Showing up unprepared for a health checkup in China can give you numbers that look alarming but are meaningless — or send you home and back for a repeat visit. A few hours of planning keeps your results accurate and your morning calm.
Why preparation matters for your results
What you eat, drink, and do in the hours before your appointment directly changes the numbers on your report. A breakfast before a fasting glucose test can push you from “normal” into the pre-diabetic range on paper. Alcohol the night before can spike liver enzymes. Strenuous exercise the morning of can raise creatine kinase and distort kidney markers.
How fasting affects your bloodwork
Fasting glucose and lipid panels are the most common tests that require an empty stomach. Eating or drinking anything besides plain water will raise your triglycerides and glucose. Most private hospitals request 8–12 hours of fasting — the exact window depends on the panel your doctor ordered.
Hydration and ultrasound accuracy
For abdominal ultrasound, a full bladder gives the technician a clear window to the pancreas, gallbladder, and reproductive organs. Drinking 500–700 ml of plain water an hour before the scan and holding it is standard advice. Dehydration makes veins harder to find and can concentrate blood values artificially.
Preparation is one of the few parts of a checkup you fully control. If you want to understand how the cost of these tests varies across hospitals in China, read our China medical cost comparison.
What to bring to your checkup
The registration desk at a Chinese hospital will ask for identification before anything else. Bring your passport — it is the standard ID document for foreigners. Foreign-issued IDs are often not accepted at public hospitals.
Identification and registration
Your passport number goes into the hospital system and onto your invoice. If you have a Chinese name on file with your employer or residency permit, mention it — otherwise the English transliteration on your passport is what they use.
Prior reports and imaging
Bring previous blood reports, imaging discs, and doctor’s letters in any language. Chinese technicians can read DICOM images and lab values regardless of language. Comparing a prior CT or ultrasound to a new one is one of the most useful things a checkup does.
Your medication list
Write down every prescription, over-the-counter drug, and supplement you take, using generic names if possible. “Metformin 500 mg twice daily” is more useful to a nurse than a brand name they may not recognise. Keep the list on paper or in your phone.
Managing your medications on the day
The default rule is not “skip everything” — it is “take what your doctor told you to take and clarify everything else.” Stopping certain medications abruptly is more dangerous than a blood draw.
Blood pressure and heart medication
Most blood pressure medications are taken with a small sip of water on the morning of the checkup, exactly as prescribed. A sip of water does not break a fasting window. If you are unsure, call the hospital’s international department the day before.
Diabetes medication and insulin
This is where you must talk to the clinic before the day. If you are fasting for bloodwork, your diabetes medication or insulin dose may need to be held until after the draw. Do not make that decision on your own — ask the ordering physician or the hospital’s checkup coordinator.
Blood thinners and aspirin
Declare these at check-in regardless of whether you plan to stop them. The nurse needs to know because some panels (like coagulation tests) are affected, and because you may be offered blood draws from smaller veins to reduce bruising risk.
If you are comparing different checkup structures, our package vs itemised guide explains how to choose tests instead of buying a bundle you don’t need.
The night before and the morning of
Most preparation errors happen the evening before, not the morning. A heavy meal, a few beers, or a hard gym session can change more than a rushed breakfast.
What to skip for 8–12 hours
Skip all food, alcohol, chewing gum, and flavoured drinks. Black coffee without sugar or milk is usually acceptable for fasting, but plain water is safer. Avoid strenuous exercise for at least 24 hours — it can elevate muscle enzymes and cardiac markers for a day or two.
What not to skip
Do not skip regular medications unless your doctor or the clinic explicitly tells you to. Do not skip a full night’s sleep — sleep deprivation raises cortisol and can shift white blood cell counts. Do not skip bringing your passport.
What to tell the nurse at check-in
Tell the nurse about pregnancy or possibility of pregnancy, drug or food allergies, any fever or acute illness in the past two weeks, implants or pacemakers, and past reactions to contrast dye. These details change which tests are safe and which rooms you go to.
After the fasting draw
Once the fasting blood is taken, the pressure is off. Most hospitals have a canteen or provide a simple breakfast after the draw. Eat before you leave if you have been fasting — driving or commuting on an empty stomach after a blood draw is a common reason people feel faint in the lobby.
Eating and drinking after bloodwork
Eat something with protein and complex carbohydrates rather than a sugary pastry. Drink water steadily for the rest of the morning. If you were holding water for an ultrasound, you can empty your bladder after the scan.
How long the visit takes
A standard checkup with fasting bloodwork, abdominal ultrasound, chest X-ray, and ECG takes 2–3 hours at a private hospital. Add 30–60 minutes if you add colonoscopy, stress echo, or specialist consultations. Executive packages at top private hospitals can run a full morning.
HealthBridge plans health checkups for foreigners in China. Tell us your age, medical history, which city you are in, and what you want tested — we build the panel and match you to a hospital with English-speaking staff. Contact us for a checkup plan.