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- or a blood gas syringe with liquid Na heparin?? Though there is a 20% change in the haematocrit which sounds like a lot of liquid to me. Elizabeth Hall > ---------- > From: Dr A.K. Trull[SMTP:[log in to unmask]] > Reply To: Dr A.K. Trull > Sent: 23 January 2002 17:45 > To: [log in to unmask] > Subject: Re: Unexplained results > > Probably a silly suggestion but is there any chance that the dilute > samples with high sodiums could have been inadvertently been put into > sodium citrate tubes before being transferred to heparin tubes? > > Andrew Trull, PhD > Clinical Scientist Grade C > Head of Clinical Pharmacology > Department of Pathology > Papworth Hospital > Papworth Everard > Cambridge CB3 8RE > > Tel.: 01480-830541 (x4301) > FAX: 01480-364777 > > On Wed, 23 Jan 2002, Hogan, Tim wrote: > > > We recently received a blood sample taken from a six year old boy who > > attended our phlebotomy Dept. His clinical details were recurrent cough > and > > abdominal pains with possible weight loss, he was not on a drip. > > The sample was taken into a disposable 5ml syringe and then transferred > to a > > small plastic Lithium heparin tube for Chemistry and an EDTA for > > Haematology. > > The patients results which were very abnormal are listed below. The > results > > were phoned to the GP and the patient was admitted to the paediatric > ward a > > few hours later and another blood sample taken. The results for which > were > > normal. This same situation occurred about a month ago but on an adult > > patient who was on plasma expanders and the samples taken into 7ml > Beckton > > Dickenson SST tubes. > > > > The original sample appears diluted but with a high Sodium which is not > > detected (or not so detected) by Direct ISE. The high Sodium is > repeatable > > on two different Olympus AU600 (indirect ISE) analysers. The Haematology > > sample also showed similar dilution effect. Has anyone any ideas what > could > > be causing this effect? > > Original Original Direct ISE Repeat > > Analyser A Analyser B sample > > Na 173 171 148 140 > > K 3.2 3.2 2.7 3.7 > > Urea 3.6 6.1 > > Glucose 2.9 4.8 > > Creat 46 62 > > Calcium 1.34 2.5 > > Albumin 31 46 > > TP 51 70 > > ALT 12 12 > > ALP 128 187 > > Bilirubin 4 3 > > Osmolality 275 289 > > Hb 8.3 11 > > WCC 7.2 13.1 > > platelets 411 570 > > HCT 25% 32% > > RBC 3.1 4.1 > > MCV 80 78 > > > > > > Tim Hogan > > Basildon > > > > > > > > ********************************************************************** > > This email and any files transmitted with it are confidential and > > intended solely for the use of the individual or entity to whom they > > are addressed. If you have received this email in error please notify > > the system manager at mailto:[log in to unmask] > > > > This footnote also confirms that this email message has been swept by > > MIMEsweeper for the presence of computer viruses. > > > > www.mimesweeper.com > > ********************************************************************** > > > This message and any attachments to it is intended only for the individual or company to which it is addressed and may contain information which is privileged, confidential or prohibited from disclosure or unauthorised use. If the recipient of this transmission is not the intended recipient, or the employee or agent responsible for delivering such materials to the intended recipient, you are hereby notified that any use, any form of reproduction, dissemination, copying, disclosure, modification, distribution and/or publication of this e-mail message or its attachments other than by its intended recipient is strictly prohibited by the sender. If you have received it in error, please notify us immediately using the address [log in to unmask] and destroy the message and all copies in your possession.