Materials and Methods: Non-experimental correlational research design was carried out with 30 samples that met the inclusion criteria were selected using convenience sampling technique. Demographic variables were collected variables were collected by using multiple choice questionnaire followed by first day of laboratory values were taken from investigations report. The participants were followed for number of days in the intensive care unit. The data were tabulated and analyzed by descriptive and inferential statistics.

Results: The finding of the study reveals that all the first day of laboratory values of were not statistically significant correlate with length of stay in intensive care unit at the level of p <0.05 and almost majority 15(50%) were staying in the intensive care unit for 6-10 days.

Conclusion: Clinical laboratory services are most cost effective, least invasive source of the objective information used in clinical decision making. Clinical laboratory services have a direct impact on many aspects of patient care including length of stay, patient safety, resource utilization and patient satisfaction.