Travel Health Glossary — Nepal Trek & Clinic Terms
From "Lake Louise score" to "GOP" — every term doctors, guides, and insurers use in Nepal, defined in one line. Bookmark it; you'll need it.
Terms Grouped by Category
Altitude illness: AMS, HAPE, HACE, Lake Louise Score, Acclimatization, Ataxia, SpO2
Medications: Diamox (acetazolamide), ORS, PEP, RIG
Insurance/admin: GOP, ICD-10, TIMS/trekking permits
Infections: Giardia — the specific GI parasite trekkers get
How to Use This Glossary
Bookmark it for reference during planning and on the trail. When your guide says "Lake Louise score of 4" or your insurer asks for "the GOP," this is the translation. When the clinic report lists ICD-10 codes, this is the decoder. The terms are grouped by how you will actually encounter them — as symptoms, as paperwork, or as the thing you need to ask for.
Common Questions
How to Use This Reference
The glossary exists because travel medicine uses terms that are not everyday vocabulary — AMS, HAPE, SpO2, ORS, prophylaxis. The terms are defined in plain language so the guide that uses them is readable. When you encounter an unfamiliar term in a guide or a consultation, this is the translation.
The Terms That Matter Most
Start with the terms that appear in emergency guidance: AMS (acute mountain sickness), HACE (high altitude cerebral edema — the dangerous progression), HAPE (high altitude pulmonary edema — the lung emergency), SpO2 (blood oxygen percentage), and descent (the treatment that matters). These are the vocabulary of altitude illness; knowing them helps the symptoms make sense.
The Altitude Terms
AMS (acute mountain sickness), HACE (high altitude cerebral edema), HAPE (high altitude pulmonary edema), acclimatization, ascent rate, rest day, climb-high-sleep-low, pulse oximetry — the vocabulary that altitude medicine uses. Understanding these terms helps the trekker understand the guidance that protects them.
The Nepal Trekking Terms
Teahouse (the lodge), TIMS (trekking permit system), guide vs porter (the roles differ), dal bhat (the staple food), khumbu cough (the altitude cough), gamow bag (portable pressure chamber), acclimatization day — the terminology that Nepal trekking specifically uses. The informed trekker navigates the logistics with the vocabulary understood.
The Medical Terms
Medical abbreviations the traveler encounters: SpO2 (oxygen saturation), AMS (acute mountain sickness), HACE/HAPE (the severe altitude illnesses), DVT (deep vein thrombosis), IV (intravenous), CBC (complete blood count), ECG (electrocardiogram). The traveler who encounters these terms in the medical context understands what is being measured and why.
The Permit Terms
Nepal trekking permits: TIMS (Trekkers Information Management System — the trekking card), ACAP (Annapurna Conservation Area Permit), MCAP (Manaslu Conservation Area Permit), the restricted-area permits for the special zones, and the national park entry fees. The permit vocabulary that the trekking logistics require the trekker to understand.
The Permit Abbreviations
The trekking permit acronyms: TIMS (Trekkers Information Management System), ACAP (Annapurna Conservation Area Permit), MCAP (Manaslu Conservation Area Permit), the GCA (Gaurishankar Conservation Area), the RAP (Restricted Area Permit for the controlled zones). The permit vocabulary that the trekking logistics requires.
The Medical Abbreviations
Medical abbreviations encountered: SpO2 (oxygen saturation), AMS (acute mountain sickness), HAPE/HACE (the severe altitude illnesses), DVT (deep vein thrombosis), IV (intravenous), CBC (complete blood count), ECG (electrocardiogram). The vocabulary that the medical encounters produce.
Altitude Terms
AMS (acute mountain sickness), HAPE (high-altitude pulmonary edema), HACE (high-altitude cerebral edema), SpO2 (the oxygen saturation), acclimatization (the physiological adaptation), and the climb-high-sleep-low technique.
Travel Medicine Terms
DVT (deep vein thrombosis), ORS (oral rehydration solution), TB (tuberculosis), JE (Japanese encephalitis), and the prophylaxis (the preventive medication or the measure).
Clinical Terms
Clinical terms: the CBC (the complete blood count), the CRP (the inflammation marker), the CT (the imaging), the ECG (the heart tracing), and the INR (the blood clotting measure).
Travel Terms
Travel terms: the ORS (the oral rehydration), the PEP (the post-exposure prophylaxis), the DEET (the insect repellent), the TIMS (the trekker card), and the ACAP (the conservation area permit).
The Clinical Terms
Clinical glossary: the AMS (the acute mountain sickness), the HACE (the high-altitude cerebral edema), the HAPE (the high-altitude pulmonary edema), the Lake Louise score, and the pulse oximeter.
The Travel Terms
Travel glossary: the teahouse (the lodge that provides the accommodation + the food), the porter, the guide, the TIMS (the trekker card), and the ACAP (the conservation area).
The Clinical
Clinical terms — the AMS (the acute mountain sickness), the HACE (the cerebral), the HAPE (the pulmonary), the SpO2 (the oxygen saturation), the PFT (the pulmonary function).
The Travel
Travel terms — the TIMS (the trekker information), the ACAP (the Annapurna conservation), the IDP (the international driving), the ORS (the oral rehydration).
The Resource Value
Glossary — the free (the reference that is provided). For the terminology, the lookup that is accessible.
The Clarity Value
Terminology clarity — the free understanding (the informed decision that is enabled). For the medical discussion, the glossary that aids.
The Free Resource
Medical glossary — the free (the defined that is the reference). For the reader, the understood that is the value.
The Application
Glossary-to-consult — the ~$40 (the term-that-becomes the visit). For the diagnosed, the translated that is the continuity.
What is the difference between AMS, HAPE, and HACE?
AMS (acute mountain sickness) is the mildest — headache plus nausea/dizziness/fatigue at altitude, usually resolves with rest. HAPE (high-altitude pulmonary edema) is fluid in the lungs — breathless at rest, gurgling breathing, pink froth — life-threatening, needs immediate descent. HACE (high-altitude cerebral edema) is brain swelling — ataxia, confusion, irrational behavior — life-threatening, needs immediate descent.
What is a Lake Louise score?
The standardized AMS severity score (0-4) — headache + nausea + dizziness + fatigue + sleep quality each scored; total ≥3 with recent altitude gain means AMS. Guides and clinicians use it to decide whether symptoms warrant descent or watchful waiting.
What does GOP mean in a medical context?
Guarantee of Payment — written authorization from your insurer/assistance company to pay a clinic directly instead of you paying out-of-pocket and claiming reimbursement. It enables direct billing; the clinic treats, the insurer pays, you skip the reimbursement paperwork.
What is the difference between PEP for rabies and PEP for HIV?
Same acronym, different treatments. Rabies PEP = vaccine series ± immunoglobulin (RIG) around the wound, started after any mammal bite/scratch. HIV PEP = 28-day antiretroviral course started within 72 hours of exposure. Both are time-sensitive emergency treatments.
Why do doctors keep asking about SpO2 on treks?
SpO2 (blood oxygen saturation) is the objective measure of how your body is handling altitude — normal at Kathmandu (~1,400m) is 95-99%; below 90% at altitude is a warning sign. It is the vital sign that tracks acclimatization more honestly than symptoms do.
