NCLEX CRUSADE ACADEMY TEST - 3 ESSENTIAL DRUGS FOR EMERGENCY SITUATIONS

1. Which medication is considered the drug of choice during cardiac arrest due to its vasoconstrictive and bronchodilator effects?. Lidocaine. Epinephrine. Amiodarone. Atropine.

2. Epinephrine acts on which primary physiological targets?. Kidneys and liver. Heart, vessels, and lungs. Brain and spinal cord. Pancreas and spleen.

3. Which medication is primarily used for symptomatic bradycardia?. Amiodarone. Lidocaine. Atropine. Epinephrine.

4. If symptomatic bradycardia does not resolve after atropine administration, what intervention may be required?. Defibrillation. Pacemaker insertion. Oxygen therapy. IV potassium infusion.

5. Amiodarone is classified as which type of medication?. Beta blocker. Antidysrhythmic. Diuretic. Calcium supplement.

6. Which cardiac rhythm disturbance is commonly treated with amiodarone?. Sinus bradycardia. Ventricular tachycardia. Atrial flutter only. First degree AV block.

7. What is the primary mechanism of action of amiodarone in the heart?. Increasing AV node conduction. Decreasing AV node function and slowing electrical impulses. Increasing potassium excretion. Blocking calcium channels exclusively.

8. Lidocaine is classified as which of the following?. Antihistamine. Antiarrhythmic and local anesthetic. Steroid. Vasodilator.

9. Lidocaine is commonly used to treat which cardiac abnormality?. Atrial fibrillation. Premature ventricular contractions. Sinus arrhythmia. Mitral valve prolapse.

10. Which route is required when lidocaine is used for ventricular dysrhythmias?. Oral. Subcutaneous. Intravenous. Intramuscular.

11. Which medication listed is primarily used to reverse opioid overdose?. Narcan (Naloxone). Amiodarone. Atropine. Epinephrine.

12. Potassium chloride (KCl) is classified as what type of medication risk category?. Low risk electrolyte. High alert medication. Routine electrolyte supplement. Non critical medication.

13. Why must potassium levels be closely monitored in critical care settings?. Because potassium only affects kidneys. Because small deviations may cause severe cardiac dysrhythmias. Because potassium affects liver enzymes. Because potassium controls oxygen saturation.

14. What is the optimal potassium range for maintaining cardiac stability?. 1.5 3.0 mEq/L. 2.0 4.0 mEq/L. 3.5 5.0 mEq/L. 5.5 7.0 mEq/L.

15. Hypokalemia can result in which complication?. Improved cardiac conduction. Severe dysrhythmias. Hypertension. Reduced oxygenation.

16. Hyperkalemia may lead to which clinical risk?. Severe dysrhythmias due to cardiac electrical instability. Improved cardiac contractility. Decreased blood glucose. Enhanced oxygen transport.

17. How must potassium chloride be administered when given intravenously?. IV push. Diluted in IV bag with infusion pump. Rapid bolus. Direct intramuscular injection.

18. Why is IV push potassium administration prohibited?. It is ineffective. It may cause immediate fatal cardiac arrhythmias. It reduces potassium absorption. It causes kidney stones.

19. Which organ system is most affected by potassium imbalances?. Gastrointestinal system. Nervous system. Cardiovascular system. Endocrine system.

20. In the resuscitation pharmacology system model, which drug is considered the 'universal resuscitator'?. Epinephrine. Lidocaine. Atropine. Amiodarone.

21. In the crash cart pharmacology model, atropine is referred to as what functional role?. Stabilizer. Accelerator. Neutralizer. Inhibitor.

22. Which medications are referred to as stabilizers of chaotic ventricular rhythms?. Epinephrine and atropine. Amiodarone and lidocaine. Potassium and atropine. Narcan and epinephrine.

23. Which medication primarily improves blood pressure during resuscitation?. Epinephrine. Narcan. Lidocaine. Atropine.

24. What is a secondary action of atropine besides increasing heart rate?. Decreases respiratory secretions. Dilates coronary arteries. Lowers blood glucose. Enhances kidney filtration.

25. Which medication class directly decreases conduction velocity and increases cardiac repolarization?. Diuretics. Lidocaine. Beta blockers. Antihistamines.