Nurse Arcade
Blood Typing +
Transfusion
Match the component. Verify the patient. Catch the reaction.
Part 1 – Compatibility foundations
ABO begins with antigens and antibodies
Ask what is on the red cell and which antibodies circulate in plasma.
Type A
Red cells display A antigen. Plasma normally contains anti-B. This person can receive A or O red cells.
Type B
Red cells display B antigen. Plasma normally contains anti-A. This person can receive B or O red cells.
Type AB
Red cells display both A and B antigens. Plasma contains neither anti-A nor anti-B. This person can receive red cells from any ABO group.
Type O
Red cells display neither A nor B antigen. Plasma contains both anti-A and anti-B. This person can receive only type O red cells.
Part 1 – Red-cell matching
Red-cell compatibility follows donor antigens
The donor red cells must not introduce an ABO antigen the recipient will attack.
O recipient
Receives O red cells only. O is the most restrictive RBC recipient.
A recipient
Receives A or O red cells.
B recipient
Receives B or O red cells.
AB recipient
Receives AB, A, B, or O red cells. AB positive is the universal RBC recipient when Rh is included.
Part 1 – Plasma and Rh
Plasma reverses the ABO logic
Donor plasma antibodies matter. AB plasma lacks anti-A and anti-B.
Plasma compatibility
Recipient O may receive O, A, B, or AB plasma. Recipient A receives A or AB. Recipient B receives B or AB. Recipient AB receives AB.
Universal plasma donor
AB is the universal plasma donor. This is the reverse of the O-negative red-cell rule.
Rh factor
Rh-positive means D antigen is present. Rh-negative recipients generally receive Rh-negative RBCs. Rh-positive recipients may receive positive or negative RBCs.
Pregnancy connection
Maternal anti-D formation can affect a current or future Rh-positive fetus. Obstetric testing and Rh immune globulin protocols guide prevention.
Part 2 – Blood components
Choose the component for the deficit
The ordered component should match the clinical need.
PRBCs
Increase oxygen-carrying red-cell mass for selected anemia or blood-loss situations.
Platelets
Support primary hemostasis when platelet number or function is inadequate.
Plasma
Provides multiple coagulation factors for selected bleeding or factor deficiencies.
Cryoprecipitate
Concentrated fibrinogen and selected factors when fibrinogen replacement is indicated.
Whole blood
Red cells plus plasma for selected massive-hemorrhage or protocol-driven situations.
Special products
Leukoreduced, irradiated, washed, or antigen-negative products address specific risks.
Part 3 – Pretransfusion safety
The safety chain starts before the bag
Patient identification and specimen integrity prevent wrong-blood events.
Order + consent
Confirm component, amount, rate, indication, consent, and ordered premedication.
Type + screen
ABO/Rh typing and antibody screen identify compatibility needs.
Crossmatch
Tests intended donor red cells against recipient plasma when required.
Baseline
Assess vital signs, lungs, fluid status, access, history, and previous reactions.
Bedside check
Verify patient, unit, compatibility, expiration, and identifiers using the required process.
Teach
Ask the patient to report chills, fever, itching, dyspnea, pain, anxiety, or feeling unwell.
Part 3 – Administration
Start close, watch closely
Exact timing, tubing, filters, and monitoring intervals are facility and product specific.
Before starting
Use approved tubing, filter, access, and compatible solution. Do not add medications to the blood product.
At initiation
Begin according to policy and remain able to assess the patient during the early period when acute reactions may appear. Compare vital signs with baseline.
During
Reassess symptoms, vital signs, lungs, access, and fluid status. Verify rate and completion window.
After
Document product, unit identifiers, times, volume, assessment, vital signs, and response. Evaluate whether the intended outcome occurred.
Part 4 – Reaction recognition
A reaction is a pattern, not a trivia label
Stop and assess first. Classification follows immediate safety actions.
Acute hemolytic
Fever, chills, pain, hypotension, dyspnea, or hemoglobinuria; may follow ABO incompatibility.
Febrile
Fever rise, chills, headache, and discomfort without another clear cause.
Allergic / anaphylaxis
Itching or hives; severe cases may include wheeze, edema, hypotension, or airway compromise.
TACO
Dyspnea, crackles, hypertension, JVD, edema, and hypoxemia from circulatory overload.
TRALI
Acute hypoxemia and noncardiogenic pulmonary edema temporally related to transfusion.
Septic / contamination
Fever, rigors, hypotension, nausea, or shock; platelets carry important bacterial risk.
Part 4 – Immediate response
Suspected reaction: protect first
Use the local protocol and escalate based on instability.
Stop
Stop the blood product immediately.
Keep access
Maintain IV access with the approved setup; do not flush suspect product into the patient.
Assess + support
Airway, breathing, circulation, vital signs, oxygenation, lungs, symptoms, and emergency support.
Verify
Recheck patient, component, identifiers, compatibility information, and clerical match.
Notify
Notify provider and transfusion service or blood bank according to protocol.
Preserve + document
Keep unit and tubing for evaluation; obtain ordered specimens and document response.
Apply
Practice compatibility and safety
Answer before checking the source guide and your course materials.
- Type A recipient: which ABO red-cell groups are compatible?
- Which ABO group is the universal plasma donor?
- Why is O-negative the universal red-cell donor?
- What does a type and screen establish?
- Which component primarily replaces fibrinogen?
- The patient develops itching and throat tightness. What is the first action?
- Crackles, JVD, hypertension, and dyspnea suggest which reaction?
- Fever, rigors, and hypotension raise concern for which product risk?
- Can medications be added directly to a blood unit?
- After stopping a suspected reaction, who must be notified?
Reference notes
Sources + boundaries
Use current facility policy and blood-bank instructions for administration details.
- American Red Cross: Blood Types
- AABB pretransfusion testing guidance
- CDC Blood Safety Basics and contamination guidance
- OpenStax Clinical Nursing Skills 13.4
- OpenStax Medical-Surgical Nursing 16.7