Severe Coagulation Dysfunction caused by Vitamin K Deficiency in an Elderly Patient
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Updated: Jun 28, 2025

Measurement of Factor V Activity in Human Plasma Using a Microplate Coagulation Assay
Published on: September 9, 2012
Background:
Vitamin K deficiency can lead to severe coagulation dysfunction, which may be dangerous and fatal, especially in patients undergoing surgery.
Methods:
We report an 84-year-old male patient with gallstones and cholecystitis who had a severe coagulation disorder without bleeding symptoms after endoscopic papillary balloon dilation for removal of bile duct stones. After vitamin K supplementation, the coagulation dysfunction was corrected the next day.
Results:
In this case, long-term antibiotic treatment, inadequate diet, and abnormal liver function led to coagulation dysfunction. After vitamin K supplementation, the blood coagulation disorder was corrected and serious consequences were prevented. Significantly elevated coagulation function was considered to be caused by vitamin K deficiency.
Conclusions:
This case indicates that coagulation dysfunction caused by vitamin K deficiency may occur within a few days. Laboratory personnel should fully understand the risks of vitamin K deficiency in elderly patients undergoing surgery with severely restricted diet, impaired absorption, and long-term use of cephalosporin anti-inflammatory therapy, and promptly remind clinical doctors.
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