Are there any restrictions in terms of the amount of capillary blood sampling? For example there is an indication of the determination of complete blood count, glucose, acid-based status and CRP. Do you insist on a capillary sample, or will all the proposed test samples from a vein except acid-base status? Furthermore, in this situation, it is necessary to take capillary blood in three different containers. The child is small and dehydrated and in two tries we have failed capillary blood sample for all required tests. Is there a limit to the number of tries sampling capillary blood?
It depends on the volume required by the automatic machines. Some machines only need 150-200 ul serum to run the whole panel of electrolytes and liver fundction. But the technician has to specifically spin the blood for the machine. I do not think there is a good evidence that capillary blood result will be the same as venous blood or arterial blood but we just assume that way. As long as we do not bruise the baby too badly people will keep trying until they can get enough amount of blood.
Can you answer what is your practice monitoring of the newborn on a respirator in the intensive care unit, with acidosis, on infusion (glucose, electrolytes). Analysis to monitor: glucose, electrolytes and acid-base status and blood gas analysis. Do the above analysis of the capillary sample? How often? Where capillary sample taken after a few days when the recommended sites for capillary sampling is no longer available and no scars from previous stings?
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