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Practice Question

Which of the following clump and adhere to the wall of the injured blood vessel to begin the process of hemostasis?

Answer Choices:

Correct Answer:

Platelets

Rationale:

🟣 Platelets (also called thrombocytes) are essential for hemostasis, the body’s natural process to stop bleeding. When a blood vessel is injured, platelets are the first responders—they adhere to the damaged site, become activated, and clump together to form a platelet plug, which initiates clot formation.

🟣 White blood cells — These are part of the immune system, responsible for fighting infection, not for stopping bleeding.

🟣 Antibodies — These are immune proteins that target pathogens, but they do not contribute to clotting or hemostasis.

🟣 Red blood cells — RBCs carry oxygen, and while they may get trapped in clots, they do not initiate the clotting process.

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This question is from ATI Pharmacology Quiz 25E which contains 40 questions.

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From Exam
ATI Pharmacology Quiz 25E

40 Questions

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Question Details
  • Category: RN - Nursing Exam(s)
  • Subcategory: ATI Exams
  • Domain: ATI PHARMACOLOGY
  • Answer Choices: 4
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