Blood Products
Components or whole blood used in transfusion therapy, including packed red blood cells, fresh frozen plasma, platelets, and whole blood. The preferred volume for hemorrhagic shock resuscitation.
In the Field
Blood products are what crystalloid is not: volume that carries oxygen and clotting factors. Modern trauma doctrine treats blood as the preferred resuscitation fluid for hemorrhagic shock, which has driven a steady forward deployment of blood products from hospital pharmacies into ambulances, air medical units, and increasingly tactical paramedic kits. The procurement implications are substantial because blood products require refrigeration, monitoring, expiration management, and specific protocols that crystalloid does not. For agencies considering blood programs, the equipment is the smaller part of the investment. The infrastructure to support it is the larger part.
Common Mistake
Considering blood products only as a hospital intervention when modern tactical medical doctrine increasingly deploys blood products at the point of injury and during evacuation
Technical Detail
Blood products are the components or complete forms of human blood used in transfusion therapy. Modern tactical medical doctrine increasingly emphasizes blood product administration as the preferred resuscitation strategy for hemorrhagic shock, replacing or supplementing traditional crystalloid resuscitation.
Major blood product categories:
Whole blood. Complete blood as collected from a donor, containing red cells, plasma, platelets, and clotting factors in their natural ratios. The preferred product for hemorrhagic shock resuscitation when available. Carries oxygen, supports clotting, expands volume, and provides all components of blood in a single product.
Low Titer O Whole Blood (LTOWB). Type O whole blood that has been screened to ensure low titers (concentrations) of anti-A and anti-B antibodies, allowing safer administration to non-O recipients in emergency conditions. The preferred forward-deployed blood product in current military and progressive civilian tactical medicine. See the Universal Donor entry.
Packed Red Blood Cells (PRBCs). Red blood cells separated from plasma and concentrated. The most commonly stocked blood product in hospital settings due to ease of storage and longer shelf life than whole blood. PRBCs carry oxygen but lack the plasma and platelet components present in whole blood.
Fresh Frozen Plasma (FFP). The plasma component of blood, frozen for storage. Contains clotting factors and is used to address coagulopathy. Must be thawed before administration, with thaw time being a logistical challenge in emergency settings. Liquid plasma (refrigerated rather than frozen) addresses some of these constraints.
Platelets. The cellular component of blood responsible for initial clot formation. Stored at room temperature with shelf life measured in days. Used in massive transfusion protocols and specific coagulation disturbances.
Cryoprecipitate. A concentrate of specific clotting factors derived from plasma. Used in fibrinogen replacement and selected coagulopathy management.
Components versus whole blood. The historical move toward component therapy (separating donated blood into individual products) was driven by storage logistics, transfusion specificity, and donor blood efficiency. However, in massive transfusion for hemorrhagic shock, the components must be administered in balanced ratios approximating whole blood (typically 1:1:1 ratios of plasma, platelets, and red cells). The modern recognition that this balanced approach better supports trauma patients has driven renewed interest in whole blood transfusion, particularly in tactical and forward-deployed settings.
Storage and logistics. Blood products carry specific storage requirements that complicate forward deployment:
Whole blood and PRBCs require refrigeration at 1 to 6 degrees Celsius. Shelf life is approximately 21 to 42 days depending on product and storage conditions.
LTOWB has specific protocols for collection, screening, storage, and rotation that vary by regulatory environment.
Plasma (frozen) requires freezer storage and must be thawed for administration.
Platelets require room temperature storage with continuous gentle agitation, and shelf life is typically 5 to 7 days.
All blood products require strict temperature monitoring, expiration tracking, and chain-of-custody documentation.
Forward deployment. Blood products are increasingly carried in:
Military forward deployed medical assets. Combat medics, special operations medical teams, and forward surgical teams have carried blood products in various forms throughout recent operations.
Air medical and critical care transport. Many air medical services now carry blood products as standard equipment for trauma and critical care transports.
Selected ground EMS services. Progressive EMS programs in some regions have implemented blood programs, often in partnership with regional blood banks and trauma centers.
Tactical paramedic and SWAT medical teams. Specialized programs have implemented forward blood capability for high-acuity tactical operations.
Walking blood banks. Pre-screened personnel who can serve as on-demand donors in austere environments. Used in military operations and selected civilian programs.
Walking blood banks deserve specific note. In environments where stored blood products are not feasible (extreme remoteness, prolonged operations), pre-screened personnel can provide fresh whole blood at the point of need. The model has been used in military operations and is being explored for selected civilian tactical applications.
Field administration considerations:
Type compatibility. In emergency settings without time for typing and crossmatching, universal donor (O negative or LTOWB) products are used. See the Universal Donor entry.
Warming. Cold blood products administered without warming worsen hypothermia. Field-portable blood warmers are essential equipment for blood programs.
Calcium administration. Citrate in stored blood products binds calcium in the recipient's circulation, producing hypocalcemia that impairs coagulation. Calcium administration concurrent with blood transfusion is a key element of Damage Control Resuscitation. See the Hypocalcemia entry.
Documentation. Blood product administration requires specific documentation including product identification, lot numbers, time of administration, patient response, and adverse events.
Procurement and program implications. Implementing a blood program for tactical medical use requires:
Refrigeration and warming equipment. Field-portable blood storage and warming devices.
Monitoring systems. Temperature monitoring with alarms and documentation.
Inventory management. Rotation of products before expiration, replacement protocols, and waste tracking.
Regulatory compliance. State and federal blood handling regulations vary and are stringent.
Medical oversight. Service medical director protocols, quality assurance procedures, and ongoing review.
Provider training. Blood product administration training, transfusion reaction recognition, and emergency response.
Partnerships. Most civilian programs operate in partnership with regional blood banks and trauma centers.
The cost and complexity of blood programs is substantial relative to traditional EMS equipment, but the outcome benefits in hemorrhagic shock are significant. Programs that have implemented forward blood capability typically report improved outcomes for major trauma patients, supporting continued expansion of the practice.
Major blood product categories:
Whole blood. Complete blood as collected from a donor, containing red cells, plasma, platelets, and clotting factors in their natural ratios. The preferred product for hemorrhagic shock resuscitation when available. Carries oxygen, supports clotting, expands volume, and provides all components of blood in a single product.
Low Titer O Whole Blood (LTOWB). Type O whole blood that has been screened to ensure low titers (concentrations) of anti-A and anti-B antibodies, allowing safer administration to non-O recipients in emergency conditions. The preferred forward-deployed blood product in current military and progressive civilian tactical medicine. See the Universal Donor entry.
Packed Red Blood Cells (PRBCs). Red blood cells separated from plasma and concentrated. The most commonly stocked blood product in hospital settings due to ease of storage and longer shelf life than whole blood. PRBCs carry oxygen but lack the plasma and platelet components present in whole blood.
Fresh Frozen Plasma (FFP). The plasma component of blood, frozen for storage. Contains clotting factors and is used to address coagulopathy. Must be thawed before administration, with thaw time being a logistical challenge in emergency settings. Liquid plasma (refrigerated rather than frozen) addresses some of these constraints.
Platelets. The cellular component of blood responsible for initial clot formation. Stored at room temperature with shelf life measured in days. Used in massive transfusion protocols and specific coagulation disturbances.
Cryoprecipitate. A concentrate of specific clotting factors derived from plasma. Used in fibrinogen replacement and selected coagulopathy management.
Components versus whole blood. The historical move toward component therapy (separating donated blood into individual products) was driven by storage logistics, transfusion specificity, and donor blood efficiency. However, in massive transfusion for hemorrhagic shock, the components must be administered in balanced ratios approximating whole blood (typically 1:1:1 ratios of plasma, platelets, and red cells). The modern recognition that this balanced approach better supports trauma patients has driven renewed interest in whole blood transfusion, particularly in tactical and forward-deployed settings.
Storage and logistics. Blood products carry specific storage requirements that complicate forward deployment:
Whole blood and PRBCs require refrigeration at 1 to 6 degrees Celsius. Shelf life is approximately 21 to 42 days depending on product and storage conditions.
LTOWB has specific protocols for collection, screening, storage, and rotation that vary by regulatory environment.
Plasma (frozen) requires freezer storage and must be thawed for administration.
Platelets require room temperature storage with continuous gentle agitation, and shelf life is typically 5 to 7 days.
All blood products require strict temperature monitoring, expiration tracking, and chain-of-custody documentation.
Forward deployment. Blood products are increasingly carried in:
Military forward deployed medical assets. Combat medics, special operations medical teams, and forward surgical teams have carried blood products in various forms throughout recent operations.
Air medical and critical care transport. Many air medical services now carry blood products as standard equipment for trauma and critical care transports.
Selected ground EMS services. Progressive EMS programs in some regions have implemented blood programs, often in partnership with regional blood banks and trauma centers.
Tactical paramedic and SWAT medical teams. Specialized programs have implemented forward blood capability for high-acuity tactical operations.
Walking blood banks. Pre-screened personnel who can serve as on-demand donors in austere environments. Used in military operations and selected civilian programs.
Walking blood banks deserve specific note. In environments where stored blood products are not feasible (extreme remoteness, prolonged operations), pre-screened personnel can provide fresh whole blood at the point of need. The model has been used in military operations and is being explored for selected civilian tactical applications.
Field administration considerations:
Type compatibility. In emergency settings without time for typing and crossmatching, universal donor (O negative or LTOWB) products are used. See the Universal Donor entry.
Warming. Cold blood products administered without warming worsen hypothermia. Field-portable blood warmers are essential equipment for blood programs.
Calcium administration. Citrate in stored blood products binds calcium in the recipient's circulation, producing hypocalcemia that impairs coagulation. Calcium administration concurrent with blood transfusion is a key element of Damage Control Resuscitation. See the Hypocalcemia entry.
Documentation. Blood product administration requires specific documentation including product identification, lot numbers, time of administration, patient response, and adverse events.
Procurement and program implications. Implementing a blood program for tactical medical use requires:
Refrigeration and warming equipment. Field-portable blood storage and warming devices.
Monitoring systems. Temperature monitoring with alarms and documentation.
Inventory management. Rotation of products before expiration, replacement protocols, and waste tracking.
Regulatory compliance. State and federal blood handling regulations vary and are stringent.
Medical oversight. Service medical director protocols, quality assurance procedures, and ongoing review.
Provider training. Blood product administration training, transfusion reaction recognition, and emergency response.
Partnerships. Most civilian programs operate in partnership with regional blood banks and trauma centers.
The cost and complexity of blood programs is substantial relative to traditional EMS equipment, but the outcome benefits in hemorrhagic shock are significant. Programs that have implemented forward blood capability typically report improved outcomes for major trauma patients, supporting continued expansion of the practice.