健檢前，藥該怎麼吃？ How Should You Take Your Medication Before a Health Check-up?
一篇搞懂所有注意事項 A Guide to All the Precautions
健康檢查前的準備，核心目標有兩個：第一是「安全」，第二是「準確」。貿然停用慢性病藥可能很危險，但繼續吃又怕干擾檢驗結果。怎麼辦才好？ The core objectives for preparing for a health check-up are twofold: first, “safety,” and second, “accuracy.” Abruptly stopping chronic disease medication can be dangerous, but continuing it might interfere with test results. So, what should you do?
這份指南將為你解惑，但請記住，黃金準則永遠是：「有任何疑問，先問你的主治醫師！」本指引不能取代個人化的醫療建議。 This guide will clear up your doubts, but remember, the golden rule is always: “If you have any questions, ask your attending physician first!” This guide cannot replace personalized medical advice.
第一章：慢性病的藥，該停？還是該繼續吃？ Chapter 1: Chronic Disease Medications: Should You Stop or Continue Taking Them?
對於需要空腹的抽血檢查，一般指引是禁食8小時，但大多數慢性病藥物是可以配一小口白開水服用的。 For blood tests that require fasting, the general guideline is to fast for 8 hours, but most chronic disease medications can be taken with a small sip of plain water.
心血管藥物：請照常服用 Cardiovascular Medications: Please Take as Usual
- 降血壓藥：請在檢查當天早上照常服用。突然停藥可能導致血壓反彈，非常危險。而且，健檢的目的之一就是要評估你的藥物控制效果好不好。 Antihypertensive drugs: Please take them as usual on the morning of the check-up. Suddenly stopping them can cause a rebound in blood pressure, which is very dangerous. Moreover, one of the purposes of the health check is to evaluate how well your medication is controlling your condition.
- 降血脂藥 (Statin類)：請繼續按時服用。這樣測出來的血脂數值，才能準確反映藥物的治療成效。 Lipid-lowering drugs (Statins): Please continue to take them on schedule. This ensures that the measured lipid levels accurately reflect the effectiveness of the medication.
糖尿病藥物：務必暫停！ Diabetes Medications: Be Sure to Pause!
健康檢查當天「早上」的口服降血糖藥或胰島素，千萬不要使用！ Do NOT take your oral hypoglycemic drugs or insulin on the “morning” of the health check-up!
因為你已經禁食了，如果再用藥，血糖會降得太低，可能引發頭暈、冒冷汗、甚至昏迷的「低血糖」危險。請務必把藥帶來健檢中心，等抽完血後立刻服用（或注射），然後再去用餐。 Because you are already fasting, taking the medication could cause your blood sugar to drop too low, potentially leading to the danger of “hypoglycemia,” such as dizziness, cold sweats, or even fainting. Please be sure to bring your medication to the check-up center, take it (or inject it) immediately after your blood is drawn, and then have your meal.
抗凝血藥 (薄血藥)：做腸胃鏡前請注意 Anticoagulants (Blood Thinners): Pay Attention Before a Gastroscopy/Colonoscopy
如果你只是做一般抽血，通常不需停藥。但如果你要做胃鏡或大腸鏡，且有可能需要切片或切除息肉，就必須提前停藥以防大出血。請務必與你的原處方醫師討論停藥的風險與確切天數！ If you are only having a routine blood test, you usually do not need to stop your medication. However, if you are undergoing a gastroscopy or colonoscopy where a biopsy or polyp removal might be necessary, you must stop the medication in advance to prevent severe bleeding. Be sure to discuss the risks and the exact number of days to stop with your prescribing physician!
| 藥物 (常見商品名) Medication (Common Brand Names) | 內視鏡檢查前建議停藥天數 Recommended Stop Duration Before Endoscopy |
|---|---|
| Aspirin (Bokey, Tapal)Aspirin (Bokey, Tapal) | 7 天7 days |
| Clopidogrel (Plavix)Clopidogrel (Plavix) | 5 天5 days |
| Warfarin (Coumadin)Warfarin (Coumadin) | 3 天3 days |
| Apixaban (Eliquis), Dabigatran (Pradaxa), Rivaroxaban (Xarelto) 等新型抗凝血劑Newer Anticoagulants like Apixaban (Eliquis), Dabigatran (Pradaxa), Rivaroxaban (Xarelto) | 2 天2 days |
第二章：維他命、保健食品也會影響檢查結果？ Chapter 2: Can Vitamins and Health Supplements Also Affect Test Results?
是的！這些看似無害的補充品，也可能讓你的檢查報告失準。 Yes! These seemingly harmless supplements can also lead to inaccurate test reports.
- 維他命C：高劑量的維他命C會干擾尿液試紙的化學反應，導致尿糖、尿潛血等項目出現「偽陰性」，可能會錯失早期發現問題的機會。建議檢查前24-48小時暫停。 Vitamin C: High doses of Vitamin C can interfere with the chemical reactions on urine test strips, causing “false negatives” for items like urine sugar and occult blood, potentially missing early detection of problems. It is recommended to stop taking it 24-48 hours before the test.
- 鐵劑：會讓糞便潛血檢查出現「偽陽性」，造成不必要的恐慌。建議採集糞便檢體前3天暫停。 Iron Supplements: These can cause a “false positive” on a fecal occult blood test, leading to unnecessary alarm. It is recommended to stop taking them 3 days before collecting the stool sample.
- 「活血」功效的保健食品：如魚油、銀杏、紅麴、人參等，會增加內視鏡檢查的出血風險。建議檢查前至少停用一週。 Supplements with “Blood-thinning” Effects: Such as fish oil, ginkgo, red yeast rice, and ginseng, can increase the risk of bleeding during an endoscopy. It is recommended to stop taking them for at least one week before the procedure.
第三章：做腸胃鏡、打顯影劑的特別準備 Chapter 3: Special Preparations for Gastroscopy/Colonoscopy and Contrast Agent Injections
內視鏡檢查 (胃鏡、大腸鏡) Endoscopy (Gastroscopy, Colonoscopy)
除了上述的抗凝血藥停藥規則，成功的腸胃鏡檢查關鍵在於「徹底的清腸」。 In addition to the anticoagulant rules mentioned above, the key to a successful GI endoscopy is a “thorough bowel cleansing.”
- 低渣飲食：檢查前2-3天開始吃「低渣飲食」（如白飯、稀飯、白吐司、過濾的肉湯），避免吃任何蔬菜、水果、全穀類。 Low-Residue Diet: Start a “low-residue diet” 2-3 days before the exam (e.g., white rice, congee, white toast, strained broth), and avoid all vegetables, fruits, and whole grains.
- 服用瀉藥：務必按照指示，喝完所有的清腸藥劑和建議水量。成功的標準是最後解出清澈、無糞渣的淡黃色水便。 Take Laxatives: Be sure to follow the instructions to drink all the bowel prep solution and the recommended amount of water. A successful prep is indicated by final bowel movements that are clear, yellowish liquid without any solid stool.
打顯影劑的檢查 (如電腦斷層 CT) Contrast-Enhanced Exams (e.g., CT Scan)
如果你有在服用糖尿病藥物Metformin (例如：庫魯化)，請務必主動告知放射科醫師。因為顯影劑有極低機率會暫時影響腎功能，若Metformin排不出去，可能引發罕見但致命的「乳酸性酸中毒」。醫師會根據你最新的腎功能數據，決定你是否需要暫停用藥。 If you are taking the diabetes medication Metformin (e.g., Glucophage), you must inform the radiologist. This is because the contrast agent has a very low risk of temporarily affecting kidney function. If Metformin cannot be cleared from the body, it may cause a rare but fatal condition called “lactic acidosis.” The doctor will decide if you need to pause your medication based on your latest kidney function results.
第四章：怕打針、會暈針怎麼辦？ Chapter 4: What to Do If You’re Afraid of Needles or Prone to Fainting?
「暈針」是一種常見的神經反射，不是膽小或身體虛弱。你可以用幾個小撇步來預防： Vasovagal syncope, or fainting from needles, is a common nerve reflex, not a sign of being timid or weak. You can use a few tricks to prevent it:
- 多喝水：檢查前一天和當天早上喝足夠的水，避免身體脫水。 Drink Plenty of Water: Stay well-hydrated the day before and the morning of the test to avoid dehydration.
- 坦白跟護理師說：主動告知你有暈針史，他們會讓你躺著抽血，這是最有效的預防姿勢。 Be Honest with the Nurse: Inform them that you have a history of fainting. They will have you lie down for the blood draw, which is the most effective preventive posture.
- 分散注意力：抽血時聽音樂、跟人聊天，轉移注意力。 Distract Yourself: Listen to music or chat with someone during the blood draw to divert your attention.
- 學會「肌肉緊張法」：感覺到頭暈前兆時，立刻繃緊雙臂、雙腿和軀幹的肌肉約10-15秒，然後放鬆。重複幾次可以快速升高血壓，防止昏厥。 Learn the “Applied Tension Technique”: At the first sign of dizziness, immediately tense the muscles in your arms, legs, and torso for about 10-15 seconds, then relax. Repeating this a few times can quickly raise your blood pressure and prevent fainting.
第五章：總結：你的健檢前準備清單 Chapter 5: Conclusion: Your Pre-Check-up Checklist
為了確保你的健康檢查安全又準確，請在出發前，用這份清單做最後的確認： To ensure your health check-up is both safe and accurate, use this checklist for a final review before you leave:
- [ ] 我已經和我的醫師確認過，哪些藥該吃、哪些藥該停了。 [ ] I have confirmed with my doctor which medications to take and which to stop.
- [ ] 我清楚知道所有需停用藥物的「開始停藥日」和「恢復用藥」的時間點。 [ ] I am clear on the “stop date” and “resume date” for all medications that need to be paused.
- [ ] 如果要做腸胃鏡，我已經確認過抗凝血藥和「活血」保健食品的停用日期。 [ ] If I am having a GI endoscopy, I have confirmed the stop dates for anticoagulants and “blood-thinning” supplements.
- [ ] 如果有在吃Metformin且要打顯影劑，我已經告知醫師了。 [ ] If I am taking Metformin and will receive a contrast agent, I have informed the doctor.
- [ ] 我清楚本次檢查的禁食、禁水規定。 [ ] I understand the fasting and water intake rules for this check-up.
- [ ] 如果我會怕打針，我已經想好應對策略了。 [ ] If I am afraid of needles, I have a coping strategy ready.
做好萬全準備，與醫療團隊充分溝通，你就能成為自身健康旅程中，一位更積極、更知情的參與者。 By being well-prepared and communicating fully with your medical team, you can become a more active and informed participant in your own health journey.
