Blood Warmers

موضوع: Blood Warmers الجمعة فبراير 05, 2010 8:55 pm

Blood Warmers
[ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذا الرابط]
What does it do
Blood is stored at 2 C° and needs to be warmed up during blood transfusion to between 37 C° and 41 C°. This prevents hypothermia (body temperature too low)

Physiology
blood loss the patient can suffer from anemia (reduced number of blood cells) and low blood pressure (from the loss of blood volume) which can be life threatening.
Blood transfusions are also often used for treatments of blood related diseases like leukaemia. The blood is warmed up to body temperature before infusing it into the patient. The blood must not be heated above 43 C° or the blood cells will die (haemolysis)

How it works
There are different types of blood warmers. Some blood warmers have a water bath where the water is heated up to a set temperature e.g. 40 C°. A blood bag is put in to this bath to warm up. The other types (e.g. the Prisma Prismatherm) has a coiled blood line around its body. While the blood is flowing through the coiled blood line it heats the blood to the set temperature. All blood warmers must have an overheat cutout thermostat to prevent the blood from overheating above 43 C°

Units of measurement
Temperature = C°

Typical values
Operation temperature 37 C° – 41 C°
Over-temperature alarm/cut-out 42 C° - 43 C°

موضوع: رد: Blood Warmers الأحد فبراير 28, 2010 5:51 am

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