ACLS AHA Practice Exam Questions And Correct Answer

ACLS AHA Practice Exam Questions And Correct Answer *Transcutaneous Pacing* - ANSWER -Aka external pacing: is a temporary means of pacing a patient's heart during a medical emergency. It is accomplished by *gradually delivering pulses* of electric current (*50-100 mA*) through the patient's chest until capture is reached (usually at a selected rate of 70), which stimulates the *heart to contract* at a regular pace. Which intervention is most appropriate for the treatment of a patient in *asystole*? - ANSWER -*Epinephrine* A patient with sinus *bradycardia* and a heart rate of 42/min is diaphoretic and with a blood pressure of 80/60 mm Hg. What is the *initial dose of atropine*? - ANSWER -*0.5 mg* of *Atropine* A patient has sinus *bradycardia* with a heart rate of 36/min. *Atropine* has been administered to a total dose of 3 mg. A *transcutaneous pacing* has failed to capture. The patient is confused, and her BP is *88/56 mmHg*. Which therapy is now indicated? - ANSWER -*Epinephrine infusion: 2-10 mcg/min*. A monitored patient in the ICU developed a sudden onset of *regular narrow complex tachycardia* at a rate of 220/min. The patient's BP is 128/88 mm Hg, the PETCO2 is 38 mm Hg, and the pulse oximetry reading is 98%. There is a vascular (IV) access in the left arm, and the patient has not been given any basic active drugs. A 12-lead ECG confirms *SVT* with no evidence of ischemia or infrac SVT types - ANSWER -1) Atrial fibrillation (A-fib); 2) Paroxysmal Supraventricular Tachycardia (PSVT): 3) Atrial Flutter (A-flutter); 4) Wolff-Parkinson-White syndrome; The patient is in *cardiac arrest*. High-quality chest compressions are being given. The patient is intubated, and an IV is being started. The rhythm is *asystole*. What is the first drug/dose to administer? - ANSWER -*Epinephrine 1 mg IV/IO* The HR has not responded to vagal maneuvers. What is your next action? - ANSWER -Administer *adenosine 6 mg* IV push A patient with possible STEMI has ongoing chest discomfort. What is a *contraindication to nitrate* administration? - ANSWER -Use of a *phosphodiesterase inhibitors* (eg. Viagra) within the previous 24 hours A patient is in *pulseless V-tach* (PEA). 2 shocks and 1 dose of epinephrine have been given. Which drug should be given next? - ANSWER -*Amiodarone 300 mg* (first dose) What is the indication for the use of *magnesium* in cardiac arrest? - ANSWER Pulseless V-tach associated with *Torsades des pointes* Which is one way to minimize interruptions in chest compressions during CPR? - ANSWER -Continue CPR while the defibrillator charges A 35-years-old woman has palpitations, light-headedness, and a stable *tachycardia*. The monitor shows a *regular-narrow-monomorphic-complex QRS* at a rate of 180/minutes. Vagal maneuvers have not been effective in terminating the rhythm. An IV has been established. Which drug should be administered? - ANSWER -*Adenosine 6 mg* (first dose) Antiarrhythmic *Infusion* for Stable Wide-QRS Tachycardia: - ANSWER -1) Procainamide IV: 20 (max 50) mg/min; 2) Amiodarone IV: 150mg/10 min.; 3) Sotalol IV: 100 mg/5 min.; A 57-years-old woman has palpitations, chest discomfort, and *tachycardia*. The monitor shows a *regular wide-complex QRS* at a rate of 180/min. She becomes diaphoretic, and her BP is 80/60 mm Hg. A patient has a rapid *irregular wide-complex tachycardia*; The ventricular rate is 138/min.; It is asymptomatic, with a BP of 110/70 mmHG; He has a h/o angina; What action is recommended next? - ANSWER -a) Giving Adenosine: 6 mg IV bolus; b) Giving Lidocaine: 1.5 mg IV bolus; c) Performing synchronized cardioversion; d) *Seeking expert consultation *; What tests should be performed for a patient with a suspected stroke within 2 hours of arrival? - ANSWER -non contrast CT scan of the head Which action do you take next? - ANSWER -Perform *Synchronized Cardioversion* at 100J