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Adult Medical Emergency Handbook - Scottish Intensive Care Society

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Diagnosis<br />

Symptoms<br />

• Specific: dyspnoea, chest pain (peripheral/pleuritic or dull central),<br />

cough, sputum (often absent early), wheeze.<br />

• General: malaise, fever, rigors, myalgia.<br />

Signs<br />

• Tachypnoea<br />

• Tachycardia<br />

• Focal signs: dullness, crackles, bronchial breathing, pleural rub.<br />

• Cough<br />

• Sputum (mucopurulent, rusty or bloodstained).<br />

• Cyanosis<br />

LIKELY UNDERLYING CAUSES<br />

Type Organism Approx. % cases<br />

Typical Streptococcus pneumoniae 31<br />

Haemophilus influenzae 7<br />

Influenza virus 7<br />

Staphylococcus aureus 2<br />

Gram negative eg Klebsiella 2<br />

Atypical Mycoplasma pneumonia 10<br />

Chlamydia psittica 4<br />

Legionella pneumophilia 2<br />

No organism found<br />

(most probably pneumococcal) 35<br />

Travel history and animal contact may point to less common<br />

pathogens: seek advice from Respiratory/ID/Microbiology.<br />

ASSESSMENT OF SEVERITY: CURB 65<br />

Prognostic indicators (on admission) of high mortality:<br />

C - new onset confusion.<br />

U - Urea over 7 mmol/l.<br />

R - Respiratory rate 30/minute or above.<br />

B - BP systolic

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