Table 2.
Measurement of quality indicators
| Indicator | Numerator | Denominator | Measurement |
|---|---|---|---|
| Lab personnel awareness ratea | Sum of all lab personnel score | Sum of all maximal score | Mean lab personnel score |
| Wrong identification | No. of patients incorrectly identified | No. of patients’ sample received | % Improperly identified |
| Incomplete formsb | No. of incomplete forms received | Total No. of forms received | % Incomplete forms |
| Sample rejection ratec | No. of specimens rejected | Total no. of specimens received in the lab. | % Specimens rejected |
| No. of accidents reportedd | No. of accidentsreported3 | – | Total no. of accidents occurred |
| Random errors | No. of random errors reported | Total no. of specimens received in the lab. | % Random errors occurred |
| Systemic errors | No. of systemic errors reported | Total no. of specimens received in the lab. | % Systemic errors occurred |
| Non-conformity with QC (%) | No. of outliers observed | – | Total no. of failures |
| Number of repeat testinge | No. of tests repeated | Total no. of tests performed | % Repeat tests |
| Urgent sample reportingf | No. of times report not informed to caregiver stat | Total no. of samples received | % Caregivers not reached |
| Critical value reportingg | No. of times caregivers not reached | Total no. of tests performed | % Caregivers not reached |
| Turnaround time (TATs) | No. of times test reported beyond TATs | – | Total no. of outliers |
aLab personnel awareness in all the phases of total testing process was assessed
bIncomplete forms included forms not signed, writing not clear & inappropriate form received in the lab
cHaemolysed/clotted samples, sample quantity not sufficient & samples received in inappropriate vial were rejected
dAccidents reported in the lab & included in the study were needle stick injury, gloves not worn during handling the samples, spillage of samples in working area & waste disposal in wrong bag
eAll the tests repeated to confirm the results were included in this indicator
fSamples marked by the clinician as urgent were included in this parameter
gTest results found critical for patient care as per the critical values defined by the lab