Cardiac Flashcards
what is the difference between negative and positive inotropic meds
- negative = cardiac depressant, relax the heart
- positive = cardiac stimulants
calcium channel blockers are which type of med?
- negative inotropic meds
ca channel blockers are used for?
Antihypertensives
Anti-Anginals
Anti Atrial Arrythmia (any arrythmia that says atrial, NOT ventricular, ex. afib, atrial flutter, etc. with the exception of supraventricular tachy (bc supraventricular means atria)
(think A, AA, AAA)
DO NOT USE IF HAS CHF
what are 2 side effects of ca channel blockers
- headache
- hypotension
ca channel blockers end in…
- dipine
what are 2 ca channel blockers that don’t end in ___dipine
- verapamil
- cardizem (diltiazem)
which ca channel blocker can be given IV drip?
- cardizem (diltiazem)
what should be monitored with continuous IV cardizem
- BP before
- BP during
what BP parameters are used with cardizem/diltiazem
hold if systolic <100, titrate so >100
4 cardiac arrythmias to know by sight:
- NSR
- v fib
- v tach
- asystole
NSR looks like…
- peaks of P wave equal distance from each other
- P for every QRS
v fib looks like..
- chaotic squiggly line
if a question says “lack of QRS”, what arrythmia do you assume it is?
- asystole
if a question says “QRS polarization” assume it has to do with…
- ventricular
if a question says “P wave”, assume it has to do with…
- atrial
if a question says “sawtooth” P wave, assume it is…
- atrial flutter
if a question says “chaotic”, assume it means
fibrillation
if a question says “chaotic QRS”, assume it is…
- ventricular fibrillation
if a question says “chaotic P wave”, assume it is..
- atrial fibrillation
if a question says “bizarre”, assume it is?
- tachycardia
ex. “bizarre QRS” = ventricular tachycardia
if a question says “periodic” wide bizarre QRS, what do you assume it is
- PVC
describe the prioritiy if your pt has PVCs
- low
what would make the priority of a pt with PVCs moderate? (3)
1) >6 PVCs in 1 min
2) >6 PVCs in a row
3) PVC falls on T wave of previous beat
what are 2 lethal arrythmias
- asystole
- v-fib