Practice Question
A nurse is assisting with teaching a class about oxygen transport in the cardiopulmonary system. Which of the following cells transports oxygen in the blood?
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Correct Answer:
Hemoglobin
Rationale:
💎 Hemoglobin is a specialized iron-containing protein found within red blood cells (erythrocytes) that is responsible for binding and transporting oxygen from the lungs to body tissues.
💎 Each hemoglobin molecule can carry up to four oxygen molecules, forming oxyhemoglobin when oxygenated in the pulmonary capillaries.
💎 As blood circulates, hemoglobin releases oxygen in tissues where oxygen tension is low and binds carbon dioxide for return to the lungs.
💎 This oxygen transport system is essential for maintaining cellular respiration and energy production.
💎 Conditions such as anemia, hemorrhage, or carbon monoxide poisoning reduce hemoglobin’s ability to carry oxygen, leading to hypoxia.
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This question is from PN-CUSTOM GAS EXCHANGE AND OXYGENATION CLONED ASSESSMENT 2 which contains 50 questions.
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From Exam
PN-CUSTOM GAS EXCHANGE AND OXYGENATION CLONED ASSESSMENT 2
50 Questions
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- Category: LPN Nursing Exam(s)
- Subcategory: LPN ATI Exams
- Domain: Medical-Surgical
- Answer Choices: 4