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Gestational
diabetes (Risk factors (Previous gestational DM, FH DM (1st…
Gestational
diabetes
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Risk factors
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Ethnicity
(S Asia, Black Caribbean, Middle East)
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Diagnosis
Examination
Abdominal: obesity, large for GA
Investigations
Urine
Dipstick (pre-eclampsia, nephropathy, nUTI)
MCS (infection)
Bloods
FBC, U+E, LFTs, glucose, lipids
Bedside
Obs (sats, RR, HR, BP, temp)
Height, weight (BMI)
Special test - OGTT
Overnight fast for 8h (water only, no smoking)
75g glucose in 250mL water
Measure plasma glucose at 1 and 2h
Gestational DM: fasting >5.1, 1h >10, 2h>8.5
DM: fasting>7.0, 2h>11.1
IGT: fasting 6-7, 2h 7.8-11.1
History
POH
Gravity/parity, prev DM/complications,
deliveries, gestation, weight (macrosomia)
PGH
Disorders, menses, contraception,
STIs, smears
Current pregnancy
Scans, bloods, foetal movements,
general health
PMH
Known DM, other conditions,
prev surgeries
PC/HPC
Thirst, polyuria, polydipsia
DH
Current meds, allergies
SH
Occupation, smoking, alcohol
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Complications
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Maternal
50% risk developing T2DM over next 25y
(reduced if diet, exercise, weight loss etc)