PSI Barbering Practice Exam 2025 – 400 Free Practice Questions to Pass the Exam

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What is the typical color of blood when it is in the veins?

Bright red

Dark red

The typical color of blood when it is in the veins is dark red. This coloration arises due to the deoxygenation of the blood as it returns from the body to the heart. Venous blood carries less oxygen than arterial blood, which is why it appears darker. The difference in color is mainly a result of the hemoglobin's state; when hemoglobin binds to oxygen, it becomes a bright red color, typical of oxygen-rich arterial blood. As the oxygen is delivered to tissues and carbon dioxide accumulates, the blood's color shifts to a darker shade due to the reduced oxygen saturation.

While some may mistakenly think venous blood is blue due to the appearance of veins through the skin, this is a misconception. Skin and underlying tissue can give a bluish hue, but the blood itself remains dark red. Hence, the option indicating dark red accurately represents the color of blood found in the veins.

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Pale yellow

Blue

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