Cardiac Lecture 1 Flashcards
Normal MAP for this class
100mmHg (93 more accurate)
Normal MAP calculation
MAP= Diastolic + 1/3 x (Sys - Dia)
Normal RA pressure
0 mmHg
Normal PA pressure (mPAP)
16 mmHg
Normal PA systolic pressure
25mmHg
Normal PA diastolic pressure
8mmHg
Normal LA pressure
2 mmHg
Compliance
ability to stretch
change in volume over change in pressure
Δ V / Δ P
If a high pressure is needed to pump a volume into a space, the compliance of that space would be ______
low
If a low pressure is needed to pump a volume into a space, the compliance of that space would be ______
high
Normal CO for this class
5 L/min
Normal HR for this class
72bpm
Normal stroke volume for this class
70mL
gravity’s effect on BP
13.6mm = +1 mmHg
Reference point for BP with 0 effects of gravity
Isogravimetric point
Where is the isogravimetric point located
In the tricuspid valve
Venous system is a ______ compliance system
high
Arterial system is a _______ compliance system
low
Adding volume, but having little effect on pressure means the system is _____ compliance
high
Adding volume and having large effect on pressure means the system is _____ compliance
low
A ________ system readily accepts volume
high compliance
Free water clearance (CH2O)
volume of water removed from body/time
Relationship between free water clearance and ADH
Inverse
- More ADH → low free water clearance
- Low ADH → high free water clearance
Pulmonary circuit ΔP
PAP - LAP → 14 mmHg