NCLEX-PN

Explanation : You should explain that superior vena cava syndrome is pressure on the vena cava, which is a major vein, not an artery, in the body that carries blood from the systemic circulation to the right atrium of the heart. This pressure on the superior vena cava prevents the normal return of the body’s circulating blood to the heart. The signs and symptoms of superior vena cava syndrome include tachypnea, dyspnea, venous stasis, a loss of consciousness, edema, seizures, respiratory and/or cardiac arrest, and syncope of unknown origin. This is a life threatening medical emergency. (See Immediate Medical Care and Interventions for Various Emergencies ) 4. Identify this cardiac rhythm strip:

A.​ Third Degree Heart Block B.​ Second Degree Atrioventricular Block, Type II C.​ Ventricular Fibrillation D.​ Premature Atrial Contractions Correct Response : C

Explanation : The two types of ventricular fibrillation that can be seen on an ECG strip are fine ventricular fibrillation and coarse ventricular fibrillation; ventricular fibrillation occurs when there are multiple electrical impulses from several ventricular sites. This results in erratic and uncoordinated ventricular and/or atrial contractions. (See Ventricular Arrhythmias ) 5. Identify this cardiac rhythm strip:

A.​ Torsades De Pointes B.​ Accelerated Idioventricular Arrhythmia C.​ First Degree Atrioventricular Heart Block D.​ Supraventricular tachycardia Correct Response : D

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