Perfusion Patho Flashcards
Cardiac Output equation
CO = SV x HR
Stroke Volume (SV)
Amount of blood pumped from the heart
Ejection Fraction
% of blood leaving heart
What can effect Preload
Stretch the blood places on ventricles when max filled
What effects preload
venous return
After load
resistance against the heart
inverse of cardiac output (low afterload high cardiac output)
Frank - starling effect
more stretch more contractility
What can affect after load
arthrosclerosis - increase afterload
Perfusion in Pregnancy
heart enlarges
increased workload
Perfusion can effect the gut giving what symptoms
N/V
Why do people cough when lungs aren’t profused according to nursing school
pulmonary edemaw
modifiable risk factors for perfusion issues
Smoking (vasoconstriction)
HTN (increased afterload)
obesity (increased strain)
Physical inactivity
Diabetes (Leads to narrowing of vessels)
Non-modifiable risk factors of perfusion issues
sex
age
famiily hx
cardiac biomarkers
Creatine kinase
CK isoenzymes
Troponin T and Troponin 1
Lipid profile for perfusion is used for
a risk assessment
BNP brain (b-type) natriuretic peptide
monitor and help dx Heart failure
Homocysteine
endothelial damage in the lining of heart
Hypertension stages
Normal <120/80
Elevated BP 120-129/<80
Stage 1: 130-139/80-89
Stage 2: >140/>90
Primary hypertension
Primary is no other reason causing HTN
Secondary Hypertension
HTN that is caused by other disease
Hypertension is the most important modifiable risk factor for
coronary heart disease