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A nurse is teaching a class about oxygen transport in the cardiopulmonary system. Which of the following transports oxygen in the blood?

A.

Lymphocytes

B.

Neutrophils

C.

Platelets

D.

Hemoglobin

Answer and Explanation

The Correct Answer is D

A.    Lymphocytes are a type of white blood cell that plays a crucial role in the immune system, specifically in the response to infections and in immune regulation. They do not have a role in the transport of oxygen in the blood.
B.    Neutrophils are another type of white blood cell that is essential for fighting bacterial infections. They are part of the body's immune response but do not transport oxygen.
C.    Platelets are small cell fragments that are crucial for blood clotting and wound repair. They do not have a role in oxygen transport.
D.    Hemoglobin is the primary molecule responsible for transporting oxygen in the blood. It is a protein found in red blood cells (erythrocytes) that binds to oxygen in the lungs and releases it in tissues throughout the body. Hemoglobin carries the majority of oxygen in the bloodstream and is essential for effective oxygen transport and delivery.
 


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Related Questions

Correct Answer is A

Explanation

A. Slow and steady bubbling in the suction control chamber is expected and indicates that the system is functioning properly. It is designed to regulate the pressure within the chest cavity by allowing excess air and fluid to escape, ensuring that the lungs can re-expand properly
B. Checking for leaks is are unnecessary as the system is functioning as expected.
C. Checking the suction control outlet is are unnecessary as the system is functioning as expected.
D. Clamping the chest tube is are unnecessary as the system is functioning as expected.

Correct Answer is A

Explanation

A. Decreased renal function is a common age-related change that can significantly increase postoperative complications, such as fluid and electrolyte imbalances, and medication toxicity.
B. Seasonal allergies are not specifically related to postoperative risks and can affect people of all ages.
C. Family history of cancer is a general health risk factor, not specifically postoperative.

D. Hypertension is a common chronic condition that can affect people of all ages and while it can increase postoperative risks, it's not specific to older adults.

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