ACLS Pre Test w/ Answers & Explanations

1. Arrange the BLS Chain of Survival in the proper order:*

Look, listen, and feel
Check responsiveness, call EMS and get AED, defibrillation, and circulation
Check responsiveness, call EMS and get AED, chest compressions, and early defibrillation
Call for help, shock, check pulse, shock, and transport

2. A known alcoholic collapses and is found to be in torsades de pointes. What intervention is most likely to correct the underlying problem?*

Rewarm the individual to correct hypothermia.
Administer magnesium sulfate 1 to 2 gm IV diluted in 10 mL D5W to correct low magnesium.
Administer glucose to correct hypoglycemia.
Administer naloxone to correct narcotic overdose.

3. Choose the correct sequence of electrical activity in the heart for normal sinus rhythm?*

AV node, SA node, Bundle of Hers, Purkinje fibers
SA node, AV node, Bundle of His, Purkinje fibers
Purkinje, Bundle of His, AV node, SA node
SA node, Purkinje, AV node, Bundle of His

4. You are transporting an individual who goes into cardiac arrest during transport. IV access is unsuccessful. What is the next step?*

Terminate resuscitation.
Obtain intraosseous access.
Place a central line.
Administer all medications through ET tube.

5. What does the QRS complex on an ECG represent?*

Ventricular contraction
AV valve closure
Atrial contraction
Septum relaxation

6. A 79-year-old individual is in SVT. BP is 80/50, and he is complaining of chest discomfort and feels like passing out. What is the next appropriate step?*

Carotid massage
Synchronized cardioversion
Amiodarone
Lidocaine

7. The following medication(s) can be used to treat hypotension during the post-cardiac arrest phase:*

Dopamine
Milrinone
Amiodarone
Both A and B

8. A 55-year-old male has stroke symptoms, and the CT scan shows multilobar infarction (more than one third of the cerebral hemisphere). What therapy is contraindicated?*

Oxygen
Monitoring glucose
Thrombolytic therapy
Blood pressure monitoring

9. True or False: The goal of stroke care is to complete the ED initial evaluation within 10 minutes, the neurologic evaluation within 25 minutes of arrival, and have the head CT read within 45 minutes of arrival.*

True
False

10. You are treating an individual who presented in ventricular fibrillation. After CPR and one attempt at defibrillation, his new rhythm is third degree AV block. What is the next step in management?*

Repeat defibrillation
Vasopressin
Transcutaneous pacing
High dose epinephrine

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