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Cardiopulmonary Anatomy & Physiolo...

7th Edition
Des Jardins + 1 other
ISBN: 9781337794909

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Section
BuyFindarrow_forward

Cardiopulmonary Anatomy & Physiolo...

7th Edition
Des Jardins + 1 other
ISBN: 9781337794909
Textbook Problem

The symptoms of acute mountain sickness are generally most severe on the

A. First or second day after ascent

B. Second or third day after ascent

C. Third or fourth day after ascent

D. Fourth or fifth day after ascent

Summary Introduction

Introduction:

Mountain sickness is caused due to high altitudes. The low levels of oxygen at high altitudes are also responsible for mountain sickness. The symptoms seen in an individual suffering from mountain sickness include headache, vomiting, trouble in sleeping, and dizziness.

Explanation

Justification/explanation for the correct answer:

Option (B) states that on the second or third day, acute mountain sickness symptoms become most severe. The peripheral chemoreceptors stimulate ventilation and lead to an increase in the same. Respiratory alkalosis is prevented with the help of the renal system, which takes over 24–48 hours. Hence, option (B) is correct.

Explanation for the incorrect answer:

Option (A) states that acute mountain sickness becomes most severe on the first or second day of ascent. It has been observed that even the people residing in that place only experience acute mountain sickness. It takes 24–48 hours to acclimatize. So, it is an incorrect option.

Option (C) states that on the third or fourth day after ascent, the symptoms of acute mountain sickness are generally most severe...

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