Hi guys,
Just querying has anybody come across this unusual pattern of blood results, see below. I suspect its preanalytical – Albumin, Sodium, Potassium, and ALK are affected.
We received a Lithium Heparin and Serum sample on the same patient in the same delivery. There is some interference with the Lithium Heparin sample that is not affecting the serum sample.
Samples were assayed x2 on two different days and we retrieved the same result!!
Any ideas!!
|
Analyte
|
Lithium Heparin Tube (Sarstedt)
( B,101953) Sample Date and Processed 31/05/17
|
Serum Tube (Sarstedt)
(B,101952) Sample Date and
Processed 31/05/17
|
*Serum Tube (B,101952)
Sample Date: 31/05/17
Processed 01/06/17 (Day Old)
|
|
Sodium
|
132 mmol/L
|
132mmol/L
|
NA
|
143 mmol/L
|
144 mmol/L
|
|
Potassium
|
6.7 mmol/L
|
|
NA
|
4.7 mmol/L
|
4.71 mmol/L
|
|
Chloride
|
102 mmol/L
|
102 mmol/L
|
NA
|
104 mmol/L
|
|
Urea
|
3.8 mmol/L
|
NA
|
4.0 mmol/L
|
|
Creatinine
|
83 umol/L
|
NA
|
86 mmol/L
|
|
Calcium
|
2.274 mmol/L (R101953)
|
NA
|
2.353 mmol/L
|
|
Total Protein
|
74 g/L
|
NA
|
73 g/L
|
|
Albumin
|
6 g/L
|
01/06/17 8.8g/L (Cup)
|
NA
|
46 g/L
|
45 g/L
|
|
Bilirubin
|
10 umol/L
|
NA
|
5.1 umol/L
|
|
GGT
|
64 U/L
|
NA
|
67 U/L
|
|
ALK
|
75 U/L
|
NA
|
84 U/L
|
|
ALT
|
52 U/L
|
NA
|
52 U/L
|
|
Cholesterol
|
5.3 mmol/L
|
NA
|
5.4 mmol/L
|
|
Triglyceride
|
1.3 mmol/L
|
NA
|
1.4 mmol/L
|
|
Cholesterol- HDL
|
1.1 mmol/L
|
NA
|
1.1 mmol/L
|
|
cLDL
|
3.6 mmol/L
|
NA
|
3.8 mmol/L
|
|
FT4
|
13.6 pmol/L
|
NA
|
13.2 pmol/L
|
|
TSH
|
1.13 mU/L
|
NA
|
1.2 mU/L
|
|
Serum Index H
|
57
|
NA
|
10
|
|
Serum Index I
|
1
|
NA
|
1
|
|
Serum Index L
|
13
|
NA
|
5
|
|
Lithium
|
NA
|
0.68 mmol/L
|
NA
|
|
|
|
|
|
|
|
Kind Regards,
Nora Keogh,
Chief Medical Scientist,
Clinical Chemistry Laboratory,
Naas General Hospital,
(045 843044
