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Pediatric Blood Volume

Stable 6-month-old with symptomatic anemia

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Evidence-based calculations Used in clinical settings worldwide Regular monitoring recommended

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Why: This calculation helps assess important health parameters for clinical and personal wellness tracking.

How: Enter your values above and the calculator will apply validated formulas to compute your results.

Evidence-based calculationsUsed in clinical settings worldwide
Sources:Medical LiteratureWHO Guidelines

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Understanding Pediatric Blood VolumeUse the calculator below to check your health metrics

Sample Clinical Scenarios

Anemic Infant - Elective TransfusionStable 6-month-old with symptomatic anemia
Pre-Surgical Child5-year-old scheduled for major surgery with low hemoglobin
Trauma - Active Bleeding14-year-old with traumatic hemorrhage requiring urgent transfusion
Oncology Patient - Chronic Anemia8-year-old with chemotherapy-induced anemia
Premature Newborn - NICUPreterm infant (32 weeks) requiring transfusion in NICU

Patient Information

Hemoglobin Values

Clinical Context

Transfusion History

What is Pediatric Blood Transfusion?

Transfusion BasicsBlood transfusion in pediatrics involves carefully calculated volumes based on the child's weight and blood volume, which varies significantly by age. Unlike adults where standard unit volumes are used, pediatric transfusions are precisely dosed in mL/kg.The standard pediatric PRBC dose is 10-15 mL/kg, which typically raises hemoglobin by 2-3 g/dL. Smaller volumes may be used in chronically anemic patients to prevent volume overload.
Blood Volume by Age
Premature infant100 mL/kg
Term newborn85 mL/kg
Infant (3-12 mo)75 mL/kg
Child (1-12 yr)75-80 mL/kg
Adolescent70-75 mL/kg

Transfusion Thresholds

Restrictive vs. Liberal StrategyCurrent evidence supports a restrictive transfusion strategy in most stable pediatric patients. The TRIPICU trial and subsequent studies have shown that a hemoglobin threshold of 7 g/dL is safe for most critically ill children.
Clinical ScenarioThreshold (g/dL)
Stable pediatric patient7.0
Critical illness (stable)7.0
Cardiac disease8.0-9.0
Active hemorrhage8.0
Major surgery8.0

Blood Product Selection

Packed Red Blood Cells (PRBC)Hematocrit: 55%Volume: ~250 mL/unitShelf Life: 42 daysStorage: 1-6°C
Whole BloodHematocrit: 40%Volume: ~450 mL/unitShelf Life: 35 daysStorage: 1-6°C
Leukoreduced PRBCHematocrit: 55%Volume: ~250 mL/unitShelf Life: 42 daysStorage: 1-6°C
Irradiated PRBCHematocrit: 55%Volume: ~250 mL/unitShelf Life: 28 daysStorage: 1-6°C
Washed PRBCHematocrit: 75%Volume: ~180 mL/unitShelf Life: 1 daysStorage: 1-6°C

Transfusion Reactions

Acute Reactions
  • Acute Hemolytic: Fever, chills, hypotension, hemoglobinuria - STOP IMMEDIATELY
  • Allergic: Urticaria, pruritus - may slow/stop transfusion
  • Anaphylactic: Bronchospasm, hypotension - STOP, treat emergently
  • TRALI: Respiratory distress within 6 hours - supportive care
  • TACO: Volume overload - diuretics, slow rate
    • Delayed Reactions
  • Delayed Hemolytic: 3-14 days post, falling Hgb, jaundice
  • Alloimmunization: Development of antibodies
  • Iron Overload: With chronic transfusions
  • Transfusion-transmitted Infections: Rare with screening
  • TA-GVHD: In immunocompromised (prevent with irradiation)

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    Clinical Disclaimer: This calculator provides estimates for educational purposes. Actual transfusion decisions should be made by qualified healthcare providers considering the complete clinical picture. Always follow institutional blood bank protocols and verify calculations independently. Transfusion reactions require immediate attention and standard emergency protocols.

    For educational and informational purposes only. Verify with a qualified professional.

    🏥 Health Facts

    — WHO

    — CDC

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