TY - JOUR
T1 - Venepuncture for calcium assays
T2 - Should we still avoid the tourniquet?
AU - McMullan, A. D.
AU - Burns, J.
AU - Paterson, C. R.
PY - 1990
Y1 - 1990
N2 - Blood was collected by venepuncture from nine healthy subjects over a ten minute period before applying a standard tourniquet, and over a ten minute period afterwards. Plasma ionised calcium was unaltered by the tourniquet, whereas total calcium, total protein and albumin in serum increased modestly. However, there was no effect on total calcium adjusted for albumin. Even without albumin adjustment the change in total calcium was negligible within one minute of the application of the tourniquet. We consider that in ordinary clinical practice, there is no need to perform venepuncture for calcium assays without a tourniquet.
AB - Blood was collected by venepuncture from nine healthy subjects over a ten minute period before applying a standard tourniquet, and over a ten minute period afterwards. Plasma ionised calcium was unaltered by the tourniquet, whereas total calcium, total protein and albumin in serum increased modestly. However, there was no effect on total calcium adjusted for albumin. Even without albumin adjustment the change in total calcium was negligible within one minute of the application of the tourniquet. We consider that in ordinary clinical practice, there is no need to perform venepuncture for calcium assays without a tourniquet.
UR - http://www.scopus.com/inward/record.url?scp=0025351248&partnerID=8YFLogxK
U2 - 10.1136/pgmj.66.777.547
DO - 10.1136/pgmj.66.777.547
M3 - Article
C2 - 2217012
AN - SCOPUS:0025351248
SN - 0032-5473
VL - 66
SP - 547
EP - 548
JO - Postgraduate Medical Journal
JF - Postgraduate Medical Journal
IS - 777
ER -