Cardiology Flashcards
Contraindications of Fibrinolysis
Systolic > 120-180 mmHg
Diastolic > 100-110 mmHg
Right vs Left arm BP difference > 15 mmHg
Stroke
Sign. Head trauma within 3 mo.
Major trauma within 2-4 weeks
Blood thinners/ blood condition
Serious systemic disease
Prego.
History of ICH
inotropic
force of contraction
chronotropic
rate
dromotropic
electrical impulse conduction
starlings law
rubber band theory of increasing the hearts ability to stretch and contract by adding fluids
4 properties of cardiac cells
Excitability
Contractility
Conductivity
Rhythmicity
Excitability
Ability to respond to electricity
Conductivity
Ability to pass on electricity
Rhythmicity
Ability to generate electricity spontaneously and rhythmically
Do alpha receptors constrict or dilate
Constrict
Do beta receptors restrict or dilate
Dilate
Normal PR interval length
0.12-0.2
Normal QRS length
0.12 or less
Regular rhythm
R to R lengths are consistent
Rhythms- Irregularly irregular vs regularly irregular
Irregularly irregular- unequal R to R distances with no pattern
Regularly irregular- unequal R to R distance with pattern
P waves- what 3 things do you check for?
Are they present?
Is there 1 P wave for every QRS (and is there one QRS for every P wave)?
Is the morphology consistent?
What’s 2 PVCs in a row called
Couplet