6. A patient with low grade fever, cough and weight loss.
Case history– A 28 year’s old male presents with low grade irregular fever, cough and significant weight loss for 2 months.
What is the diagnosis striking in your mind?
Pulmonary tuberculosis
What key questions would you ask?
- Pattern of fever- low grade irregular fever, evening rise of temperature with profuse night sweating.
- Cough- may be dry or productive with scanty sputum. Coughing up blood is a common problem.
- Weight loss- 10 % weight loss or more than 3 kg loss in 6 months or 0.5kg per month.
- Associated symptoms- chest pain, haemoptysis (coughing up blood) and anorexia.
What will you examine?
General examination- Patient is ill looking, emaciated. Temperature may be raised.
Chest examination- may be normal, crepitations which disappears/alters after coughing, even may appear after coughing (post-tussive crepitation).
Features of cavitation/fibrosis * may be present.
Features of pleural effusion** may be present.
Investigations-
CBC with ESR- ESR is expected to be high
X-ray chest PA view- patchy opacities (typical), may be cavitation, consolidation and pleural effusion
Sputum for AFB
MT
Pleural fluid study.
Treatment-
Treatment Phase:
- Initial or Intensive Phase- 2 months
- Continuation Phase- 4 months
Composition of FDC Tablets:
- 4FDC : Isoniazid 75 mg + Rifampicin 150 mg + Pyrazinamide 400 mg + Ethambutol 275 mg
- 2FDC : Isoniazid 75 mg + Rifampicin 150 mg
Dosages of FDC Tablets:
Category I:
Pre-treatment weight
(Kg) |
Intensive Phase | Continuation Phase |
Daily (First 2 months) | Daily (Next 4 Month) | |
Number of 4FDC tablets | Number of 2FDC tablets | |
30-37 | 2 | 2 |
38-54 | 3 | 3 |
55-70 | 4 | 4 |
>70 | 5 | 5 |
- If smear positive tuberculosis, add levofloxacin 500 mg daily for 6 months if weight <50 kg and 750 mg daily if weight >50 kg.
*Features of fibrosis- flattened chest, diminished movement, trachea and apex shifted to same side, percussion note impaired, low-pitched bronchial breath sound and crepitation.
**Features of pleural effusion- diminished movement, trachea and apex shifted to opposite side, percussion note stony dull, and breath sound diminished or absent.