1
Q:

The purpose of defibrillation is to

A) prevent asystole from deteriorating into ventricular fibrillation B) stop the chaotic, disorganized contraction of the cardiac cells
C) cause a rapid decrease in the heart rate of an unstable patient D) improve the chance of cardiopulmonary resuscitation (CPR) being successful in resuscitation

Answer:   B) stop the chaotic, disorganized contraction of the cardiac cells



Explanation:

The purpose of defibrillation is to stop the chaotic, disorganized contraction of the cardiac cells. Defibrillation is a technique used in emergency medicine to terminate ventricular fibrillation or pulseless ventricular tachycardia. It uses an electrical shock to reset the electrical state of the heart so that it may beat to a rhythm controlled by its own natural pacemaker cells.

Subject: General Science
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Q:

Which of the following is a wind based Indian musical instrument?

A) Taus B) Swarmandal
C) Samvadini D) Rabab
 
Answer & Explanation Answer: C) Samvadini

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Q:

Bulb is a modification of which part of a plant?

A) The root B) The stem
C) The radicle D) The fruit
 
Answer & Explanation Answer: B) The stem

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Q:

In terms of size, Venus ranks no. ___ in our Solar System.

A) 5 B) 6
C) 7 D) 8
 
Answer & Explanation Answer: B) 6

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Q:

ABM stands for ______.

A) Anti Belligerent Mine B) Anti Base Machine
C) Anti Body Mechanics D) Anti Ballistic Missile
 
Answer & Explanation Answer: D) Anti Ballistic Missile

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Q:

In terms of size, Earth ranks no. ___ in our Solar System.

A) 5 B) 6
C) 7 D) 8
 
Answer & Explanation Answer: A) 5

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Q:

The Ozone layer is present in which atmospheric layer?

A) Lithosphere B) Ionosphere
C) Stratosphere D) Biosphere
 
Answer & Explanation Answer: C) Stratosphere

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Q:

Name the scientist who proposed the cell theory

A) Schleiden and Schwann B) Lamarck
C) Treviranus D) Whittaker and Stanley
 
Answer & Explanation Answer: A) Schleiden and Schwann

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Q:

______ is the time taken by the earth to return to a given point in its orbit with reference to a fixed star.

A) Lunar year B) Sidereal year
C) Solar year D) Tropical year
 
Answer & Explanation Answer: B) Sidereal year

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