Skip to main content

Table 1 Evaluation system for AFB microscopy errors

From: The role of AFB microscopy training in improving the performance of laboratory professionals: analysis of pre and post training evaluation scores

Result of trainees

True results of standard slides

Negative

1-9 AFB/100 field

1+

2+

3+

Negative

Correct

LFN

HFN

HFN

HFN

1–9 AFB/100 field

LFP

Correct

Correct

QE

QE

1+

HFP

Correct

Correct

Correct

QE

2+

HFP

QE

Correct

Correct

Correct

3+

HFP

QE

QE

Correct

Correct

  1. LFP- low false positive, HFP- high false positive, LFN- low false negative, HFN- high false negative, QE- quantification error.