Shared Flashcard Set

Details

Exam 1 - Cardiac Review
Exam 1 - Cardiac Review
33
Health Care
Graduate
02/17/2013

Additional Health Care Flashcards

 


 

Cards

Term
Aorta: Mean O2 tension
Definition
95 mmHg
Term
Arterioles: Mean O2 tension
Definition
70-80 mmHg
Term
Capillaries: Mean O2 tension
Definition
50 mmHg
Term
Starling effect =
Definition
↑ in volume of returned blood stretches mm fibers >> ↑ force of contraction
Term
Preload =
Definition
fiber length of myocardium a ejection
Term
Afterload =
Definition
resistance to ejection of blood (TPR; total peripheral resistance)
Term
Normal blood volume =
Definition
5000 mL
Term
Hct =
Definition
proportion of RBCs in plasma
Term
Hgb =
Definition
protein in RBC
Term
equation: BP =
Definition
BP = CO x PR
Term
normal SBP: infant
Definition
60-90
Term
normal DBP: infant
Definition
30-55
Term
normal SBP: child
Definition
90-110
Term
normal DBP: child
Definition
50-70
Term
structures contained within mediastinum (4)
Definition
esophagus, trachea, great vessels, pericardium
Term
L coronary a. splits into…
Definition
ant descnding a,
L circumflex a
Term
PNS innervation of heart:
Definition
vagus n (CN X)
Term
SNS innervation of heart:
Definition
upper thoracic n
Term
SA node: location
Definition
post wall of atrium
Term
3 layers of vessel wall
Definition
intima, media, adventitia
Term
Receptor types instrumental in cardiac relexes
Definition
baroreceptrs,
mechanoreceptors,
chemoreceptors
Term
Formula for max HR
Definition
208 - 0.7 • age
Term
MET =
Definition
metabolic equivalent of tasks (1 MET = person @ rest)
Term
Heart begins development on gestation day…
Definition
day 19
Term
Heart begins beating on gestation day…
Definition
day 22
Term
Heart circulates blood on gestation day…
Definition
day 24
Term
Internodal tracts (from SA to AV node) (3)
Definition
middle tract of Wenckebach,
ant trat of Bachmann,
post tract of Thorel
Term
Conduction pathway responsible for taking impulse through fibrous skeleton
Definition
Bundle of His
Term
Atrial kick =
Definition
extra filling of ventricle by contraction of atria
Term
Factors influencing stroke volume (5)
Definition
myocardial mm length, neural stimulation, meds, hormones, disease
Term
Lifespan of RBC
Definition
120 days
Term
Symptoms of PE
Definition
chest pain, dyspnea, diaphoresis, cough, apprehension
Term
Bainbridge reflex =
Definition
atrium stretched c normal HR >> ↑ HR;
atrium stretched c fast HR >> ↓ HR
Supporting users have an ad free experience!