diabetes

Question 1

HbA1c diabetes thresholds

Answer 1

glycated haemoglobin
diabetes = >6.5%
prediabetes = >6%

Question 2

venous BGC diabetes thresholds

Answer 2

fasting = >7mmol/L (>6.1 indicates prediabetes)
random = >11mmol/L

Question 3

OGTT diabetes thresholds

Answer 3

venous BGC 2 hours after a 75g oral glucose tolerance test
diabetes threshold >11.1mmol/L
prediabetes threshold >7.8

Question 4

times when HbA1c may be inaccurate

Answer 4

conditions affecting blood cell survival time or non-enzymatic glycation of haemoglobin: haemolytic anaemia, severe kidney impairment, severe liver disease and anaemia of chronic disease
patients undergoing regular phlebotomy eg. for management of haemochromatosis, regular blood donors)
pregnant or first 3 months post partum due to haemodilution of pregnancy and peripartum blood loss
haemoglobinopathies

Question 5

should OGTT be used to check for type 1 DM

Answer 5

no

Question 6

who should use the AUSDRISK tool

Answer 6

use every 3 years in non-indigenous adults over the age of 40 years, to identify who is at high risk of developing type 2 diabetes