Health checks on the mountain

Regular observation is how a small problem gets caught while it is still small. On a well-run climb somebody checks in with you twice a day, asks the same questions, writes the answers down, and looks at how they change.

This page explains what is being measured and what it means, because a climber who understands the readings can take part in the decision rather than simply being measured.

What is typically assessed

The questions

Most operators use a standardised set of symptom questions, scored, covering:

• Headache — and whether painkillers touch it
• Nausea or loss of appetite
• Fatigue or weakness beyond what the day explains
• Dizziness or light-headedness
• Sleep quality

Scored consistently across days, these produce a trend. A rising score over two days matters far more than a single bad evening.

Pulse rate

Resting heart rate rises at altitude, which is normal. What a guide watches for is a rate that keeps climbing rather than settling as you adapt.

Blood oxygen saturation

Measured with a fingertip pulse oximeter. This is the number climbers fixate on, and it is the one most often misunderstood.

How a guide actually decides

No competent guide makes a decision on one number. They are combining:

• The symptom score, and its direction over the last two days
• Pulse and saturation trends
• How you look — coordination, speech, colour, whether you are eating
• What altitude you are at and what tomorrow demands
• How long it would take to get you down from here

A climber with a poor reading who is eating, talking normally and walking steadily is in a very different position from one with the same reading who has stopped eating and is unsteady.

Why honesty matters more than anything measured

The most dangerous thing a climber does on Kilimanjaro is underreport symptoms to avoid seeming weak or to avoid being turned around.

Guides know this happens and watch for it, but they cannot see a headache. Telling somebody you have a headache on day four does not end your climb — it usually results in more water, a slower pace, and a closer eye. Hiding it until day six removes every option except descent.

What to ask about

• How often are checks done?
• Is a recognised symptom-scoring system used?
• Are results written down and kept, so trends are visible?
• Is a pulse oximeter carried, and is it checked against a known reading?
• Who reviews the results, and what triggers a decision?

How we monitor you

Daily health monitoring by the mountain guide is part of every itinerary we sell, and our guides are instructed to read it the right way round:

• Daily guide-led health checks, including symptom discussion
• Pulse oximetry, used as supporting information rather than as the decision
• Assessment of your overall clinical presentation — how you are walking, eating, speaking and sleeping
• A pre-climb briefing and equipment check before you start

The wording in our own itinerary documents is worth quoting because it is the part that matters: any descent or turnaround decision made for safety takes precedence over summit objectives. A number on an oximeter never overrides how a climber actually looks.