Self-Report Questionnaire for diagnosis of Acute Mountain Sickness (AMS)
Acute Mountain Sickness (AMS)
Self-Report Questionnaire for diagnosis of Acute Mountain Sickness (AMS)
Lake Louise Score (LLS)
For the diagnosis of Acute Mountain Sickness (AMS)
A diagnosis of AMS is based on:
- A rise in altitude within the last 4 days
- Presence of a headache
Plus
- Presence of at least one other symptom\
- A total score of 3 or more from the questions below
SELF-REPORT QUESTIONNAIRE
Add together the individual scores for each symptom to get the total score.
|
Headache |
No headache |
0 |
|
|
Mild headache |
1 |
|
|
|
Moderate headache |
2 |
|
|
|
Severe headache |
3 |
|
|
|
|
|
||
|
Gastrointestinal Symptoms |
None |
0 |
|
|
Poor appetite or nausea |
1 |
|
|
|
Moderate nausea &/or vomiting |
2 |
|
|
|
Severe nausea &/or vomiting |
3 |
|
|
|
|
|
||
|
Fatigue &/or weakness |
Not tired weak |
0 |
|
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Mild fatigue/weakness |
1 |
|
|
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Moderate fatigue/weakness |
2 |
|
|
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Severe fatigue/weakness |
3 |
|
|
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|
||
|
Difficulty sleeping |
Slept as well as usual |
0 |
|
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Did not sleep as well as usual |
1 |
|
|
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Woke many times, poor sleep |
2 |
|
|
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could not sleep at all |
3 |
|
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|
Total Score |
|
|
Total score of:
- 3 to 5 = Mild AMS
- 6 or more = severe AMS
Note:
- Do not ascend with symptoms of AMS
- Descend if symptoms are not improving or getting worse
- Descend if symptoms of HACE or HAPE develop
- HACE refers 'High Altitude Cerebral Edema'
- HAPE refers 'High Altitude Pulmonary Edema'
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