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Table 1 Positivity rates of MTB in different types of samples (n = 766)

From: PCR could be a method of choice for identification of both pulmonary and extra-pulmonary tuberculosis

Sr. No.

Type of Sample

Total Samples Received

Found Positive

Percentage

1

Serum

41

2

4.8%

2

Blood

88

32

36.3%

3

Urine

225

105

46.6%

4

CSF

76

32

42.1%

5

Ascitic Fluid

133

90

67.6%

6

Pleural Fluid

98

51

52%

7

Pericardial Fluid

10

3

30%

8

Pus

44

17

38.6%

9

Bone Marrow

5

3

60%

10

Sputum

36

14

38.8%

11

BAL

10

7

70%

12

Total

766

356

46.4%

  1. MTB: Mycobacterium tuberculosis; CSF: cerebro spinal fluid; BAL: bronchoalveolar lavage;