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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

In healthy men, the hematocrit is about

A .            25%       C . 45% B .            35%       D . 65%

Summary Introduction

Introduction:

Blood is the fluid connective tissue present in the body of vertebrates. It is homogeneous and thick with cellular components. The cells present in it are known as formed elements. These cells are suspended in plasma, which is a nonliving fluid matrix. The total volume of the blood constituted by erythrocytes or red blood cells is known as hematocrit.

Explanation

Justification for the correct answer:

Option (C) is given as 45%. Hematocrit is 45% in a normal adult male and 42% in a normal adult female. Hematocrit is 45–60% in a healthy newborn. Hence, option (C) is correct.

Justification for the incorrect answers:

Option (A) is given as 25%. A healthy male always has approximately 45% of the hematocrit. There are many reasons that may lead to low levels of hematocrit in a male, like a low level of testosterone or a recent heavy blood loss. So, it is an incorrect option...

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