It’s the morning of your blood work, and your doctor asked you to fast before the test, let’s assume for a CBC investigation. But your stomach is bellowing, and you have caffeine withdrawal symptoms hours before you get to work. A bite of toast and a few sips of coffee won’t make a difference. It’s not so hasty. Your results could come back incorrect if you give in to desire. Fasting means you don’t consume or drink anything but water only for 8 to 12 hours earlier. If your appointment is at 8 a.m. and you’re told to fast for 8 hours, only water is enough after midnight. If it’s a 12-hour fast, keep away food and drink after 8 p.m. the night before. But they are not required in many other important checkups, like, for example, the STD Profile Checks.
It would be best to skip smoking, chewing gum (sugarless), and even a workout. These things can stimulate your digestion, and that can affect your results. Take your prescription medication unless your doctor tells you to avoid them. But get permission from your doctor before you take any pharmacy drugs.
What Tests Do I Fast for? Does the STD Check cover it?
CBC Kit Tests assist doctors in checking for specific health issues and investigating how well your body works. Doctors also utilize them to find out how well treatments are working. It is unnecessary to fast before every sampling, as in STD Checks. As STDs are generally unrelated to the digestive system, their selection does not need a fasting approach. However, your doctor will let you know if it is necessary.
The following exams require fasting:
- Fasting blood glucose calculates the amount of glucose (sugar) in your blood to check for diabetes or prediabetes.
General fasting time: No less than 8 hours
The Lipid Profile checks the level of cholesterol and other blood fats, for example, triglycerides. High levels place you at risk for advancing heart disease or stroke. Not all situations need fasting. You may not require it if you’re younger than 25. You may need only a partial Lipid panel or if your doctor is searching for a “non-fasting” result. Get help from your doctor if you need to fast before your test. Iron Exams are used to observe if iron levels in your system are extremely low or extremely high. They require almost 8 hours of fasting.
General fasting time: 9-12 hours
- The basic CBC Lab Kit is frequently part of a day-to-day physical. It studies your blood sugar, electrolyte and fluid balance, and kidney function. The complete blood count checks aspects of your liver function, too.
General fasting time: 10-12 hours
- The vitamin B12 test, for example, calculates how much of the vitamin is in your blood. It can assist in analyzing a particular type of anaemia and other issues. Some medications can intermingle with this test. Let your doctor be aware of all the drugs you consume during the performance of the CBC Checkup.
- Gamma-glutamyl transferase (GGT) displays the level of the GGT enzyme in your system. A high reading may indicate liver disease, bile duct issues, or alcohol abuse.
- Your doctor may ask you to fast for not less than 8 hours prior. You may also need to avoid alcohol and some prescription drugs the day before a sampling since they can influence GGT levels. Have a word with your doctor before consuming any prescribed medicines.
Why Do I have to fast in CBC Kit?
Nutrients in food and drink get into your arteries and can change things calculated by the tests, deviating your results.
For example, if you have food or drink before a fasting blood glucose exam, your blood sugar may be higher than if you hadn’t had anything. When you’re fasting, doctors get a reference line result so tests can be contrasted to provide a true picture of your sugar levels in supplementary hours. These things are not required in an STD exam.
What if I Slip Up? When can I eat or drink Again after a CBC Exam?
If you blunder and consume or drink anything apart from water, let the person taking your blood for CBC Home Kit; your doctor will want to know so they can explain your results better. They may ask you to plan a second appointment for the finest results.
The moment the healthcare worker takes your blood, your fast is over.
Tips for fasting safely for CBC Blood Testing
- It is important to remain hydrated. Having plenty of water can assist you to stay hydrated. Water does not influence the outcome and is the only consumable thing during fasting.
- Knowing the number of hours to fast for a complete blood count is important. You can find the latest time to consume or drink before the checkup. For instance, if it requires 8 hours of fasting and the appointment is by 8 a.m., you should not have anything after midnight.
- Your doctor requires being aware of all the medications you are taking so that they can suggest those that can alter the blood exam result. Get an appointment today with your doctor to see which drugs should be kept away before your blood investigation.
Optimizing Results: Avoid These Factors, Including Food and Drinks
The following should also be restricted, like food and drinks.
- Workout and other strenuous activities – Exercise enhances metabolic reactions in the body. A rise in metabolic activity can speed up digestion and assimilation of nutrients. This can influence the result.
- Coffee – Avoid coffee during fasting periods since it can speed up digestion
- Chewing Gum–Chewing gums accelerate digestion. Most chewing gums comprise sugar. This can change the level of blood sugar.
- Alcohol – alcohol can affect the correctness of a blood test. It influences the level of sugar and fat in the blood.
Health issues can arise from inaccurate results and further analysis of those results when the results from the Lab have problems. If you want to complete a blood check in London, the details above will help you to get it done effectively. If you eat or drink during your fasting period, you should contact your doctor to reschedule the appointment for your blood screening. Alcohol can also affect the results of STD investigations. Moreover, many STDs can even get worse with the excessive use of alcohol.