Art and Science of Laboratory Medicine

Art and Science of Laboratory Medicine

Friday, December 25, 2015

Preanalytical Challenge

What do you say about this sample?
by Marcin Balasa‎



CORRECT ANSWER: This sample was taken to open tube among with other samples. The phlebotomists mixed the caps by mistake after filling the tubes. This is a plasma separating tube (PST). The gele is clearly visible between the serum and cells.

As a conclusion new sample is requested because of potential potassium contamination of K2EDTA tube cap.


Source: Facebook via Diagnosci.pl
Image credits: Marcin Balasa

12 comments:

Benard mwangi said...

The sample has Trace of haemolysis

Atique Mangla said...

Lipemic I guess!

Adina Ciursas said...

ser icteric cu valoare mare a Br.

Paola Rodríguez said...

Under filled tube. Anticoagulant/blood proportion not maintained, so results are going to be faulty

Stef M said...

Someone put an EDTA top on a PST tube.

Mei Chooi said...

Agree with Stef M

Cindy said...

Dilute it. Amazingly high white count/ buffy coat.

Santiago P said...

It looks like a EDTA with separator?
Posible diagnosis The nurse made phlebotomy with syringe, open tubes, filled manually and recaped erroneusly

Rit said...

The serum is potentially contaminated with EDTA as the wrong cap was put on.

Amany Mohy said...

Underfilling of EDTA tube.
Plasma shows deep yellowish discolouration ( possible hyperbilirubinemia).
Puffy coat due to high WBCs count ( for total and differential count then IFT)

B said...

Extremely high WBC count. Buffy coat is 10X thicker than it should be.

Fernando Vazquez said...

High WBC maybe >100,000/mm3

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