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A concise overview of various cardiac arrhythmias, including their characteristics, actions, first-line drugs, and possible causes. It covers conditions such as sinus arrhythmia, bradycardia, tachycardia, atrial flutter, fibrillation, and ventricular tachycardia. It also includes information on av blocks, premature contractions, and pacemaker malfunctions. Structured as a quick reference guide, ideal for medical students, nurses, and healthcare professionals needing a rapid review of arrhythmia management. It offers practical insights into immediate actions and drug interventions for different arrhythmias, enhancing clinical preparedness and decision-making skills. This guide is particularly useful for exam preparation and clinical practice, providing essential knowledge in a clear and accessible format.
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Sinus Arrhythmia - ✔✔Sinus Arrhythmia Looks almost normal Action: none, continue to monitor First Drug: none Possible cause: respiratory deviation, peds, aging heart Sinus Bradycardia - ✔✔Action: oxygen, notify MD - if symptomatic, follow AHA guidelines. First Drug: Atropine if symptomatic - low BP Possible cause: vagal-stimulation, athlete, sleep, ischemia to SA node, Meds, ↑ ICP Sinus Tachycardia - ✔✔Action: Determine & Treat the cause - this is key First Drug: None, watch for drugs that may be the cause Possible causes: pain, fever, anxiety, exercise, hypoxia, caffeine, sympathetic stimulation. Premature Atrial Contraction - PAC's - ✔✔Action: no action needed; if new or frequent notify MD First Drug: None Possible causes: caffeine, fatigue, tobacco, alcohol, stress, atrial enlargement Atrial Flutter - ✔✔Action: If new, notify MD, O2 if dyspneic First Drug: Digoxin, beta blockers, amiodarone, Cardizem Possible causes: Atrial enlargement - CHF, HTN, edema post heart surgery, valve disease, hyperthyroidism Atrial Fibrillation - ✔✔Action: If new, notify MD; O2 if dyspneic First Drug: Digoxin, beta blockers, amiodarone, Cardizem
Possible causes: Atrial enlargement - CHF, HTN, edema post heart surgery, valve disease, hyperthyroidism Premature Junctional Contraction - PJC's - ✔✔Action: If frequent or new notify MD First Drug: None Possible causes: AV Node Irritability - caffeine, fatigue, tobacco, alcohol, stress, meds Junctional Rhythm - ✔✔Actions: If new notify MD, O2 if dyspneic,meds (if extreme Brady, Call RRT) FirstDrug: Atropine(0.5mg)ifsymptomatic-BP Possible causes: ischemia - SA node, SA node function due to meds - Digoxin tox. Accelerated Junctional - ✔✔Actions: If new notify MD, O2 if dyspneic, meds First Drug: none Possible causes: AV Node Irritability - caffeine, fatigue, tobacco, alcohol, stress, med toxicity - esp. Dig Toxicity (check potassium) Junctional Tachycardia - ✔✔Actions: If new notify MD, O2 if dyspneic, meds First Drug: none Possible causes: AV Node Irritability - caffeine, fatigue, tobacco, alcohol, stress, med toxicity - esp. Dig Toxicity (check potassium) SVT-Supraventricular Tachycardia - ✔✔Action: Vagal Maneuvers, O2, notify MD - Call RRT if symptomatic First Drug: Adenosine (6mg, 12mg, 12mg - Rapid IV push) Possible causes: stimulants, CHF, thyroid, med toxicity (Could be Sinus Tach; Atrial Tach; Atrial Flutter; or Junctional Tach - cannot determine!) 1st Degree AV Block - ✔✔Action: observe for further PR prolongation; meds; if new notify MD First Drug: None Possible causes: heart disease or meds
Ventricular Fibrillation- VF - ✔✔Action: Call a code, defibrillate - start CPR and follow ACLS pulseless arrest algorithm First Drug: After 2 shocks then drugs of choice: Epinephrine 1 mg* IV/IO, Amiodarone 300 mg* IV/IO, then any additional doses are 150 mg* IV/IO. Possible causes: K or Mg, hypoxia, ischemia, MI, med toxicity Idioventricular - ✔✔Action: Notify MD Stat (ICU/PACU Only) - With pulse M/S/Tele units call RRT, O2, set- up pacerNo Pulse- Call code and start CPR First Drug: None Pace the patient. Possible causes: MI, extreme drug toxicity Asystole - ✔✔Action: Call Code Blue; CPR; O2; set-up for pacing - verify in two leads First Drug: Epinephrine Possible causes: acute MI, conduction disturbance due to dying heart, extreme med toxicity Pacemaker - Failure to Capture - ✔✔Pacing Spikes occurring without QRS complex Action: O2; set-up for TCP pacing; notify MD, or call RRT for M/S/T unit. If new Pacer: Turn patient to Left side; notify MD If Temporary Pacer-Check battery; check connections; increase MA First Drug: usually none Possible causes: Electrolyte, metabolic abnormalities; medication toxicity; inadequate voltage (MA); battery failure; loose connections; lead fracture or dislodgement, Tissue inflammation or necrosis Pacemaker - Failure to Sense - ✔✔Pacing Spikes occurring near patient's intrinsic beat Action: O2; Notify MD for reprogramming If Temporary Pacer-Check battery; check connections; adjust sensitivity First Drug: usually none Possible causes: Incorrect sensing threshold; loose connections; lead fracture or dislodgement I have an IDEA on how to treat bradycardia - ✔✔I: Isoproteranol
D: Dopamine E: Epinephrine A: Atropine