These investigations may be ordered by your local GP.

These basic tests includes:

Blood tests (FBE, ELFT, TFT, calcium, vitamin D, iron, folate, vitamin B12, zinc, magnesium, random blood glucose, fasting cholesterol and triglycerides).

HbA1C or ral glucose tolerance test if necessary (if there is elevation of random or fasting blood glucose not sufficient to diagnose diabetes mellitus).

ECG

Sleep studies if necessary.

*Note: referral to a specialist (e.g. cardiologist, respiratory physician, endocrinologist, etc.) may be necessary for some patients before bariatric surgery.

*Note: vitamin or mineral deficiency should be corrected before bariatric surgery.

Patients who are deficient in vitamin or minerals (eg. iron or vitamin D) will need to continue with post op supplements.