Effect Of Milk Consumption Before Medical Check-up?
Good afternoon doctor, I want to ask. Usually, before I check my blood, my mother is told to fast for 12 hours. But may drink water. For example, how can we drink milk during fasting? What is the effect on the results of blood tests and other MCUs? Thank you doctor
Good afternoon, thank you for asking at HealthReplies.com. We understand your confusion. Prompts to fast when going for an MCU or medical check-up, the connection is because in the MCU there is a laboratory examination whose results will be affected by our condition whether fasting or not, for example such as fasting blood sugar, triglycerides, liver function, cholesterol, HDL and LDL (component of body fat).
These results may be higher than normal if we do not fast, so it is recommended to fast so that the results are not biased and appropriate to our true condition, not because of the influence of the food or drinks we consume at that time. So actually, the fasting recommendation is because there is a laboratory examination. If your MCU examination does not include a laboratory examination, then you do not have to fast.
Then to still be allowed to drink water, this is because water is neutral in nature, does not contain calories, sugar, fat, etc., so it will not change anything in the body. Thus, the results of the laboratory will not change anyway. But besides water, for example milk, coffee, syrup and so on, there are various kinds of ingredients that can affect laboratory results, and therefore are prohibited.
That's why in your case, if you consume other than water in the range where you should fast, it's easy to say that your MCU laboratory results are invalid and can't be trusted, maybe even have to be repeated if you really want to know how you really are. But other MCU results such as heart records and chest X-rays, if you do, are not affected by fasting status or not so the results can still be trusted. So, hopefully answering your question.