A 64-Year-Old Patient Is Seen in the Emergency Department for Palpitations

question 21

Multiple Choice

A 64-year-old patient is seen in the emergency department for palpitations and mild shortness of breath.The electrocardiogram reveals a normal P wave,P-R interval,and QRS complex with a regular rhythm and a rate of 108 beats per minute.The nurse should recognize this as which type of cardiac dysrhythmia?

• A) Sinus dysrhythmia
• B) Sinus tachycardia
• C) Supraventricular tachycardia
• D) Ventricular tachycardia

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Definitions:

Portfolio Beta

A measure of the volatility of a portfolio relative to the market as a whole.

Security A

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Firm's Beta

A measure of a stock's volatility in relation to the overall market; a beta greater than 1 means the stock is more volatile than the market, while a beta less than 1 means it is less volatile.

Single-Factor Market Model

A financial model that explains a security's returns as the outcome of a single market-wide factor and the security's sensitivity to that factor.