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Patients with high output stomas and enterocutaneous fistulae are prone to fluid and electrolyte abnormalities, particularly dehydration, hyponatraemia and hypomagnesaemia. As well as medication to prolong transit time and aid absorption, proton pump inhibitors (PPIs) have been advocated to reduce gastrointestinal losses. Recent, reports in other clinical areas have linked long-term PPI use to hypomagnesaemia...
We investigated the presence of interference in a patient who had an elevated CA19-9 concentration using the ADVIA Centaur but results within reference limits with ROCHE Modular Analytics E170 and Brahms KRYPTOR analysers.We performed repeat analyses using the same (ADVIA Centaur) and alternate immunossays (Roche Modular Analytics E170 and Brahms KRYPTOR) on the patient's sample and investigated for...
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