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5 Cards in this Set

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Diagnosis of diabets mellitus?
Symptoms (i.e. thirst-polydipsia, polyuria, weight loss, visual blurring, genital thrush, lethargy)

+

fasting glucose > 7mmol/L

or

Random > 11mmol/L

WITHOUT SYMPTOMS

Need 2 separate tests showing fasting > 7mmol/L
Random > 11mmol/L
Glucose tolerance test > 11mmol/L at 2hrs
Diagnosis impaired glucose tolerance
Fasting < 7mmol/L

but

OGTT 2hrs > 7.8 but < 11mmol/L
Diagnosis impaired fasting glucose
Fasting glucose > 6mmol/L but <7mmol/L
Diagnosis acromegaly
Normal people OGTT results in fall GH so they are usually undetectable i.e. <0.5mmol/L

If > 2mmol/L then Acromegaly
Diagnosing diabetes insipidus
Urine osmolality is usually tightly controlled between 285-295mOsmol/kg

In DI osmolality is usually low < 400mOsmol and cannot be concentrated therefore early morning urine testing is best test