8 year old male with signs and symptoms of chest infection/ Pneumonia1. Normal FBC, UEC and CRP
Positive cold agglutinins
2. In context of patients presentation, this is likely to indicate a Mycoplasma Pneumonia
Other DDx: Lymphoproliferative disorders, haemolytic disease
3. Bedside: UA – haematuria, signs of heamolysis
Lab:
Haemolytic screen – LDH (elevated in this patient – 612), haptoglobin, Coombs test, cryoglobulins
Blood Cultures
Mycoplasma IgM and IgG
Blood Cultures
4.
| Age | Pathogen | Treatment |
| Neonate | Grp B strep, E Coli, Listeria (rare)
Atypicals – Chlamydia, Ureaplasma |
Admission, +/- macrolides |
| 1-3 months | Viral
Rarely: Grp B Strep, S.Pnm, S aureus S. Pyogenes, H Influenza Atypicals – Chlamydia, Ureaplasma |
Admission, +/- macrolides |
| <5 | S Pneumonia
Other: S Pyogenes, S aureus, H Influenza Moraxella Catarrhalis Atypicals – Mycoplasma, Chlamydia |
Antibiotics, +/- admission |
| >5 | Atypicals more likely, same as <5 | As above |