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Test Code TRXN Transfusion Reaction Workup

Principle

A rapid detection and salvage procedure for victims of incompatible blood transfusion is necessary. The initial studies should be a highly pertinent cross check, rather than a time consuming recheck, to rapidly sort out potentially lethal hemolytic reactions versus the more common Febrile Non-hemolytic (FNH) reaction. The initial studies should be considered emergency procedures.

 

An immediate review of patient identification, blood unit labels and all pre-reaction records for possible errors in patient or blood identification at the bedside and in the laboratory needs to be performed. Visual examination of post-reaction and pre-reaction (if available) serum or plasma for evidence of hemolysis will be evaluated and ABO and direct antiglobulin testing on the post-reaction patient (recipient) blood sample will be performed.

 

If any of the initial studies are positive, the Pathologist will be contacted immediately and further investigation or an Extended Work Up (see section below) will need to be performed.

 

Following completion of the transfusion reaction workup, the completed investigation of the Transfusion Reaction form will be given to a pathologist for evaluation. They will complete the form regarding the interpretation and conclusion and will date and sign their comments. Results and comments will be entered into the LIS and the completed form will be sent to HIM to be scanned into the patient's medical record.

 

Note: ABO incompatibility can occur within the first 15 minutes of transfusion. TRALI and TACO may occur within 1 to 2 hours, and as long as up to 6 hours after the start of the transfusion.

 

Signs and Symptoms

Hemolytic Reaction

[Onset within 24 hours]

  • Fever (increase >2°F or 1°C above normal body temperature)
  • Respiratory distress, wheezing, coughing, dyspnea, cyanosis
  • Hyper or hypotension
  • Abdominal, chest, flank or back pain
  • Pain at infusion site
  • Skin manifestations, urticarial, rash, flushing, pruritus, localized edema
  • Jaundice hemoglobinuria
  • Nausea/vomiting
  • Abnormal bleeding
  • Oliguria/anuria
  • Change in patient status

 

Non-Hemolytic Reaction

[Onset 24 hours - 28 days]

  • Fever (increase >2°F or 1°C aboce normal body temperature)
  • Urticaria/Hives

 

Transfusion-Related Acute Lung Injury (TRALI)

[Onset within 6 hours]

  • Fever
  • Chills
  • Dyspnea
  • Cyanosis
  • Hypotension
  • New onset of bilateral pulmonary edema.
  • Tachycardia

 

Transfusion-Associated Circulatory Overload (TACO)

[Onset within 6 hours]

  • Respiratory distress/dyspnea/hypoxia
  • Hypertension
  • Tachycardia
  • Increased Pulmonary wedge pressure
  • Signs of CHF

Nursing Staff Procedures

  1. Stop the unit, keep the line open with saline.
  2. Do not disconnect blood tubing from blood bag, even though bag may be empty.
  3. Disconnect blood tubing at access site and sterility cap the blood tubing immediately.
  4. Attach slow drip IV saline.
  5. Maintain access site.
  6. Immediately, do a clerical check - to confirm data on wristband, blood tag, and chart copy are in exact agreement.
  7. Call blood bank to start the Lab post transfusion reaction process.
  8. Notify patient's physician to obtain patient symptom management orders.

Work up

  • Clerical Check
  • Perform hemolysis check, ABO/Rh and DAT testing on post-reaction specimen.

 

Hemolysis Check and DAT both Negative

  • Notify floor the unit can be restarted if the patient's physician requests that unit to be continued, and the unit is still within the four hour tranfusion time limit.

Hemolysis Check or DAT Positive

  • Continue with workup and notify a pathologist immediately. If the DAT is positive, a DAT will need to be performed on the pre transfusion specimen as well. 

Extended Work up

  • Antibody screen on pre/post specimens.
  • Repeat ABO/Rh and MTS crossmatch on pre-transfusion sample
  • Repeat ABO/Rh typing on unit along with a DAT

LOINC

93904-1 Transfusion reaction panel