| A | B |
|---|
| 1st degree AV block | p wave greater than 0.2 |
| 2nd degree AV block | pr interval progressively longer until qrs is dropped |
| tx for 2nd degree AV block | temp pacemaker |
| 3rd degree AV block | p waves not related at all to QRS and QRS is wide |
| pvc's, v tach causes | infarction, K/MG depletion, injury/ischemia |
| v tach causes | MI, chf, damage, CAD |
| v tach rate | 100-250 |
| v tach on ekg looks like | regular tombstones |
| QRS width in vtach | >.12 |
| v fib 1 | no discernible p, QRS t waves |
| v fib 2 | chaotic pattern |
| tx for v fib | cpr, defibrillation |
| asystole | flat line |
| pulseless electrical activity | hypoxia, hypothermia, K probs, od, tamponade, trauma (H&T"S) |
| epinephrine 1 | increases bp, inc electral activity, inc myocardial activity |
| epinephrine 2 | peripheral vasoconstrictor, alpha & beta adrenergic action |
| dose of epi | 1 mg. IVP q 3-5 min. for vfib, vtach, PEA, asystole |
| vasopressin | potent peripheral vasoconstrictor |
| dose of vasopression | 40 unit one time push |
| most popular antiarrhythmic | amiodarone |
| amiodarone | decreases automaticity |
| adv. reactions for amiodarone | hypotension |
| dose of amiodarone push | 300 mg for pulseless; 150 mg for vtach |
| dose of amiodarone drip | 1 mg/min., then 0.5 mg. / min |
| lidocaine 1 | decreases automaticity and has local anesthetic affects |
| lidocaine 2 | helps prevent ventruicular arrhythmias; may be doc or after amiodaroine |
| dose of lidocaine | 1 - 15 mg/jkg q 3-5 min. |
| side effects lidocane | levels of consciousness, seizures, muscle twitching, paresthesias |
| adjustments of lidocaine | decrease dose by 50% in elderly & liver dz |
| torsades de pointes tx | Magnesium |
| VF after MI couold be a result of | low mg |
| defib rates | 360 j monophasic; 200 j biphasic |
| sequence of meds in a code | epi/vasopressin then lidocaine/amiodarone |
| adenosine 1 | slows conduction through av node |
| adenosine 2 | used for PSVT |
| adenosine dose | bolus 6 mg |
| calcium channel blockers | decrease AV node conduction and refractorness |
| uses of calcium channel blockers | afib & svt |
| don't use calcium channel blockers | pulseless or fast vtach |
| atropine | parasympatholitic |
| uses of atropine | symptomatic brady, 1 & 2nd degree AV blocks |
| morphine | narcotic analgesic decreases preload |
| morphine side effects | resp depression, hypotension |
| calcium chloride effects | increase force of cardic contractions |
| calc chloride uses | hyperkalemia, low calcim, ca channel toxicity |
| calcium chloride dosage | 8-16 mg/kg 10% solution |
| calcium chloride: don't give with | not with bicarb precipittes |
| cautions calcium chloride | dig patients, don't give rapidly |
| beta blockers effects on cv system | dec heart heart contractility, dec HR & BP |
| beta blockers don't give in pts w/ | asthma |
| uses of b blockers | controls recurrent vf, vtach, and svt after MI |
