Tachycardia and Bradycardia Algorithms Flashcards
7 cards from real ACLS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Tachycardia and Bradycardia Algorithms flashcards as text
A patient has sinus bradycardia at 48 bpm but is awake, alert, with BP 118/76 and no symptoms. What is the correct ACLS management?
Answer: Observation — no treatment required
Asymptomatic bradycardia without hemodynamic compromise does not require intervention in the ACLS algorithm.
Which of the following is a Class III indication (harmful) for adenosine in tachycardia management?
Answer: Irregular wide-complex tachycardia consistent with pre-excited AF
Adenosine is potentially harmful in irregular wide-complex tachycardia (pre-excited AF/WPW) because it can precipitate ventricular fibrillation.
What synchronized cardioversion energy is recommended for unstable monomorphic VT in ACLS?
Answer: 100 J
Unstable monomorphic VT is cardioverted starting at 100 J with biphasic energy per ACLS guidelines.
A patient with narrow-complex tachycardia receives adenosine 6 mg without effect. What is the next step?
Answer: Administer adenosine 12 mg IV rapid push
If the initial 6 mg dose of adenosine fails, the next dose is 12 mg IV given as a rapid push, which may be repeated once.
Which of the following statements about transcutaneous pacing (TCP) is correct?
Answer: TCP should be used while awaiting transvenous pacing for unstable bradycardia
TCP is a temporizing measure for unstable bradycardia while definitive transvenous pacing is arranged.
In the ACLS tachycardia algorithm, which condition requires treatment regardless of symptoms due to inherent risk?
Answer: Ventricular tachycardia at 200 bpm even if stable
Ventricular tachycardia at high rates carries risk of deterioration to VF and warrants prompt treatment even in stable patients.
A provider is managing a patient with tachycardia and suspects the rhythm is AF with aberrant conduction vs. VT. The patient is stable. What is the safest pharmacological approach?
Answer: Procainamide, which is effective for both SVT with aberrancy and VT
Procainamide is effective for both SVT with aberrancy and VT, making it a safe choice when the diagnosis is uncertain in a stable patient.