New Method for Measuring Blood Urea Nitrogen (BUN)
Author Information
Author(s): William E. Neeley, Melissa Tyson, Kathleen O'Classen, Mary Gruber
Primary Institution: University of California School of Medicine
Hypothesis
The study investigates the discrepancies in BUN values obtained from two different automated chemistry analysers.
Conclusion
The development of a new kinetic method for BUN analysis eliminated erroneous discrepancies in results from the Hitachi analysers.
Supporting Evidence
- The study found that the BUN values from the Hitachi 737 and 705 were significantly different for the same patient.
- A new reagent system was developed to address the discrepancies in BUN measurements.
- Normal BUN values were obtained using the new method after previously elevated values were recorded.
Takeaway
Doctors found that two machines gave very different results for the same blood test, so they created a new way to test that fixed the problem.
Methodology
The study involved comparing BUN results from different analysers and developing a new reagent system and kinetic method for analysis.
Potential Biases
Potential bias due to the small sample size and specific patient conditions.
Limitations
The exact cause of precipitation in the reagents is unknown, and the study was limited to a small number of patients.
Participant Demographics
One patient was a 73-year-old male; additional patients had different forms of multiple myeloma.
Want to read the original?
Access the complete publication on the publisher's website