Medical disclaimer

1. General information only

All content on this website, including articles, tables, glossary entries and resource lists, is provided for general informational and educational purposes. It describes what public health bodies and research say about common topics. It is not written for any individual's circumstances.

In practice, this means the articles describe patterns at the level of groups of people: what national health bodies, professional societies and published research say is typical, common or worth discussing. A reading range, a sleep guideline or a list of warning signs describes a population, and your own situation may differ for reasons that a general article cannot see, such as your age, family history, medicines, other conditions or the way a test was carried out. For example, an article may explain what a fasting blood glucose range is used for, but it cannot tell any one reader whether a particular result needs attention.

The publication is written by editors and contributors based in Jakarta, and articles are reviewed by qualified professionals before they are published, as described in our editorial policy. Review makes it more likely that a statement is accurate, but it does not turn an article into personal advice. The site is intended for adults and is written for a general audience in Indonesia; it is not designed for people in other countries, whose guidelines, medicines and services may differ.

The site is hosted by Amazon Web Services in its Asia Pacific (Jakarta) region. The hosting provider supplies computing infrastructure only. It has no role in writing, reviewing or approving any health information shown here.

2. Not medical advice

Nothing on the Site is medical advice, diagnosis or treatment, and reading it does not create a doctor-patient relationship. Zandrel does not examine, assess or treat anyone. Reference values and symptom lists are provided so that you can understand terminology and prepare questions; they are not a way to diagnose yourself or others.

Several situations come up often enough to be described here:

1. Reference values. Laboratory ranges differ between laboratories, methods and age groups. A range quoted in an article is an example drawn from a named public source. Your laboratory report shows the range that applies to your sample, and your doctor interprets the result in context.
2. Symptom lists. A list of symptoms is intended to help you describe what you notice and decide when to seek care. Having one item on a list does not mean you have a condition, and having none of them does not mean you are free of one. Many symptoms have several possible causes, most of them common and manageable.
3. Messages to the editors. If you write to us describing symptoms or asking whether a result is normal, we cannot give a personal answer, because we do not examine anyone and have no access to your records. We will reply with general information, suggest you speak to your doctor, and point you to emergency services if what you describe sounds urgent.
4. Tools and tables. Any table or checklist on the site is a summary for learning and conversation. It does not calculate risk and should not be used to decide whether you need treatment.
5. Other people. If you read an article on behalf of a relative or friend, the same limits apply. Encourage them to speak to a licensed professional rather than relying on the page.

3. Speak to a professional

Always seek the advice of a qualified doctor or other licensed health professional about a medical condition, symptoms, medicines or any change to your diet, exercise or sleep routine. This is especially important if you:

• have an existing condition such as diabetes, heart disease, kidney disease or high blood pressure;
• take prescription medicines or supplements;
• have new, severe or worsening symptoms;
• are about to begin a new exercise programme after a long period of inactivity.

Never disregard professional advice or delay seeking it because of something you read here.

In Indonesia, a first visit is often to a general practitioner (dokter umum) at a community health centre (puskesmas), a clinic or a hospital outpatient department. Depending on the concern, the doctor may refer you to a specialist, for example in internal medicine (penyakit dalam), cardiology, urology or psychiatry, or to a clinical psychologist for counselling. If you are a member of the national health insurance scheme, referral steps and which facility you register with can affect what is covered, so it is worth checking with BPJS Kesehatan before an appointment. Online consultation services are available, and if you use one, check that the doctor is registered and that the platform is licensed by the Ministry of Health.

A few habits make appointments more useful. Write down what you have noticed and since when. List every medicine, vitamin or traditional herbal product (jamu) you take, with doses, because some combinations affect test results or other medicines. Bring earlier test results if you have them, and prepare two or three questions. Do not stop or change a prescribed medicine on your own because of an article, even if the article discusses lifestyle factors related to your condition; ask the prescriber first.

4. Accuracy and currency

Our articles are reviewed by qualified professionals and revisited at least once a year, and the dates are shown on each article. Even so, medical knowledge changes, and we cannot guarantee that a page is complete, current or free of error at the time you read it. If you notice a mistake, please tell us.

Each article shows the date it was first published and the date it was last reviewed. Where national guidance changes, for example when a ministry or professional society revises a recommendation, we aim to review the affected articles within 60 days. A page may therefore be slightly behind the newest guidance for a short period, and the date shown tells you how current it is intended to be. When we correct a factual error, we change the text, update the review date and, for significant corrections, add a short note at the top of the article saying what changed.

Sources are named in the text or in the reading list, and we give preference to national and international public health bodies and peer-reviewed publications. Where evidence is limited or experts disagree, the article says so instead of presenting one view as settled. Differences between countries are also common: a screening age or a target value used elsewhere may not match the guidance used by Indonesian authorities, and an article will say which it describes.

5. Products, services and third parties

Zandrel does not sell, promote or endorse any health product, supplement, clinic or practitioner. If an article mentions a category of product or treatment, it does so to describe what evidence exists. Links to external sites are provided for convenience; we are not responsible for their content.

Zandrel has no commercial relationship with any manufacturer, clinic, laboratory, insurer or practitioner mentioned in its pages, and no one pays for a mention. When an article discusses a category such as vitamin or mineral products, herbal preparations or a type of medical test, it explains what is known about the category in general terms and where evidence is limited. It does not suggest that any product or service will produce a particular result, and no article should be read as a recommendation to buy or take anything. See the advertising disclosure for how the publication is funded and how links are chosen.

6. Local context

Descriptions of health services, insurance and regulation refer to Indonesia and may change. Check current arrangements with your health facility, BPJS Kesehatan or the relevant authority.

The numbers in the box at the top of this page are for Indonesia. The number 119 is used for emergency medical help, and 112 is the national general emergency number that can be called from a mobile phone. If you are outside Indonesia, use the local emergency number instead. Emergency departments (IGD) of hospitals are open at all hours, and a person who needs urgent care should not be turned away while payment or insurance is arranged.

Health services, fees, insurance rules and regulations vary by province and change over time. An article that describes a service, such as a check-up package offered through a community health centre or a rule about referrals, reflects the situation on the date shown on the page. Confirm current details with the facility or the authority before you travel or make plans based on them.

7. Responsibility

You are responsible for decisions you make about your health. To the extent permitted by law, Zandrel Editorial and its contributors accept no liability for loss or harm resulting from use of, or reliance on, information on this website. See also the terms of use.

This does not limit anything that cannot be limited by law, and it does not reduce your rights under Indonesian consumer protection or health legislation where those apply. It means that you remain the person who decides, with your own professional advisers, what is right for you. If you feel unwell, are worried, or are unsure whether something is serious, contact a health professional; it is always reasonable to ask. If you are in distress or have thoughts of harming yourself, contact the nearest hospital or a licensed mental health professional, or ask someone you trust to stay with you while you do so.

8. Related pages

You may also wish to read our editorial policy, which explains how information is reviewed, and the reading list of official health sources.

The glossary explains common terms in plain language, the FAQ answers questions about how the publication works, and the preventive check-ups page explains how to prepare for a routine appointment. Questions about this disclaimer can be sent to [email protected], to Zandrel Editorial, Jalan Bunga Raya No. 25, Kebayoran Baru, Jakarta Selatan, DKI Jakarta 12160, Indonesia, or by telephone on +62 813 6745 2918, Monday to Friday. We reply within five working days. This disclaimer is reviewed at least once a year, and the next review is due by October 2027.