CORRECT ANSWERS VERIFIED ALREADY GRADED A.

ACLS AHA

CORRECT ANSWERS VERIFIED ALREADY GRADED A+.

✅A responder is caring for a patient with a *h/o CHF*.The patient is experiencing *SOB*, a *BP of 68/50 mmHg*, and *HR of 190/min*.The patient lead II ECG displays the rhythm in the picture.

Which best characterizes this patient's rhythm? Answer: Unstable SVT

✅*Amiodarone* Answer: An *antiarrhythmic drug* used with refractory *V-FIB* or

*pulseless VT*:

• Prevents the heart from speeding; • It effects Na+, K+ and Ca+ channels and α and β blockers; • Lowers defibrillation threshold;

✅• Rate > 100 bpm with gradual onset • P to QRS ratio 1:1 Answer: Tachycardia

✅Which structure accounts for most of the duration of the PR interval? Answer: AV node

✅Possible causes for stroke Answer: 1) Diabetes;

2) HTN;

3) Hypercholesterolemia; 4) Family History;

✅*V-tach* on the ECG Answer: P=∅;

HR = V only >100 Reg.; *QRS = wide*; 1 / 3

✅A patient is in *refractory V-fib*.High-quality CPR is in progress.

• dose of epinephrine was given after the 2nd shock.

An antiarrhythmic drug (amiodarone or lidocaine) was given immediately after the 3rd shock.You are the team leader.

Which medication do you order next? Answer: *Epinephrine 1 mg*

✅3 minutes into a cardiac resuscitation attempt, one member of your team inserts an endothracheal tube while another performs chest compression. Capnography shows a persistent waveform and a *PETCO2 of 8mm Hg*.Which is significance of this finding? Answer: Chest compression may not be effective.

✅Which temperature should be selected and maintained constant to achieve *targeted

temperature management after cardiac arrest*? Answer: *32°* C - *36°* C

✅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.Which action do you take next? Answer: Perform *Synchronized Cardioversion* at 100J

✅*2nd degree AV block type I* on the ECG Answer: P↑ > QRS;

HR = A. reg. V. irr.; *PR = long, longer, longer...drop!*; QRS = narrow;

✅To proper ventilate a patient with a perfusing rhythm, how often do you squeeze the

bag? Answer: Once every 5-6 seconds

✅Vasopressin IV/IO dose of ______ units can replace the first or second dose of epineprhine;

Answer: 40 2 / 3

✅Your rescue team arrives to find a 59-year-old man lying on the kitchen floor.You determine that he is *unresponsive*.Which is the next step in your assessment of this patient? Answer: Check the patient's breathing and pulse

✅*SVT* on the ECG Answer: (Impulse generated above the ventricles)

P = hidden in QRS; HR = 150-250 reg.; QRS = narrow;

✅SR with *1st degree AV block* on the ECG Answer: P = ↑1:1; HR = reg. 60-100; PR = *wide > .20*; QRS = narrow;

✅*Sinus Tachycardia* on the ECG Answer: P = ↑1:1; *HR > 100* (even higher than 200); QRS = narrow;

✅A 35-year-old woman presents with a chief complaint of *palpitations*. She has no chest discomfort, shortness of breath, or light-headedness.Her bloody pressure is 120/78 mm Hg.

Which intervention is indicated first? Answer: Vagal maneuvers

✅A 45-years-old man had *coronary artery stents* placed 2 days ago.Today, he is in severe distress and reporting "crushing" chest discomfort. He is pale, diaphoretic, and cool to the touch (*unstable*).His radial pulse is very weak, BP is *64/40 mmHG*, respiratory rate is *28 breaths/min* (hyperventilation), and oxygen saturation is *89%* on room air.

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