We are pleased to welcome Dr Tze Ping Loh, Senior Consultant and Research Director at Singapore’s National University Hospital, to Labquality Days 2026.
A first-time guest at the congress, Dr Loh brings deep expertise in chemical pathology, biomarker discovery, and laboratory management. This year, he will be contributing to the scientific programme with a thought-provoking lecture and hosting a hands-on satellite workshop you won’t want to miss.
What can we expect from his lecture and the workshop? Read on to find out!
“Quantitative laboratory measurements are produced by statistically relating the analytical signal and measurand concentration through a calibration curve,” Dr Loh explains. “This relationship can drift or shift (‘bias’) over time due to changes in the measurement system.”
He notes that common causes of calibration bias include:
In addition, Internal Quality Control and External Quality Assessment play a crucial role:
“IQC and EQA can serve as external checks on the calibrator/calibration performance – providing they are independent and ideally matrix-matched.”
Dr Loh also points to newer concepts in error detection:
“There are newer concepts in error detection, including bias, that analyse patient result trends: called patient-based quality control. These techniques can overcome some of the limitations of traditional IQC/EQA approaches, such as commutability and timeliness.”
The practical, hands-on workshop introduces participants to the key steps in implementing patient-based QC in a laboratory setting.
“The workshop seeks to introduce participants to the basic concepts of patient-based quality control: what it is, how to set it up, and how to run it routinely in the laboratory,” says Dr Loh. “There will also be an opportunity to try some available tools that can be applied in the laboratory.”
Participants will receive a practical Excel tool to support implementation in their own labs, and the workshop will also be a great opportunity to learn and interact with several international experts in this area.
It will be Dr Loh's first time at Labquality Days, and we are excited that he will be sharing his expertise with us. The number of workshop participants is limited, so be sure to secure your place when you register for the congress!