomiting fluid/E-
? perfusion falls, leading to impaired excretion of the ? H+ and
ketones.
o There is increased excretion of ? and ?.
o Despite a significant total body deficit of K+ ? serum K+ is typically normal, or even elevated (?-hyperkalaemia).
o This is due to ? ? of K+ in response to acidosis & insulin deprivation
o Serum K+ levels will then usually ? during treatment as the exogenous ? drives K+ into cells.
o If serum K+ is not monitored and replaced as needed, life-threatening
? may develop.
renal raised na k initial pseudo extracellular migration fall insulin hypokalaemia
Common reasons for DKA development;
Previously ? ?.
Interruption of ? therapy.
The stress of intercurrent ?/?.
unDx DM
insulin
illness/surgery
Clinical presentation; Prostration. (extreme ?) ? respiration: air ?. ? & ?. ? pain. Confusion/ ?.
weakness kussmaul hunger N+V abdo stupor
On examination there may be evidence of marked ?, with the ? of ketones on the ?. There is often a history of marked ? .
dehydration
smell
breath
polyuria
Diagnosis (? ? required);
- Blood glucose >?mmol/L.
- ——a. or previously known diabetes. - Capillary ketones >?mmol/L.
- ——a. or Ketones >?+ in urine. - Venous pH .
- ——a. or venous ? <15 mmol/L.
all 3 11 3 2 7.35 bicarb
Essential investigations;
?, ?, blood ?.
? Blood ?: ? puncture not generally required.
o Metabolic ? with a ? anion gap.
???/ ? XR /?/ ? test based on clinical suspicion.
o N.b. raised ? ? ? is common, as is raised ?
u+E creatinine glucose VBG arterial acidosis raised ECG Chest Cultures pregnancy WCC amylase
Severity is determined by ? rather than blood glucose;
Mild: > ?.
Moderate: ?-?
Severe:
- 3
- 1-7.3
- 1