A nurse is assisting with collecting data on a client who is on a continuous ECG monitor. The client's ECG tracing shows no identifiable P waves and an irregular ventricular rate. The nurseshould recognize the client is experiencing which of the following cardiac dysrhythmias?
Complete heart block
Atrial fibrillation
Sinus tachycardia
First-degree AV block.
The Correct Answer is B
a. Complete heart block: Complete heart block would typically present with a regular ventricular rate, but with no association between P waves and QRS complexes.
b. Atrial fibrillation: Atrial fibrillation is characterized by the absence of identifiable P waves and an irregular ventricular rate. The atria fibrillate, leading to chaotic electrical activity and an irregular ventricular response.
c. Sinus tachycardia: Sinus tachycardia is characterized by a regular ventricular rate and identifiable P waves. It is not associated with the absence of P waves.
d. First-degree AV block: First-degree AV block is characterized by a prolonged PR interval, but it does not result in the absence of P waves. The relationship between P waves and QRS
complexes is maintained.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
a. Droplet precautions: Droplet precautions are used for diseases that are transmitted by
respiratory droplets, such as influenza or pneumonia. HIV is not transmitted through respiratory droplets.
b. Airborne precautions: Airborne precautions are used for diseases that are transmitted through the airborne route, such as tuberculosis. HIV is not transmitted through the airborne route.
c. Standard precautions: Standard precautions are used for the care of all patients, regardless of their diagnosis. These precautions include hand hygiene, use of personal protective equipment (PPE) as needed, and safe injection practices.
d. Contact precautions: Contact precautions are used for diseases that are spread by direct or indirect contact, such as methicillin-resistant Staphylococcus aureus (MRSA). HIV is not
transmitted through contact with intact skin.
Correct Answer is D
Explanation
A. Inspiratory stridor - This is associated with upper airway obstruction and is not indicative of a pneumothorax.
B. Expiratory wheeze - Wheezing is commonly associated with lower airway conditions such as asthma or chronic obstructive pulmonary disease (COPD), not pneumothorax.
C. Coarse crackles - Coarse crackles are typically heard in conditions such as pneumonia or pulmonary edema, not pneumothorax.
D. Absence of breath sounds - This is a key manifestation of a pneumothorax. The air in the pleural space can prevent the lung from fully expanding, leading to the absence of breath sounds on the affected side.
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