Table 1.

Quality assurance measures.

Quality control activity	Frequency	Responsible personnel	Documentation	Follow-up actions
Daily internal quality control	Daily	Medical Laboratory Scientists	QC logbook entries	Immediate corrective action for out-of-range results
External quality assessment	Quarterly	Laboratory Manager	EQA report submission	Review of results, Implementation of corrective measures
Equipment maintenance checks	Monthly	Biomedical Engineers	Equipment maintenance logs	Scheduled maintenance, Calibration checks