Anatomy & Physiology Hematological #15

Question

Which substance works with platelets to coagulate the blood and decrease the risk for hemorrhage?

Answers

  1. Rh factor
    • Rationale:

      The Rh factor is an antigen within the blood that determines whether a client’s blood type is either positive or negative. It does not play a role in coagulation.

  2. Leukocytes
    • Rationale:

      Leukocytes are a type of white blood cell and do not play a role in coagulation.

  3. Erythrocytes
    • Rationale:

      Erythrocyte is the medical term for a red blood cell and it does not play a role in coagulation.

  4. Clotting factors
    • Rationale:

      Clotting factors are defined as any substance in blood plasma which are involved in the coagulation process. There are 12 clotting factors within the blood.

Overview

Coagulation is defined as the process for which blood changes to a solid or semi-solid state.

Explanation

Learning Outcomes

Platelets are a small and colorless disk-shaped cell fragment that do not contain a nucleus. They are found in large numbers in blood and play an important role in coagulation. Clotting factors work with platelets to coagulate the blood and decrease the risk for hemorrhage, or active bleeding.

Test Taking Tip

Consider the function of each option to determine the correct answer for this question.

Video Rationale