41 - 45 SBAs for the Final FRCA
Question 41
Which of the following normal values is correct?
- Left ventricular pressure - 110/15 mmHg
- Mean right atrial pressure - 12 mmHg
- Systemic vascular resistance - 800-1200 dyne.s/cm⁵
- Pulmonary vascular resistance - 10-20 dyne.s/cm⁵
- Transpulmonary gradient - 16 mmHg
Answer
- Systemic vascular resistance - 800-1200 dyne.s/cm⁵
LV pressure should be 140/12 mmHg, while mean right atrial pressure should be around 6mmHg.
Pulmonary vascular resistance is normally around 100dyne.s/cm⁵ and the transpulmonary gradient sits at around 6mmHg in normal patients.