Spacelabs 91390, Operation Manual, Page: 105 / 156

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X P R E Z Z O N
A N D Q U B E
O
P E R A T I O N S
M
A N U A L
C
A L C U L A T I O N S
Input Values for Hemodynamic Calculations
The following table shows the input values that are available for hemodynamic
calculations.
Output Values for Hemodynamic Calculations
The following table shows the output values that are available for hemodynamic
calculations.
Label Name Units Valid Range
HR Heart Rate bpm 0 to 300
MAP Mean Arterial Pressure mmHg –50 to 300
kPa 6.7 to 40
CVP Central Venous Pressure mmHg –50 to 99
kPa –6.7 to 15
PA
(Mean) Mean Pulmonary Artery Pressure mmHg –50 to 99
kPa –6.7 to 15
PCWP Pulmonary Capillary Wedge Pressure mmHg –50 to 99
kPa –6.7 to 15
CO Cardiac Output L/min 0 to 40
HT Height cm 20 to 215
inches 7.9 to 84.6
WT Weight kg 0.2 to 250.0
lbs 0.441 to 551.156
Variable (Label) Equations Units Normal Range
BSA Ht
0.725
× Wt
0.425
× 0.007184 m
2
0.03 to 3.69
Cardiac Index (CI) CO/BSA L/min/m
2
2.5 to 4
Stroke Volume (SV) (CO/HR) × 1000 mL/beat 60 to 130
Stroke Volume Index (SVI) SV/BSA mL/beat/m
2
30 to 65
Systemic Vascular Resistance
(SVR) 79.9 × [(MAP – CVP)/CO] dynes × sec/cm
5
900 to 1400
Systemic Vascular Resistance
Index (SVRI) 79.9 × [(MAP – CVP)/CI] (dynes × sec/cm
5
) ×
m
2
1760 to 2600
79.9 × [(MAP – CVP)]/[CO/BSA]
79.9 × [(MAP – CVP)]/[CO × 1/BSA]
79.9 × [(MAP – CVP)/CO] × BSA
SVR × BSA
Pulmonary Vascular Resistance
(PVR) 79.9 × [(MPA – PCWP)/CO] dynes × sec/cm
5
20 to 130