Peak expiratory flow (PEF)
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Latest reading
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Personal best
PEF
Surgery date
SILSI
% of personal best
PEF history
Each reading shows how far it is below your personal best, colored by zone: 0–20% 21–40% 41–50% 51–60% 61%+
🌬️No readings yet — log your first PEF reading above.
—%
Latest reading
—%
Lowest recorded
SpO₂ %
Below 92%
Surgery date
SILSI
Readings below 92% are flagged for your awareness only — this isn't a diagnosis. If a reading concerns you, especially with worsening breathlessness, contact your care team or seek urgent care.
History
🩸No readings yet — log your first SpO₂ reading above.
About these scales
History
📝No symptom logs yet.
🏥No surgeries logged yet.
Photograph paperwork, screenshot an email, or upload a PDF — discharge summaries, prescriptions, referral letters, correspondence with your care team.
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