The primary way oxygen is transported in the blood is:.
Dissolved in plasma.
In the form of oxyhemoglobin.
In the form of carbaminohemoglobin.
In the form of bicarbonate.
The Correct Answer is B
hoice A rationale:
Only about 1.5% of oxygen is transported in the blood dissolved in plasma.
Choice B rationale:
The primary way oxygen is transported in the blood is in the form of oxyhemoglobin, which accounts for about 98.5% of oxygen transport.
Choice C rationale:
Oxygen is not primarily transported in the form of carbaminohemoglobin.
Choice D rationale:
Oxygen is not primarily transported in the form of bicarbonate.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
The correct answer is Choice D.
Choice A rationale:
Vasoconstriction refers to the narrowing of blood vessels. When blood vessels constrict, they reduce the volume of blood that can flow through them, which increases the pressure. However, the flow is decreased, not increased.
Choice B rationale:
As explained above, vasoconstriction increases pressure but decreases flow.
Choice C rationale:
While vasoconstriction does increase pressure, it does not increase flow. Instead, it decreases flow.
Choice D rationale:
Vasoconstriction results in increased pressure and decreased flow. This happens because the narrowing of the blood vessels increases the resistance to blood flow, thereby increasing the pressure. At the same time, the reduced diameter of the blood vessels decreases the amount of blood that can flow through them.
Correct Answer is D
Explanation
hoice A rationale:
External intercostals assist in inspiration by elevating the ribs and expanding the chest cavity.
Choice B rationale:
Abdominals are not the main muscles responsible for pulmonary ventilation.
Choice C rationale:
Internal intercostals assist in forced expiration.
Choice D rationale:
The diaphragm is the main muscle responsible for pulmonary ventilation.
So, the correct answer is Choice D, after analyzing all choices.
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