We perform some analyses on the samples and measurments that we took during your visit and we send these results to you. We will send you a summary of your own results including measurements of cholesterol, triglycerides, fasting blood glucose, blood pressure and body mass index.
When we have the results of your visit, it is possible that we’ll invite you back for a second visit, which would involve a fat biopsy.
The procedure is carried out by one of the trained study nurses or a study doctor. We take two small samples of fat, one from your tummy and one from your buttock. We use local anaesthetic to numb the skin and fat underneath, which may cause a momentary sting. The biopsy would then be taken by inserting a needle into the fat tissue and applying suction through the needle. Approximately 1 gram of tissue is taken out. This procedure will take about 45 minutes. For further information please see the Supplementary Information leaflet (pdf).
We might also ask you to come back for an assessment of your habitual daily energy expenditure, which would involve wearing a pedometer-like device for 5 days.
Obviously, at any point, you are completely free to state that you are not willing to participate, and you should not feel that you have to participate just because you have previously donated a blood sample.
