When blood is kept refrigerated in storage until it is used in transfusion, it is a common practice in the medical field these days to use warming. A reusable blood warmer is recommended in various situations such as this. The medical needs specific to the individual patient, along with outside factors, should be taken in consideration by the medical staff when making decisions about administering this red liquid.

Medical staff should use warming devices when the volume intended for transfusion measures at 25% of the required amount of the patient's body. In many cases, medical professionals may be required to quickly administer a large number of units of this red liquid, and the temperature in these mass transfusions must be adequate to safely be transfused into the body.

A warming device is also needed when transfusing this life-saving fluid to patients that have cold agglutinins disease. It's also required if the patient is a newborn, special care and consideration should be taken for the delicate nature of the body. The same attention must be made to patients with high risk of cardiac dysfunction, geriatric, or pediatric patients.

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.

In situations that require this red liquid to be warmed, medical staff should only use professional equipment. Medical warming devices normally have an attached visible thermometer. They also need to be equipped with a functioning audible alarm that can alert the staff in case the temperature goes beyond a value higher than 41 degree celsius.

Professional warming equipment can offer several advantages. They are practical, and can be used in multi-purposed cases like warming this vital fluid and also transferring IV fluids. They have a flow rate between ~2-150 mL/min, can easily reach temperatures of 38degree celsius, and have heaters that automatically adjust blood temperature when needed.

Maintenance for devices is mandatory for every 12 months, and the process has to be carefully monitored. These devices can lead to extremely dangerous situations if they malfunction. The blood bank should be informed immediately if the temperature this vital fluid exceeds 41 degree celsius.

Places like blood banks should be informed immediately if the temperature of this vital fluid is higher than 41 degree celsius. The devices can also be found in ASCU, theatres, special care nurseries, maternal/fetal medicine, 6B nurseries, and 6D PICU. They are all places where there can be no chance of malfunction.

Warming devices can handle all types of standard infusion. They are portable, light-weight, and have backup batteries. The setup takes about 45 seconds, and they are disposed afterwards. Due to the strict operational and maintenance procedures, it's highly important that blood should be warmed only by using these devices.

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.