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Anemia

Anemia

The anemia chronic condition and acute action are both validated below.

Chronic Anemia

Description

Chronic anemia with 30% reduction in hemoglobin content.

Table 1. Data request validation results for Segment 1.
Property Name Validation Engine Value Percent Error Percent Change Notes
Hemoglobin-BloodConcentration(g/dL) EqualTo 0.7 * Healthy Baseline (10.5) 10.5 -0.09%   Calculated from the Reduction Factor
Hematocrit EqualTo 0.7 * Healthy Baseline (0.325) [157] 0.325 -0.09%   Tracks Hb reduction
HeartRate(1/min) GreaterThan Healthy Baseline (72.0) [383] 71.9 -0.17%   Increase
CardiacOutput(L/min) GreaterThan Healthy Baseline (5.78) [96] 5.97   3.25% Slight Increase
HeartStrokeVolume(mL) GreaterThan Healthy Baseline (80.2) [96] 83.0   3.43% Slight Increase
RespirationRate(1/min) EqualTo Healthy Baseline (11.9) [383] 11.8 -1.18%   No Change
SystemicVascularResistance(mmHg_s/mL) LessThan Healthy Baseline (0.940) [157] 0.906   -3.63% Decrease
OxygenSaturation EqualTo 0.945 [96] 0.974 3.10%    
Lactate-BloodConcentration(g/dL) EqualTo Healthy Baseline (0.0150) [414] 0.0155 3.34%   Normal for compensated anemia

Acute Anemia

Description

Acute anemia with increasing severities from mild to moderate to severe.

Mild anemia (total reduction factor = 0.15).

Table 2. Data request validation results for Segment 1.
Property Name Validation Engine Value Percent Error Percent Change Notes
Hemoglobin-BloodConcentration(g/dL) EqualTo 0.85 * Healthy Baseline (12.7) 12.7 -0.44%   Calculated from the Reduction Factor
Hematocrit EqualTo 0.85 * Healthy Baseline (0.395) [157] 0.393 -0.44%   Tracks Hb reduction
HeartRate(1/min) EqualTo 1.10 * Healthy Baseline (79.3) [414] 71.6 -9.65%   Increase with anemia (compensatory)
CardiacOutput(L/min) EqualTo 1.15 * Healthy Baseline (6.65) [414] 5.87 -11.74%   Rise with decreased SVR
HeartStrokeVolume(mL) GreaterThanEqualTo Healthy Baseline (80.2) [414] 81.9   2.13% Unchanged to slightly increased
RespirationRate(1/min) EqualTo Healthy Baseline (11.9) [157] 11.9 -0.40%   Minimal change
SystemicVascularResistance(mmHg_s/mL) EqualTo 0.90 * Healthy Baseline (0.846) [157] 0.926 9.47%   Falls with reduced viscosity/vasodilation
OxygenSaturation EqualTo Healthy Baseline (0.976) [414] 0.975 -0.06%   SpO2 near-normal
Lactate-BloodConcentration(g/dL) EqualTo Healthy Baseline (0.0150) [414] 0.0158 5.60%   Normal for compensated anemia

Moderate anemia (total reduction factor = 0.35).

Table 3. Data request validation results for Segment 2.
Property Name Validation Engine Value Percent Error Percent Change Notes
Hemoglobin-BloodConcentration(g/dL) EqualTo 0.65 * Healthy Baseline (9.73) 9.60 -1.35%   Calculated from the Reduction Factor
Hematocrit EqualTo 0.65 * Healthy Baseline (0.302) [157] 0.298 -1.35%   Tracks Hb reduction
HeartRate(1/min) EqualTo 1.25 * Healthy Baseline (90.1) [414] 71.7 -20.38%   Tachycardia intensifies
CardiacOutput(L/min) EqualTo 1.35 * Healthy Baseline (7.80) [414] 6.05 -22.47%   CO increases further
HeartStrokeVolume(mL) GreaterThanEqualTo Healthy Baseline (80.2) [414] 84.4   5.16% Unchanged to slightly increased
RespirationRate(1/min) EqualTo 1.05 * Healthy Baseline (12.5) [157] 11.7 -6.61%   Small rise possible
SystemicVascularResistance(mmHg_s/mL) EqualTo 0.80 * Healthy Baseline (0.752) [157] 0.898 19.40%   Further fall in SVR
OxygenSaturation EqualTo Healthy Baseline (0.976) [414] 0.974 -0.16%   SpO2 near-normal
Lactate-BloodConcentration(g/dL) EqualTo Healthy Baseline (0.0150) [414] 0.0171 14.22%   Normal for compensated anemia

Severe anemia (total reduction factor = 0.5).

Table 4. Data request validation results for Segment 3.
Property Name Validation Engine Value Percent Error Percent Change Notes
Hemoglobin-BloodConcentration(g/dL) EqualTo 0.50 * Healthy Baseline (7.48) 7.40 -1.09%   Calculated from the Reduction Factor
Hematocrit EqualTo 0.50 * Healthy Baseline (0.232) [157] 0.230 -1.09%   Tracks Hb reduction
HeartRate(1/min) EqualTo 1.35 * Healthy Baseline (97.3) [414] 72.4 -25.53%   Marked tachycardia
CardiacOutput(L/min) EqualTo 1.50 * Healthy Baseline (8.67) [414] 6.15 -29.07%   High-output state
HeartStrokeVolume(mL) GreaterThanEqualTo Healthy Baseline (80.2) [414] 84.9   5.82% Unchanged to slightly increased
RespirationRate(1/min) EqualTo 1.10 * Healthy Baseline (13.1) [157] 11.5 -12.23%   Augmented ventilatory drive
SystemicVascularResistance(mmHg_s/mL) EqualTo 0.70 * Healthy Baseline (0.658) [157] 0.891 35.43%   Pronounced fall in SVR
OxygenSaturation EqualTo Healthy Baseline (0.976) [414] 0.973 -0.26%   SpO2 near-normal
Lactate-BloodConcentration(g/dL) EqualTo Healthy Baseline (0.0150) [414] 0.0190 26.68%   Normal for compensated anemia


Figure 1. Select outputs from the acute anemia scenario.


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