The document outlines calculations for right heart catheterization, including parameters such as age, height, weight, and various pressures and oxygen consumption values. It details formulas for calculating cardiac output, systemic and pulmonary vascular resistance, and shunt calculations. Key factors include oxygen saturation levels and methods for determining values influenced by pulmonary diseases.

1. CALCULATION FOR RIGHT HEART CATHETERIZATION
Name: Age:
Height: Weight:
BSA:
…….𝐻𝑡 ( 𝑐𝑚)+ ………𝑊𝑡 ( 𝑘𝑔)−60
100
=
Hb%: HR:
Oxymetry run: Pressure:
Location Saturation (%)
SVC High
Mid
Low
RA High
Mid
Low
RV RVOT
Mid
MPA
LPA
RPA
IVC
LV
O2 consumption = 125 ml/min /m2 BSA
O2 content = …..satof O2 x ……Hb (g/dl) x 1.36 x 10 (ml/L)
Location Pressure
(mmHg)
Mean
Pressure
RA Sys
Dia
RV Sys
Dia
PCWP
LA Sys
Dia
LV Sys
Dia
Aorta Sys
Dia

2. 𝑄𝑝 =
𝑂2 𝑐𝑜𝑛𝑠𝑢𝑚𝑝𝑡𝑖𝑜𝑛 (
𝑚𝑙
𝑚𝑖𝑛
)
𝑃𝑉𝑂2 𝑐𝑜𝑛𝑡𝑒𝑛𝑡 (𝑚𝑙/min) − PAO2 content ( 𝑚𝑙/min)
𝑄𝑠 =
𝑂2 𝑐𝑜𝑛𝑠𝑢𝑚𝑝𝑡𝑖𝑜𝑛 (
𝑚𝑙
𝑚𝑖𝑛
)
𝑆𝐴𝑂2 𝑐𝑜𝑛𝑡𝑒𝑛𝑡 (𝑚𝑙/min) − MVO2 content ( 𝑚𝑙/min)
SAO2 is assumed from hand oxymetry if it is more than 95%. If there is evidence of right to
shunt it is assumed to be 98%. In case of pulmonary disease O2 saturation from hand
oxymetry is the value to be held.
𝑀𝑉𝑂2 =
3 𝑆𝑉𝐶 𝑂2 + 1 𝐼𝑉𝐶 𝑂2
4
𝑆𝑉𝑅( 𝑤𝑜𝑜𝑑 𝑢𝑛𝑖𝑡) =
𝑀𝑒𝑎𝑛 𝐴𝑟𝑡𝑒𝑟𝑖𝑎𝑙 𝑃𝑟𝑒𝑠𝑠𝑢𝑟𝑒− 𝐶𝑉𝑃
𝐶𝑎𝑟𝑑𝑖𝑎𝑐 𝑜𝑢𝑡𝑝𝑢𝑡
𝑃𝑉𝑅 ( 𝑊𝑜𝑜𝑑 𝑢𝑛𝑖𝑡) =
𝑀𝑒𝑎𝑛 𝑃𝐴 𝑝𝑟𝑒𝑠𝑠𝑢𝑟𝑒− 𝑀𝑒𝑎𝑛 𝑃𝐶𝑊𝑃
𝐶𝑎𝑟𝑑𝑖𝑎𝑐 𝑜𝑢𝑡𝑝𝑢𝑡
Cardiac Output (CO) = SV x HR or
Fick Equation (l/min) =
𝑂2 𝑐𝑜𝑛𝑠𝑢𝑚𝑝𝑡𝑖𝑜𝑛 (
𝑚𝑙
𝑚𝑖𝑛
)
1.36 𝑥….𝐻𝑏 (
𝑔
𝑑𝑙
) 𝑥 10 (𝑆𝐴𝑂2−𝑆𝑉𝑂2)
Simple formula for shunt calculation
Qp / QS = SAO2 – SVO2 / PVO2 – PAO2
For bidirectional shunt
Qeff =
𝑂2 𝑐𝑜𝑛𝑠𝑢𝑚𝑝𝑡𝑖𝑜𝑛
𝑃𝑉𝑂2 𝑐𝑜𝑛𝑡𝑒𝑛𝑡−𝑀𝑉𝑂2 𝑐𝑜𝑛𝑡𝑒𝑛𝑡