While on the TPE, two consecutive blood samples drawn from the proximal lumen of the apheresis catheter yielded K1levels of 9.41 and 8.71 mEq/L (normal, 3.5-5.5 mEq/L), respectively” Mustieles et al (2017).
Abstract:
“We report the case of a patient undergoing therapeutic plasma exchange (TPE) because of acute liver failure after hepatitis B virus infection in whom the unexpected proximity of the end tips of two central vein catheters led to perplexing laboratory results… While on the TPE, two consecutive blood samples drawn from the proximal lumen of the apheresis catheter yielded K1levels of 9.41 and 8.71 mEq/L (normal, 3.5-5.5 mEq/L), respectively.” Mustieles et al (2017).
[ctt link=”78OUI” template=”1″]ReTweet if useful… Erroneous blood results following central venous catheter sampling https://ctt.ec/78OUI+ @ivteam #ivteam[/ctt]
Reference:
Mustieles, M-J., Jiménez, M., Robles, V., Chamorro, V. and Pereira, A. (2017) Closer than expected: central vein catheters and perplexing laboratory results. Transfusion. 57, p.499–500.
doi:10.1111/trf.13965
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