Sunday, July 6, 2014

Information And Guidelines On Reusable Blood Warmer

By Rosella Campbell


Blood warming is a standard practice in the medical field nowadays. This is given by the fact that this red liquid is kept refrigerated in storage, probably in a reusable blood warmer, until is needed to be used in transfusion. These warmers are recommended in these situations as well as in some others. Medical staff should take the specific medical need of the patient into consideration, and also adapt to conditions and outside factors when starting the transfusion.

Use of warming devices for the transfusions is appropriate in cases of resuscitation when rapid transfusions are needed. A patient might fall into hypothermia from administration of fluid that is too cold. Medical professionals are urged to avoid this situation at all times.

When the volume to be administered is higher than 25%, it is advisable to use warming devices prior to transfusion. In such situations it is very probable that even more blood units may be needed. Therefore the units might need to be administered quickly.

Patients that have cold agglutinins also need transfusions with warm blood. In cases that involve neonates, treatment with special care should be considered by the medical staff as well. Patients that might be have high risk of cardiac dysfunction from transfusions, as well as children or elderly patients, should benefit of the same amount of attention and extra care as patients previously mentioned.

Medical staff must only use certified equipment that offers specific features when warming is required. A visible thermometer must be attached at all times to these medical warming devices, and must also contain an audible alarm that has to be functioning and raise attention if the temperature exceeds a value higher than 41 degree celsius.

Warming equipment has several extra advantages. It can warm both this red liquid and IV fluids, making it a diverse tool used for multi-purpose medical use. The device can reach temperatures of 38 degree celsius with a flow rate of ~2-150 mL/min, and the heater is adjusted automatically when needed. They can also increase the fluid's temperature by 10 degree celsius, having a flow rate of 40 mL/min.

Maintenance is mandatory every 12 months, and it must be carefully monitored. If malfunctions occur, the devices can become extremely dangerous. If the temperature of this vital fluid exceeds 41 degree celsius, the medical staff should immediately inform the blood bank.

Theatres, ASCU, maternal-fetal medicine, nurseries, 6B nurseries and 6D PICU are all locations where these medical warming devices can be found. When the medical staff uses these devices, they have to write down the operating temperature. Again, blood transfusions are recommended only by using these devices.

All sets of standard infusion can be processed by professional warming devices. They offer a backup battery, light-weight, and portable. It takes about 45 seconds to complete the setup, and they are disposable when the job is completed.

Nowadays, the medical staff can use disposable fluid warmers (blood and IV fluids), all thanks to technology which has evolved immensely in the medical industry. Thermiflow fluid warmers, the most recently developed disposable devices, are self-powered medical machines. They are activated automatically when exposed to the atmospheric air, and can offer changes in temperature of 10 degree celsius with a 40 mL/min flow rate.




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