ABEM Cardiovascular & Respiratory Emergencies

Question 1

What is the first step in managing a cardiac arrest?

Accepted Answer

Initiate CPR

Answer

In managing a cardiac arrest, the immediate priority is to restore circulation and oxygenation to the brain and other vital organs. Initiating cardiopulmonary resuscitation (CPR) without delay is the critical first step, as it provides artificial circulation and breathing until advanced medical help arrives or a defibrillator can be used. Early CPR significantly improves the chances of survival and neurological outcomes.

Question 2

Which rhythm requires defibrillation?

Accepted Answer

Ventricular fibrillation

Answer

Ventricular fibrillation (VF) is a chaotic electrical activity in the ventricles that prevents the heart from pumping blood effectively, leading to cardiac arrest. Defibrillation, which delivers an electrical shock, is the definitive treatment for VF because it aims to reset the heart's electrical activity, allowing a normal rhythm to resume. Asystole, a flatline rhythm, indicates no electrical activity and does not respond to defibrillation.

Question 3

What indicates respiratory distress?

Accepted Answer

Cyanosis and effort

Answer

Respiratory distress is characterized by visible signs that indicate difficulty breathing and inadequate oxygenation. Cyanosis, a bluish discoloration of the skin or mucous membranes, signifies low oxygen levels, while increased effort (e.g., nasal flaring, retractions, accessory muscle use) shows the body struggling to breathe. These are critical indicators requiring immediate medical attention.

Question 4

What is a common asthma treatment?

Accepted Answer

Albuterol

Answer

Albuterol is a short-acting beta-agonist (SABA) bronchodilator commonly used to treat asthma symptoms. It works by relaxing the smooth muscles in the airways, opening them up and making it easier to breathe. This medication provides rapid relief for acute asthma attacks and is a cornerstone of asthma management.

Question 5

Why give aspirin in MI?

Accepted Answer

Reduces clotting

Answer

Aspirin is given in cases of myocardial infarction (MI) because it is an antiplatelet agent. It works by inhibiting platelet aggregation, which helps to prevent the formation of new blood clots and reduces the growth of existing clots in the coronary arteries. This action is crucial in limiting heart muscle damage during a heart attack.

(ABEM) American Board of Emergency Medicine Practice Test

(ABEM) American Board of Emergency Medicine Practice Test

ABEM Cardiovascular & Respiratory Emergencies