BP= CO x PR
Formula for BP?
CO= SV x HR
Formula for CO?
stroke volume
-volume of blood pumped from the ventricle per beat.
70 mls
What is the normal Stroke Volume (SV)?
55%
What is the normal ejection fraction (EJ)?
2.6-4.2 L/min
What is the range for cardiac index? (CI)
CO / BSA
Formula for cardiac index? (CI)
f; inpatient
Cardiac Index is used more in the outpatient setting. T/F?
Cardiac Index
- the way to relate a person's CO to the size of the individual.
LVEF <= 40%
HFrEF =
previously LVEF < 40; now > 40%
HFimpEF =
LVEF 41-49%
HFmrEF =
LVEF >= 50 %
HFpEF=
Brain Natriuretic Peptide
-produced by myocytes when stretched;
promote diuresis, naturesis, and vasodilation
age & sex; increased in elderly & women
What can increase BNP?
renal impairment, exercise, obesity
What can decrease BNP? (3)
BNP < 100 ; NT-proBNP < 400
BNP & NT-proBNP levels?
anthracyclines, ethanol, amphetamines, zumabs
Cardiotoxic drugs? (3)
BB, antiarrhythmics, itraconazole, non-DHCPs
Negative Inotropic drugs? (4)