Human Anatomy and Physiology : Help with Evaluation Methods for the Circulatory System

Study concepts, example questions & explanations for Human Anatomy and Physiology

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Example Questions

Example Question #53 : Circulatory And Respiratory Systems

Which of the following is not measured using an arterial blood gas (ABG) test?

Possible Answers:

Bicarbonate (HCO3)

Partial pressure of oxygen

Hematocrit

Oxygen saturation (O2Sat)

Blood pH

Correct answer:

Hematocrit

Explanation:

Arterial blood gas (ABG) is a test that measures various capacities of gases to enter or exit the bloodstream, the saturation of oxygen in the blood, and materials involved in maintaining the pH level of blood. It is widely considered one of the most useful diagnostic tools for a host of circulatory conditions, and is a standard procedure for many hospital stays.

Hematocrit cannot be measured by an arterial blood gas test.

Example Question #54 : Circulatory And Respiratory Systems

What percentage of blood is plasma?

Possible Answers:

15

55

95

35

75

Correct answer:

55

Explanation:

Blood is around 55% plasma, 45% erythrocytes (red blood cells), and less than 1% of leukocytes and platelets.

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