Gestational diabetes
Screening
A number of screening and diagnostic tests have been used to look for high levels of glucose in plasma or serum in defined circumstances.

Gestational diabetes

Section Title: Screening
Table Section Text: A number of screening and diagnostic tests have been used to look for high levels of glucose in plasma or serum in defined circumstances.

Condition	2-hour glucose	Fasting glucose	HbA1c

Unit	mmol/l(mg/dl)	mmol/l(mg/dl)	mmol/mol	DCCT %

Normal	<7.8 (<140)	<6.1 (<110)	<42	<6.0

Impaired fasting glycaemia	<7.8 (<140)	≥6.1(≥110) & <7.0(<126)	42-46	6.0–6.4

Impaired glucose tolerance	≥7.8 (≥140)	<7.0 (<126)	42-46	6.0–6.4

Diabetes mellitus	≥11.1 (≥200)	≥7.0 (≥126)	≥48	≥6.5

Sentence(s)

When the plasma glucose level is found to be higher than 126 mg/dl (7.0 mmol/l) after fasting, or over 200 mg/dl (11.1 mmol/l) on any occasion and if this is confirmed on a subsequent day, the diagnosis of GDM is made and no further testing is required.

final_sentence: When the plasma glucose level is found to be higher than 126 mg/dl (7.0 mmol/l) after fasting, or over 200 mg/dl (11.1 mmol/l) on any occasion and if this is confirmed on a subsequent day, the diagnosis of GDM is made and no further testing is required.