Diagnozing Diabetes
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Transcript of Diagnozing Diabetes
DIABETES MELLITUSDIABETES MELLITUS Current diagnostic criteriaCurrent diagnostic criteria
Diabetes symptoms (polyuria, polydipsia, unexplained weight loss) plus: – Random venous plasma glucose 200 mg/dl or– Fasting venous plasma glucose 126 mg/dl or – 2 hour venous plasma glucose 200 mg/dl (after 75 g glucose in
OGTT)
No symptoms: at least two glucose tests on different days within diabetic range
WHO definition, diagnosis and classification of diabetes mellitus and its complications. http://www.diabetes.org.uk/healthcare/5/sum.htm
Classic symptoms of DiabetesClassic symptoms of Diabetes
Excess urine (Polyuria), Excess drinking water
(Polydipsia), Recent weight loss, Blurring of vision, Genital infection
– Balanoposthitis in man,– Vulvovaginitis in women.
Fasting and RandomFasting and Random
FASTING– Overnight fast,– Sample in the morning,– No diet restriction,– Venous blood.
RANDOM– Anytime of the day,– Helpful for
epidemiological purpose,
– No diet restriction,– Venous blood.
GTT - GTT - Diagnostic CriteriaDiagnostic Criteria
Normal– 2h value <140 mg
Borderline– 2h value 140 – 199 mg
Diabetes– 2h 200 mg or more.
Glucose Tolerance Test -Glucose Tolerance Test -ProcedureProcedure
Normal diet for at least 3 days, Overnight fasting, Blood sample for fasting glucose, 75 Gm glucose in 300 ml water to drink over 5 min, Blood sample after 2hr for glucose, Delayed breakfast.
Should not be admitted, No smoking Free from stress Six wks from significant medical illness.
Why the diagnose delayed?Why the diagnose delayed?
Awareness is sub-optimum,
Negligence, Economic restraint, Access to medical
service, Non-specific
presentation.