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Recent Artery Conversations

Pseudohyperkalemia
JUNE.13.2019

I have a possible preanalytic error on a k+. The specimen was falsely elevated by 2 mmol. Our result was 6.4 and when the patient was drawn 1 hour later the result was 4.4. The specimen was HIL negative by analyzer and visual inspection. There was no mislabeling and the phlebotomist reports no adverse conditions with the draw and the patient does not have a port or stent. We ran both serum and plasma specimens. We sent the specimens to another lab and they got a result of 6.5 and agreed the specimens were HIL negative. This is the second time this has happened to this particular patient. Any ideas?

Salivary Testosterone--Anyone Running It?
JUNE.13.2019

One of our endocrinologists and I were chatting about some studies she's read that use salivary testosterone and other hormones. She was curious about the assays and I am too. It looks like there are some ELISA kits out there and a few labs in Europe that have published an LC/MS/MS method. Is anyone aware of a CLIA lab in the US that offers this assay clinically?

Neonatal Serum Bilirubin and Capillary Blood Gas Samples?
JUNE.13.2019

I would be grateful if you kindly share with me who is collecting the neonatal serum bilirubin and capillary blood gas samples in your hospital. I recently joined a hospital (gulf region) where POCT laboratory technicians are collecting the samples and I challenged the clinicians and nurses but there is a lot of resistance. They actually used children's hospital of Philadelphia hospital as an example of the same practice. I understand that there are respiratory technicians in some sites but are they under the POCT lab administration? Give your advice.

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